M. Shehryar Khan

NSERC Scholar & PhD Candidate

Contact Information


Department of Mechanical and Mechatronics Engineering
University of Waterloo
200 University Avenue West
Waterloo, Ontario N2L 3G1

Phone: (519) 888-4567, x33326

Office: E3-3110
Email:  shehryar.khan@uwaterloo.ca

Biographical Information

Shehryar is an NSERC Scholar and senior PhD Candidate working as a mechanical engineer and a materials scientist in the field of advanced materials processing, specifically related to welding, joining, and cladding applications. His research focus is on the advanced processing of different types of pure metals and metallic alloys, and his research expertise is in advanced materials characterization, advanced mechanical testing and failure analysis, with a strong foundation in materials processing (i.e., coating techniques, heat treatment, laser welding, laser cladding, arc and laser brazing, and laser-arc hybrid brazing). He completed his Honors BASc in Mechanical Engineering (Welding and Joining Specialization) with a Minor in Economics with Distinction at the University of Waterloo. He started his graduate program at CAMJ as a MASc student but was transferred directly to a Ph.D. in 2019.

During his time as a graduate student, Shehryar has published several peer-reviewed journal papers, has an international patent to his name, and has given numerous technical presentations at the institutional, national and international levels. Shehryar holds the prestigious NSERC Postgraduate Scholarship and has won many awards and scholarships including the Nanofellowship Award, the Paul Niessen-Teck Award, and several Engineer of the Future Awards.


  1. Y.-H. Cho, M. Shehryar Khan, A. Midawi, S. Zhang, F. Goodwin, Y.N. Zhou, Effect of gap clearance on the mechanical properties of weld-brazed lap joints, Manufacturing Letters 35 (2023), https://doi.org/10.1016/j.mfglet.2022.11.002

  2. M. Shehryar Khan, Y.-H. Cho, S. Zhang, F. Goodwin, E. Biro, Y.N. Zhou, The effect of zinc coating type on the morphology, joint geometry, and mechanical properties of Si-Bronze weld-brazed thin-gauge automotive steel, Metallurgical and Materials Transactions A 54 (2023), https://doi.org/10.1007/s11661-022-06857-1
  3. A. Ghatei-Kalashami, M. Shehryar Khan, F. Goodwin, Y.N. Zhou, Investigating zinc-assisted liquid metal embrittlement in ferritic and austenitic steels: Correlation between crack susceptibility and failure mechanism, Materials Characterization 195 (2023) 112502. https://doi.org/10.1016/j.matchar.2022.112502.
  4. M. Shehryar Khan, A. Ghatei-Kalashami, X. Wang, E. Biro, Y.N. Zhou, Refining the hierarchical structure of lath martensitic steel by in situ alloying with nickel: morphology, crystallography, and mechanical properties, Journal of Materials Science (2022), https://doi.org/10.1007/s10853-022-07916-z
  5. J. Cheng, G. Song, Z. Zhang, M. Shehryar Khan, X. Dong, L. Liu, Investigating the multiscale effects of a novel post-weld composite processing treatment on minimizing weld softening in AA6061-T6 Al-alloy, Journal of Materials Research and Technology, (2022), https://doi.org/10.1016/j.jmrt.2022.09.020

  6. M. Shehryar Khan, From dropout to Ph.D., Science, 377 6609 (2022) https://www.science.org/doi/pdf/10.1126/science.ade4798

  7. J. Cheng, G. Song, Z. Zhang, M. Shehryar Khan, Z. Liu, L. Liu, Improving heat-affected zone softening of aluminum alloys by in-situ forced cooling and post-weld rolling, Journal of Materials Processing Technology 117639 (2022) https://doi.org/10.1016/j.jmatprotec.2022.117639
  8. Y-H. Cho, M. Shehryar Khan, F. Goodwin, Y.N. Zhou, Effect of torch angle and position on bead geometry and joint strength during arc brazing of thin-gauge dual-phase steel, International Journal of Advanced Manufacturing Technology (2022). https://doi.org/10.1007/s00170-022-09309-7
  9. A. Ghatei-Kalashami, M. Shehryar Khan, M. Lee, Y.N. Zhou, High-temperature phase evolution of the ZnAlMg coating and its effect on mitigating liquid-metal-embrittlement cracking, Acta Materialia 229 (2022). https://doi.org/10.1016/j.actamat.2022.117836
  10. M. Shehryar Khan, P. Enrique, A. Ghatei-Kalashami, J.G. Lopes, N. Schell, J.P. Oliveira, E. Biro, Y.N. Zhou, (2022), The influence of in-situ alloying of electro-spark deposited coatings on the multiscale morphological and mechanical properties of laser welded Al-Si coated 22MnB5, Materials Science and Engineering: A. 839 (2022). https://doi.org/10.1016/j.msea.2022.142830
  11. M. Shehryar Khan, S. Ali, D. Westerbaan, W. Duley, E. Biro, Y.N. Zhou, The effect of laser impingement angle on the optimization of melt pool geometry to improve process stability during high-speed laser welding of thin-gauge automotive steels, Journal of Manufacturing Processes 78 (2022) 242–253. https://doi.org/10.1016/j.jmapro.2022.04.022
  12. M. Shehryar Khan, Y.-H. Cho, M. Alfano, F. Goodwin, E. Biro, Y.N. Zhou, A systematic study on the effect of coating type and surface preparation on the wettability of Si-Bronze brazing filler material on GI and GA- coated DP600, Surface and Coatings Technology 425 (2021) 127735 https://doi.org/10.1016/j.surfcoat.2021.127735
  13. M. Shehryar Khan, M.H. Razmpoosh, A. Macwan, E. Biro, Y. Zhou, Optimizing weld morphology and mechanical properties of laser welded Al-Si coated 22MnB5 by surface application of colloidal graphite, Journal of Materials Processing Technology 293 (2021) 117093. doi.org/10.1016/j.jmatprotec.2021.117093
  14. Y-H Cho, M. Shehryar Khan, B. Klassen, F. Goodwin, & Y. Zhou, Influence of surface treatment on joint strength during MIG brazing of GI and GA coated DP600. (2021) Sheet Metal Welding Conference XIX.
  15. M. Shehryar Khan, D. Westerbaan, W.W. Duley, E. Biro, & Y.N. Zhou, The Impact of Laser Impingement Angle on Process Stability and Weld Geometry During High-Speed Laser Welding of Automotive Steels. (2021) Sheet Metal Welding Conference XIX.
  16. M. Shehryar Khan, E. Biro, A. Macwan, N.Y. Zhou, α-ferrite Suppression during Fiber Laser Welding of Al- Si Coated 22MnB5 Press-Hardened Steel, Welding Journal (2021). DOI: 10.29391/2021.100.018
  17. M. Shehryar Khan, S.I. Shahabad, M. Yavuz, W.W. Duley, E. Biro, Y. Zhou, Numerical modelling and experimental validation of the effect of laser beam defocusing on process optimization during fiber laser welding of automotive press-hardened steels, Journal of Manufacturing Processes 67 (2021) 535–544. https://doi.org/10.1016/j.jmapro.2021.05.006
  18. M.H. Razmpoosh, M. Shehryar Khan, A. Ghatei Kalashami, A. Macwan, E. Biro, N.Y. Zhou, Effects of laser beam defocusing on high-strain-rate tensile behavior of press-hardened Zn-coated 22MnB5 steel welds, Optics and Laser Technology 141 (2021) 107116. doi.org/10.1016/j.optlastec.2021.107116
  19. M. Shehryar Khan, P. Enrique, G. Song, M.I.S.T. Faria, Y. Zhou, Laser-assisted wire cladding using a retrofitted laser welding system, Surface Engineering 37 (2021) doi.org/10.1080/02670844.2020.1820266
  20. M. Shehryar Khan, M.H. Razmpoosh, E. Biro, Y. Zhou, A review on the laser welding of coated 22MnB5 press-hardened steel and its impact on the production of tailor-welded blanks, Science and Technology of Welding and Joining 25 (2020) 447–467. doi.org/10.1080/13621718.2020.1742472
  21. G. Song, S. Zhao, M. Shehryar Khan, J. Chen, M. Yao, Microscale bonding mechanism of Mg alloy and steel welded joint with nanoscale Al-based intermetallic compound interface layers, Materials Today Communications 26 (2021) 101924. https://doi.org/10.1016/j.mtcomm.2020.101924

Research Interests

  • Process development and optimization for Laser Welding, Laser Brazing, MIG Brazing, and Laser-Arc Hybrid Brazing used in the automotive industry
  • Numerical modelling of 3D laser heat sources to simulate laser welding
  • Physical metallurgy
  • Welding metallurgy
  • Advanced materials characterization (specifically for coated advanced high strength steels and Cu-based brazing alloys) using techniques such as digital image correlation, optical and laser microscopy, image analysis, SEM, EBSD, EPMA, XRD, and TEM.
  • Advanced data processing techniques
  • Alloy design and modelling
  • Phase transformation kinetics
  • Diffusion kinetics
  • Advanced mechanical testing of welded and brazed joints for automotive applications

Thesis Supervisor(s)

  • Professor Norman Zhou
  • Professor Elliot Biro

Teaching Experience and Credentials

  • Course Developer & Instructor – GENE 499 (The Wicked Problem of Climate Change) – University of Waterloo | Fall 2022, Winter 2023 |
  • Completed the Certificate in University Teaching offered by the Center for Teaching Excellence and GSPA (Graduate Certificate)
  • Completed the Fundamentals in University Teaching Program offered by the Center for Teaching Excellence (Diploma)
  • Teaching Assistant – ME 115 (Structure & Properties of Materials) – University of Waterloo | Winter 2019, Spring 2019 |
  • Teaching Assistant – Mech72130 (Dynamics) – Conestoga College | Spring 2018, Spring 2019 |
  • Guest Lectures: ME 115, ME 235, ME 535, ME 735
  • Relevant Courses: Industrial Metallurgy, Welding and Joining, Energy Conversion, Machine Design, Intro to Mechanics, Mechanics of Deformable Solids, Manufacturing Processes, Dynamics, Thermodynamics, Differential Equations, Dynamics of Machines, Heat Transfer, Advanced Calculus, Advanced Engineering Mathematics, Mechanical Engineering Design

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