Mechanical and Materials EngineeringWestern Engineering

Publications

Articles in Peer-Reviewed Journals:

  1. M. Haghshenas, R.J. Klassen; “Assessment of the depth dependence of the indentation stress during constant strain rate nanoindentation of 70/30 brass”, Materials Science and Engineering A, 572(2013) pg. 91-97.

  2. B.M. Berven, R. Oviasuyi, R.J. Klassen, M. Idacavage, P.J. Ragogna; “Self-crosslinking borate anions for production of tough UV-cured polyelectrolyte surfaces”, Journal of Polymer Science A, 51(2013) pg. 499-508.

  3. R. Oviasuyi and R.J. Klassen; “Deducing the stress-strain response of anisotropic Zr-2.5%Nb pressure tubing by spherical indentation testing”, Journal of Nuclear Materials, 432(2013) pg. 28-34.

  4. M. Haghshenas, J.T. Wood, and R.J. Klassen; “Effect of strain-hardening rate on the grain-to-grain variability of local plastic strain in spin-formed fcc metals”, Materials Science and Engineering A, 552(2012) pg. 376-383.

  5. R. Oviasuyi and R.J. Klassen; “Assessment of the anisotropic flow stress and plastic strain of Zr-2.5%Nb pressure tubes at temperature from 25°C to 300°C”, Journal of Nuclear Materials, 429(2012) pg. 7-9.

  6. M. Haghshenas, L. Wang, R.J. Klassen; “Depth dependence and strain rate sensitivity of the indentation stress of the 6061 aluminum alloy”, Materials Science and Technology, 28 no. 9-10 (2012) pg 135-141.

  7. D.O. Costa, B.A. Allo, R. Klassen, J.L. Hutter, S.J. Dixon, and A.S. Rizkalla; “Control of Surface Topography in Biomimetic Calcium Phosphate Coatings”, Langmuir, 28 no. 8 (2012) pg. 3871-3880.

  8. R. Oviasuyi and R.J. Klassen; “Effect of Zr ion irradiation on the anisotropic deformation of Zr-2.5%Nb micro-pillars” Journal of Nuclear Materials, 421(2012) pg. 54-57.

  9. M. Haghshenas, J.T. Wood, R.J. Klassen; “Effect of Strain-hardening rate on splined mandrel flow forming of aluminum alloys” Materials Science and Engineering A, 532(2012) pg. 287-294.

  10. B. Bose, R.J. Klassen; “Temperature dependence of the anisotropic deformation of Zr-2.5%Nb pressure tube material during micro-indentation” Journal of Nuclear Materials, 419(2011) pg. 235 - 240.

  11. M. Haghshenas, M. Jhaver, R.J. Klassen, J.T. Wood; “Plastic strain distribution during splined-mandrel flow forming”, Materials and Design, 32(2011) pg. 3629 – 3636.

  12. B. Bose, R.J. Klassen; “Effect of Zr+ ion irradiation on the mechanical anisotropy of Zr-2.5%Nb pressure tube material”, Journal of Nuclear Materials, 405(2010) pg. 138 - 143.

  13. M. J. Roy, D.M. Maijer, R.J. Klassen, J.T. Wood, E. Schost; “Analytical Solution of the Tooling/Workpiece Contact Interface Shape During a Flow Forming Operation”, Journal of Materials Processing Technology 210(2010) pg. 1976-1985.

  14. B. Bose, R.J. Klassen; “Effect of ion irradiation and indentation depth on the kinetics of deformation during microindentation of Zr 2.5Nb pressure tube material at 25oC”, Journal of Nuclear Materials, 399(2010) pg. 32-37.

  15. J. Chao, A. Mark, M.L. Suominen Fuller, N.S. McIntyre, R.A. Holt, R.J. Klassen, W. Liu;” Study of residual elastic- and plastic- deformation in uniaxial tensile strained nickel-based Alloy 600 samples by polychromatic x-ray microdiffraction (PXM) and neutron diffraction methods”, Materials Science and Engineering A524(2009) pg. 20-27.

  16. V. Bhakhri and R.J. Klassen;” The strain-rate dependence of the nanoindentation stress of Gold at 300K: A deformation kinetics-based approach”, Journal of Materials Research 24(2009) pg. 1456-1465.

  17. B. Bose and R.J. Klassen;” Effect of copper addition and heat treatment on the depth dependence of the nanoindentation creep of aluminum at 300K”, Materials Science and Engineering A 500(2009) pg. 164-169.

  18. M. J. Roy, R.J. Klassen, J.T. Wood; “Evolution of Plastic Strain During a Flow Forming Process”, Journal of Materials Processing Technology 209(2009) pg. 1018-1025.

  19. H. Mohammadi, R.J. Klassen, and W-K. Wan; “A Finite Element Model on Effects of Impact Load and Cavitation on Fatigue Crack Propagation in Mechanical Bileaflet Aortic Heart Valve”, Proceedings of the IMechE vol. 222 Part H: Journal of Engineering in Medicine 222(2008) pg. 1115-1125.

  20. M.L. Suominen Fuller, R.J. Klassen, N.S. McIntyre, A.R. Gerson, S. Ramamurthy, P.J. King, and W. Liu; “Texture, residual strain, and plastic deformation around scratches in Alloy 600 using synchrotron X-ray Laue micro-diffraction”, Journal of Nuclear Materials 374(2008) pg. 482 - 487.

  21. J.P. Weiler, J.T. Wood, R.J. Klassen, E. Maire, R. Berkmortel, G. Wang; “Porosity, damage evolution and fracture in die-cast Magnesium alloy AM60B”, Advanced Materials Research 15-17(2007) pg. 455 – 460.

  22. V. Bhakhri and R.J. Klassen; “The depth dependence of the indentation creep of polycrystalline gold at 300K” Scripta Materialia 55(2006) pg. 395-398.

  23. J.P. Weiler, J.T. Wood, R.J. Klassen, R. Berkmortel, G. Wang; “Variability in skin thickness in an AM60B magnesium alloy die-casting” Materials Science and Engineering A 419(2006) pg. 297-305.

  24. V.Bhakhri and R.J.Klassen; “Investigation of high-temperature plastic deformation using instrumented microindentation test, Part I: The deformation of three aluminum alloys at 473K to 833K” Journal of Materials Science 41(2006) pg. 2259 - 2270.

  25. V.Bhakhri and R.J.Klassen; “Investigation of high-temperature plastic deformation using instrumented microindentation tests, Part II: The deformation of Al-Based Particulate Reinforced Composites at 473K to 833K”, Journal of Materials Science, 41(2006) pg. 2249 - 2258.

  26. J.P. Weiler, J.T. Wood, R.J. Klassen, R. Berkmortel, G. Wang; "The effect of grain size on the flow stress determined from spherical microindentation of die-cast magnesium AM60B alloy" accepted for publication Journal of Materials Science, March 2005.

  27. J.P. Weiler, J.T. Wood, R.J. Klassen, E. Maire, R. Berkmortel, G. Wang; "Relationship between internal porosity and fracture strength of die-cast Magnesium AM60B alloy" Materials Science and Engineering A, 395(2005) pg. 315-322.

  28. R.J. Klassen, B.J. Diak, S. Saimoto; "Origin of the depth dependence of the apparent activation volume in polycrystalline 99.999% Cu determined by displacement rate change micro-indentation" Accepted for publication in Materials Science and Engineering A, January 2004.

  29. R.J. Klassen, K.T. Conlon, J.T. Wood; "Thermal relaxation of internal strain in two-phase Cu-Nb wire", Scripta Materialia, 48 (2003) pg. 385 - 389.

  30. N. Christodoulou, P.A. Turner, C.N. Tome, C.K. Chow, R.J. Klassen; "Analysis of steady-state thermal creep of Zr-2.5Nb pressure tube material", Metallurgical and Materials Transaction, 33A (2002) pg. 1103 - 1115.

  31. R.J. Klassen, G.C. Weatherly, B. Ramaswami; "Fracture Mechanisms in Constrained Ni Interlayers", Materials Science and Engineering A161 (1993) pg. 181-186.

  32. R.J. Klassen, G.C. Weatherly, B. Ramaswami; "Void growth and coalescence in constrained Ag Interlayers" Metallurgical Transactions 23A (1992) pg. 3273-3280.

  33. R.J. Klassen, G.C. Weatherly, B. Ramaswami; "Void nucleation in constrained Ag interlayers", Metallurgical Transactions 23A (1992) pg. 3281-3291.

  34. M.N. Bassim, R.J. Klassen, M.R. Bayoumi and H.G.F. Wilsdorf; "Fracture Topography of HSLA Steels" Materials Science and Engineering, 92 (1987) pg. 107-111.

  35. M.N. Bassim, R.J. Klassen; "A note on the variation of dislocation cell size with strain in HSLA steels" Scripta Metallurgica, 21 (1987) pg. 625-626.

  36. M.N. Bassim, R.J. Klassen; "Variation in dislocation cell size with local strain in a low alloy steel" Materials Science and Engineering, 81 (1986) pg. 163-167.

  37. R.J. Klassen, M.N. Bassim, M.R. Bayoumi and H.G.F. Wilsdorf; "Characterization of the effect of alloying elements on the fracture toughness of high strength low alloy steels" Materials Science and Engineering, 80 (1986) pg. 25-37.

Articles in Peer-Reviewed Conference Proceedings:

  1. A.Z.M. Islam and R.J. Klassen; “of the Size Dependence of Time-dependent Plastic Deformation of Gold Micro-pillars and Micro-spheres”, accepted for presentation at the 2013 MRS Spring Meeting, April 1-5, 2013, San-Francisco, California.

  2. M. Haghshenas, L. Wang, R.J. Klassen; Strain rate dependence of the indentation stress of heat-treated AA 6061 alloy over the indentation depth range from 50 nm to 10.0 mm. Symposium of Hardness across the multi-scales of structure and loading rate, Materials Science and Technology Conference, Editors: R. Armstrong, D. Bahr, N. Thadani, S. Walley, Cleveland Ohio, October 2011.

  3. B. Bose, R.J. Klassen; “Assessment of the Effect of Irradiation Temperature on the Mechanical Anisotropy of the Zr Ion Irradiated Zr-2.5%Nb” Materials Research Society Fall Meeting (Symposium Q), Boston MA, November 29 - December 3, 2010.

  4. B. Bose and R.J. Klassen; “Indentation Creep Studies of the Effect of Ion-Irradiation on the Mechanical Anisotropy of Zr-2.5Nb Pressure Tube Material at 250C” NuMat Conference, Karlsruhe, Germany, August, 2010.

  5. M. Haghshenas, R.J. Klassen, J.T. Wood; “Investigation of the equivalent plastic strain within a flow formed steel work piece determined by micro-indentation hardness and grain-shape analysis”, IDDRG (International Deep Drawing Research Group) Annual International Conference, Graz, Austria, May 31 – June 2, 2010.

  6. R.J. Klassen, Y. Liu; “The Role of Grain Boundaries in the Creep of Sub-micrometer Thick Cu and Cu/Si3N4 Microbeams at 300K”, Failure of Small-Scale Structures: Deformation and Failure Symposium TMS (The Minerals, Metals, and Materials Society) Annual Meeting, Seattle, WA, USA, February 2010.

  7. M. Suominen Fuller, J. Chao, A. Mark, R. Barabash, S. McIntyre, R. Holt, R. Klassen, W. Liu; “Measurement of Strain in Uniaxial Tensile Tested Alloy 600 Using Neutron Diffraction and Laue X-ray Micro Diffraction”, Neutron and X-Ray Studies of Advanced Materials Symposium TMS (The Minerals, Metals, and Materials Society) Annual Meeting, San Francisco, CA, USA, February 2009.

  8. J. Chao, M. Suominen Fuller, R. Barabash, S. McIntyre, R. Holt, R. Klassen, W. Liu; “X-ray micro laue diffraction and neutron diffraction analysis of residual elastic strains in a 1% uniaxial tensile tested nickel alloy 600 sample” Materials Research Society Fall Meeting, Vol. 1137, Boston, MA, 2008, pg. 131.

  9. V. Bhakhri and R.J. Klassen; “High-temperature deformation kinetics of Gold at 473K to 773K” Materials Research Society Fall Meeting (Symposium EE), Boston MA, December 1 – 6, 2008.

  10. V. Bhakhri and R.J. Klassen; “Haasen plot activation analyses of constant-force indentation creep in fcc systems” Fundamentals of Nanoindentation and Nanotribology IV, edited by E. Le Bourhis, D.J. Morris, M.L. Oyen, R. Schwaiger, T. Staedler, MRS vol 1049 (2007), pg. 169 – 174.

  11. J.P. Weiler, J.T. Wood, R.J. Klassen, G. Wand, “Damage modeling of die-cast magnesium alloy AM60B”, Proceedings of the Third International Conference on Light Metals Technology, Eds. K. Sadayappan and M. Sahoo, Public Works and government Services Canada, Saint-Sauver, Quebec, September 24-26 (2007), pg. 109 – 114.

  12. P. Tomlinson, M. Roy, R. Klassen, J. Wood; “Numerical Modeling of a Flow Forming Process”, ASME Applied Mechanics and Materials Conference (McMAT), Austin, Texas, USA, June 2007.

  13. M. Roy, P. Tomlinson, R. Klassen, J. Wood; “Strain Mapping of a Flow Formed Material”, ASME Applied Mechanics and Materials Conference (McMAT), Austin, Texas, USA, June 2007.

  14. M. Fuller, S. Ramamurthy, S. McIntyre, R. Klassen, P. King, A. Gerson, W. Liu, “Texture and residual strain Measurements on polished Alloy 600 coupons containing two scratches using synchrotron micro-laue diffraction”, Paper # 3B002, Page 1-17, 5th CNS International Steam Generator Conference, Organized by the Canadian Nuclear Society, Toronto, November 26 - 29, 2006.

  15. J.P. Weiler, J.T. Wood, R.J. Klassen, G. Wang, R. Berkmortel; “Relationships between structure and mechanical properties in a die-cast AM60B magnesium alloy component” International Symposium on Magnesium Technology in the Global Age, Metallurgical Society of the CIM and Mg Committee of the TMS, Montreal, October 2006.

  16. R.J. Klassen and V. Bhakhri; “Investigation of the time-dependent plasticity of polycrystalline gold using the nanoindentation testing technique”, Invited paper presented at the 12th International Symposium, Plasticity 2006, Halifax, June 17 – 22, 2006.

  17. J.P. Weiler, J.T. Wood, R.J. Klassen, E. Maire, J. Adrien, R. Berkmortel, G. Wang; “Fracture Characteristics of Die Cast Magnesium Alloy AM60B Determined from High-Resolution X-Ray Tomography under Tensile Loading” Magnesium Technology 2006, Edited by A. Luo, N.R. Neelameggham, and R. Beals, TMS (The Minerals, Metals, and Materials Society) Annual Meeting, San Antonio, March 2006.

  18. L. Han, D.O Northwood, H. Hu, N. Li, R. Klassen, M. Zhou; "Observation of the Microstructure and Characterization of Local Mechanical Properties of AM50 Using A Micro-Indentation Technique", Magnesium Technology 2005, Edited by N.R. Neelameggham, H.I. Kaplan, and B.R. Powell, TMS (The Metals & Materials Society) Annual Meeting, San Francisco.

  19. J.P. Weiler, J.T. Wood, R.J. Klassen, R. Berkmortel, J. Wang; "Stress-strain response in skin and core regions of die cast magnesium alloy AM60B determined from spherical microindentation", Magnesium Technology 2005, Edited by N.R. Neelameggham, H.I. Kaplan, and B.R. Powell, TMS (The Minerals, Metals, and Materials Society) Annual Meeting, San Francisco.

  20. J.T. Wood, R.J. Klassen, M.A. Gharghouri, E. Marie, G. Wang, R. Berkmortel; "Mechanical Properties of AM60B die castings: a review of the AUTO21 program on magnesium die-casting" Accepted for presentation at SAE 2005 World Congress (Society of Automotive Engineers), Detroit, April 2005.

  21. J.P. Weiler, J.T. Wood, R.J. Klassen, R. Berkmortel, J. Wang; "Use of computer-controlled spherical microindentation to determine the stress-strain response of the die cast magnesium alloy AM60B", presented at the Canadian Society of Mechanical Engineering meeting, London Ontario, June 2004.

  22. R.J. Klassen, B.J. Diak, S. Saimoto; "Origin of the depth dependence of the apparent activation volume in polycrystalline 99.999% Cu determined by displacement rate change micro-indentation" presented at the 13th International Conference on the Strength of Materials, ICSMA-13, Budapest Hungary, Aug. 2003.

  23. R.N. Saraf, R.J. Klassen; "Investigation of the thermal creep properties of Al/SiC composites made by the powder metallurgy technique. in 4th Canada-Japan Workshop on Composites, CRC Press (2002).

  24. N. Christodoulou, A.R. Causey, R.A. Holt, C.N. Tome, N. Badie, R.J. Klassen, R. Sauve, and C.H. Woo; "Modeling in-reactor deformation of Zr-2.5Nb pressure tubes in CANDU power reactors" in Zirconium in the Nuclear Industry; 11th International Symposium, ASTM STP 1295, American Society for Testing and Materials, Garmisch-Partenkirchen (1995).

  25. R.J. Klassen, A.R. Causey, N. Christodoulou; "Dependence of irradiation creep of Zircaloy-2 at 340K on microstructure", in Creep: Characterization, Damage and Life Assessment; 5th International Conference on Creep of Materials, American Society for Metals (1992).

  26. R.J. Klassen, J.H. Root and T.M. Holden; "Neutron diffraction for non-destructive evaluation of internal stress in engineering components", Proceedings of the 37th International Instrumentation Symposium; Instrumentation Society of America (1991)

Abstracts, Presentations at Professional Meetings:

  1. R.O. Oviasuyi and R.J. Klassen; “Anisotropic Deformation of Zr Ion Irradiated Zr- 2.5%Nb Micro-Pillars”, presented at the 24th Canadian Materials Science Conference, London ON, June 5-8, 2012.

  2. B. Bose, B.J. Diak, and R.J. Klassen; “Characterization of the Deformation Kinetics of Zr-2.5%Nb CANDU Pressure Tube Material using Displacement Rate Change Micro-Indentation”, presented at the 24th Canadian Materials Science Conference, London ON, June 5-8, 2012.

  3. A. Islam and R.J. Klassen; “Length Scale Dependence of the Constant-Load Creep of Au Micro-Pillars at Room Temperature”, presented as a poster at the 24th Canadian Materials Science Conference, London ON, June 5-8, 2012.

  4. M. Haghshenas, J.T. Wood, and R.J. Klassen; “Work Hardening Rate in Splined Mandrel Flow Forming of FCC Alloys”, presented at the 24th Canadian Materials Science Conference, London ON, June 5-8, 2012.

  5. B. Vriens, and R.J. Klassen; “Investigation of the Effect of Roller Inclination Angle on the Forming Forces During Splined Mandrel Flow Forming of a Steel Work Piece”, presented at the 24th Canadian Materials Science Conference, London ON, June 5-8, 2012.

  6. M. Haghshenas, L. Wang and R.J. Klassen; Strain rate dependence of the indentation stress of AISI 1020 over the indentation depth range from 100 nm to 10.0 mm” presented at the 23rd Canadian Materials Science Conference, Kelowna BC, June 2011.

  7. R.J. Klassen, J.S. Grewal, V. Bhakhri; The Analysis of Local Plasticity during Macro-indentation of the Nickel-based Alloy 600 Used in CANDU Steam Generator Tubing, presented at the 32nd Canadian Nuclear Society Conference, Niagra Falls ON, June 2011.

  8. R. Oviasuyi and R.J. Klassen: Micro-Indentation based Investigation of the Anisotropy of Plastic Deformation in Select Zirconium Alloys, presented at the 22nd Canadian Materials Science Conference, Waterloo ON, June 2010.

  9. M. Haghshenas and R.J. Klassen; An investigation of the effect of forming forces on the mandrel teeth during splined mandrel flow forming under different forming conditions, presented at the 22nd Canadian Materials Science Conference, Waterloo ON, June 2010.

  10. A.Z.M. Islam and R.J. Klassen; FE Analysis of Residual Stress at Grain Boundaries That Undergo SCC in the A600 Ni-based Alloy, presented at the 22nd Canadian Materials Science Conference, Waterloo ON, June 2010.

  11. B. Bose and R.J. Klassen: Effect of Ion-Irradiation on the Indentation Creep of Zr-2.5%Nb Pressure Tube Material at 298K, presented at the 22nd Canadian Materials Science Conference, Waterloo ON, June 2010.

  12. M. Haghshenas, R.J. Klassen, J.T. Wood; “Strain Distribution During Splined-mandrel Flow Forming” presented at the 22nd Canadian Materials Science Conference, Waterloo ON, June 2010.

  13. R.J. Klassen; “Mechanical Testing of Metallic Microsample”, poster presentation at Nano-Ontario 2010 Ontario Nanoscience and Nanotechnology Workshop, London ON, May 16 – 18, 2010.

  14. A.Z.M. Islam and R.J. Klassen; “A Finite Element Simulation of the Residual Stress at Grain Boundaries Near Conical Micro-Indentations in an Elastically Anisotropic/Plastically Isotropic Nickel-Based Alloy” presented at the 21st Canadian Materials Science Conference, Kingston ON, June 2009.

  15. V. Bhakhri, R.J. Klassen; “The Kinetics of the Plastic Deformation of Gold at Temperature from 300 K to 773 K” presented at the 21st Canadian Materials Science Conference, Kingston ON, June 2009.

  16. B. Bose, R.J. Klassen; “Assessment of Local Plastic Deformation of Zr-2.5%Nb CANDU Pressure Tubes at 298K” presented at the 21st Canadian Materials Science Conference, Kingston ON, June 2009.

  17. M. Haghshenas, R.J. Klassen, J.T. Wood; “An analysis of the High Strain-Rate Fatigue Failure of S7 Tool Steel Splined Mandrels During the Flow Forming Process” presented as a poster at the 21st Canadian Materials Science Conference, Kingston ON, June 2009.

  18. P. Tomlinson, R. Klassen, J. Wood, M. Roy; “Numerical Strain Analysis of a Flow Forming Operation” 21st Canadian Congress of Applied Mechanics, Toronto, June 3 – 7, 2007.

  19. M. Roy , R. Klassen, J. Wood, P. Tomlinson; “Distribution of Local Strain During Single-Roller Flow Forming of 1020 Steel” 21st Canadian Congress of Applied Mechanics, Toronto, June 3 – 7, 2007

  20. Y. Liu and R.J. Klassen; “Bending Creep of Bi-Layer Thin Film Microbeams” presented at the 19th Canadian Materials Science Conference, Hamilton ON, June 2007.

  21. B. Bose and R.J. Klassen; “Effect of Heat Treatment on the Deformation Parameters of a 2024 Aluminum Alloy during Nanoindentation at 300K” presented at the 19th Canadian Materials Science Conference, Hamilton ON, June 2007.

  22. M. Roy, R.J. Klassen, J. Wood; “Strain Mapping of Flow Formed 1020 Steel” presented at the 19th Canadian Materials Science Conference, Hamilton ON, June 2007.

  23. V. Bhakhri and R.J. Klassen; “Length-Scale Dependence of Deformation Kinetics of Gold at Ambient Temperature” presented at the 19th Canadian Materials Science Conference, Hamilton ON, June 2007.

  24. P. Tomlinson, R. Klassen, J. Wood; “Two Dimensional Numerical Modelling of a Flow Forming Operation” presented at the 19th Canadian Materials Science Conference, Hamilton ON, June 2007.

  25. S. Ramamurthy, N.S. McIntyre, M. Fuller, R.J. Klassen, R. Barabash, R. Holt and O. Yong, "Strain Measurements Using Synchrotron Micro-Laue Diffraction", Paper # 95, Proc. Cold Work Workshop, Organized by AECL, COG and EPRI, Mississauga ON, June 3-8, 2007.

  26. M.L. Suominen Fuller, S. Ramamurthy, N.S. McIntyre, R.J. Klassen, P.J. King, A. Gerson and W. Liu, Texture and Residual Strain Measurements on Polished Alloy 600 Coupons Containing Two Scratches Using Synchrotron Micro-Laue Diffraction, Laue 2007: International workshop on Advanced Laue Diffraction in Frontier Science, Grenoble, France, January 23 – 27, 2007.

  27. V. Bhakhri and R.J. Klassen; “The Depth Dependence of Nanoindentation Creep of Polycrystalline Gold at 300K” presented at the 18th Canadian Materials Science Conference, Montreal PQ, June 2006.

  28. M.L. Suominen Fuller, A. Gerson, S. McIntyre, S. Ramamurthy, R. Klassen, P. King, W. Liu; “3D Micro Laue Diffraction Study of Scratches on Nickel Alloy A600”, Poster presentation at the Canadian Light Source users’ meeting, Saskatoon Sask., November 2005.

  29. J.P. Weiler, J.T. Wood, R.J. Klassen, G. Wang, R. Berkmortel; ”The Effect of Machining the As-Cast Surface of a Die-Cast AM60B Magnesium” presented at the 17th Canadian Materials Science Conference, Vancouver BC, June 2005.

  30. H. Mohammadi, R.J. Klassen, W. Wan; "Crack Propagation in Mechanical Bileaflet Aortic Heart Valves Using the Finite Element Method" to be presented at the Canadian Biomaterials Society meeting, Waterloo ON, May 2005.

  31. V. Bhakhri and R.J. Klassen; "Indentation Creep of P/M Al-Based Particulate-Reinforced Composites Using High-Temperature Micro-Indentation" presented at the 16th Canadian Materials Science Conference, Ottawa ON, June 2004.

  32. R.J. Klassen and V. Bhakhri; "Indentation Creep of a P/M Al-Cu Alloy at Temperatures between 298 and 833K", presented at the 16th Canadian Materials Science Conference, Ottawa ON, June 2004.

  33. J.P. Weiler, J.T. Wood, R.J. Klassen, G. Wang, R. Berkmortel; "Use of Computer-controlled spherical microindentation to determine the stress-strain response of the die cast magnesium alloy AM60B" presented at the Canadian Society of Mechanical Engineers Workshop, London ON, June 2004.

  34. J.P. Weiler, J.T. Wood, R.J. Klassen, G. Wang, R. Berkmortel; "Use of computer-controlled spherical microindentation to determine the stress-strain response of the die cast magnesium alloy AM60B" presented at the 16th Canadian Materials Science Conference, Ottawa ON, June 2004.

  35. J. P. Weiler, R.J. Klassen, J.T. Wood, R. Berkmortel, and G. Wang; "Correlation between mechanical strength and voids in die-cast magnesium" presented at the 15th Canadian Materials Science Conference, Halifax NS, June 2003.

  36. F. Azarmi and R.J. Klassen;"The role of interfacial strength on the creep of particulate reinforced Al-matrix composites at 500oC", presented at the 15th Canadian Materials Science Conference, Halifax NS, June 2003.

  37. B.J. Diak, R.J. Klassen, S. Saimoto; "Instrumented indentation and X-ray line profile recovery studies of swaged polycrystalline 99.999% Cu between 300 and 450K", presented at the 15th Canadian Materials Science Conference, Halifax NS, June 2003.

  38. R.N. Saraf and R.J. Klassen; "Effect of Cu on the creep behaviour of Al-alloy based MMCs made by the P/M technique" Presented at the METSOC-2002 Annual Conference of the Canadian Institute of Metals, Montreal PQ, Aug. 2002.

  39. F. Azarmi and R.J. Klassen; "Creep behaviour of Al-SiO2 and Al-NiAl Composite material" Poster presentation at the METSOC-2002 Annual Conference of the Canadian Institute of Metals, Montreal PQ, Sept. 2002.

  40. R.N. Saraf and R.J. Klassen; "Investigation of the thermal creep properties of Al-alloy composites made by the P/M technique" Presented at the 14th Canadian Materials Science Conference, Winnipeg MB, June 2002.

  41. R.J. Klassen, K.T. Conlon, J.T. Wood; "Thermal relaxation of internal strain in two-phase Cu-Nb wire" Presented at the 14th Canadian Materials Science Conference, Winnipeg MB, June 2002.

  42. R.J. Klassen, K.T. Conlon, J.T. Wood; "Thermal relaxation of Internal Strain in Cu-18wt% Nb Two-Phase Wire" Presented at the 3rd International Conference of Composites, Lake Louise Alta, Oct. 2001.

  43. R.N. Saraf and R.J. Klassen; "Investigation of the thermal creep properties of Al-alloy composites made by the P/M technique" Presented at the METSOC-2001 Annual Conference of the Canadian Institute of Metals, Toronto ON, Aug. 2001.

  44. R.J. Klassen and S.G. Roberts; "Indentation creep of copper under constant load and constant average stress conditions", Presented at the 11th Canadian Materials Science Conference, Kingston ON, June 1999.

  45. N. Christodoulou, R.J. Klassen, C.N. Tome, N. Badie, R.G. Sauve; "Analyzing the creep of polycrystalline aggregates using a self-consistent model" Presented at the 9th Canadian Materials Science Conference, Montreal PQ, June 1997.

  46. R.J. Klassen, M. Griffiths and A.K. MacCormack; "Transient thermal creep of pre-irradiated Zr-2.5Nb pressure tube material at 250 - 300oC" Presented at the 7th Canadian Materials Science Conference, London ON, June 1995.

  47. J.H. Root, T.M. Holden, R.J. Klassen, C. Smallman, B. Maxfield; "Neutron Diffraction Measurements of Residual Stress in Rails" Presented at the International Conference on Rail Quality and Maintenance, Delft, 1992.

  48. R.J. Klassen, B. Ramaswami, G.C. Weatherly; "The fracture properties of constrained ductile interlayers" Presented at the 39th Canadian Metal Physics Conference, Kingston ON, 1989.

  49. R.J. Klassen, B. Ramaswami, G.C. Weatherly; "The fracture properties of constrained ductile interlayers" Presented as a poster at the 27th Annual CIM Conference of Metallurgists, Montreal PQ, 1988.