Dr. Ahmed Alade Tiamiyu, BSc, MSc, PhD

Dr. Ahmed (Tia) Tiamiyu joined the Mechanical and Manufacturing Engineering department at the University of Calgary as an Assistant Professor in September 2021. Before then, Dr. Tia was a Postdoctoral Fellow in the Department of Materials Science and Engineering at the Massachusetts Institute of Technology, where he was also a board member of the MIT Postdoctoral Association. He received his doctorate and master's degrees from the University of Saskatchewan with a specialization in materials science, and a bachelor’s degree in metallurgy from the University of Lagos. Dr. Tia is both NSERC Vanier and NSERC PDF scholar. His research focuses on understanding the processing-structure-property-performance relationships in materials with an emphasis on materials synthesis and optimization for improved performance in extreme service conditions. Dr. Tia is currently developing the Materials Processing and Performance (MaPP) Lab at the University of Calgary to pursue different research projects based on his area of specialization.

Research

Areas of Research

Process-texture/structure-property-performance relationships in materials for extreme service conditions

New materials/alloys design-

Traditional and High entropy alloys
Powder metallurgy
- bulk nanograin-stabilized alloys for lightweighting
- ultra-high wear-resistant surface coatings
Additive manufacturing
Crystallographic texture control: tailoring grain orientation in materials to aid desirable properties.

Materials performance-

Microballistics (High-velocity impact of single microparticles)
Mechanical behavior of materials at high strain rates
Corrosion

Participation in university strategic initiatives

Energy innovations for today and tomorrow

Courses

Course number	Course title	Semester
ENME 421	Materials I	Winter 2022

Awards

NSERC Post-doctoral fellowship, Natural Sciences and Engineering Research Council of Canada. 2019
Toyota Automotive Engineering and Safety Scholarship , Toyota . 2019
NSERC Vanier Canada Graduate Scholarship, Natural Sciences and Engineering Research Council of Canada. 2021

Publications

Journal articles

Site-specific study of jetting, bonding, and local deformation during high-velocity metallic microparticle impact. A. A. Tiamiyu, Y. Sun, K. A. Nelson, C A. Schuh . Acta Materialia. 159-169. (2021)
Particle Flattening during Cold Spray: Mechanistic Regimes Revealed by Single Particle Impact Tests. A. A. Tiamiyu and C. A. Schuh . Surface and Coatings Technology. 126386. (2020)
Corrosion behavior of metastable AISI 321 austenitic stainless steel: Investigating the effect of grain size and prior plastic deformation on its degradation pattern in saline media. A. A. Tiamiyu, U. Eduok, J. A. Szpunar, and A. G. Odeshi . Scientific Reports. 12116. (2019)
Effects of Grain Refinement on the Quasi-Static Compressive Behavior of AISI 321 Austenitic Stainless Steel: EBSD, TEM, and XRD Studies. A. A. Tiamiyu, T. Vahid, J. A. Szpunar, A. G. Odeshi, and A. K. Khan . International Journal of Plasticity. 79–99. (2018)
Multiple Strengthening Sources and Adiabatic Shear Banding during High Strain-Rate Deformation of AISI 321 Austenitic Stainless Steel: Effects of Grain Size and Strain Rate. A. A. Tiamiyu, A. G. Odeshi, and J. A. Szpunar . Materials Science and Engineering A. 233–49. (2018)
Nanotwinning-assisted dynamic recrystallization at high strains and strain rates. Ahmed A. Tiamiyu , Edward L. Pang , Xi Chen, James M. LeBeau , Keith A. Nelson , and Christopher A. Schuh. Nature Materials. (2022)

Google scholar citations

In the News

Talking outside the tower. EECS Communication Lab + MIT Libraries. (2021)
Four U of S students awarded prestigious Vanier Scholarships. U of S News. (2017)
Researchers unveil a secret of stronger metals: Study shows what happens when crystalline grains in metals reform at nanometer scales, improving metal properties.. MIT News. (2022)
UCalgary researcher helps solve secret of strengthening metals. (2022)