Thesis Defense – Yashar M. Sardroudi (MSME)

Yashar Mohammadi Sardroudi – MSc. in Mechanical Engineering

Prof. Dr. Güney Güven Yapıcı – Advisor

Date: 01.07.2025

Time: 14:00

Location: AB1 412

“Investigation on the Temperature-Dependent Mechanical Behavior of a Dual-Phase TRIP-Assisted Multi-Principal Element Alloy”

Prof. Dr. Güney. Güven Yapıcı, Özyeğin University

Asst. Prof. Dr. Altuğ Başol, Özyeğın University

Asst. Prof. Dr. Mehmet İpekoğlu, Turkish-German University

Abstract:

Multi Principal Element Alloys (MPEAs) are promising for demanding structural applications. Among their key mechanisms, transformation-induced plasticity (TRIP) is particularly relevant under varying temperatures. This work investigates the temperature-dependent TRIP behavior of a heterogeneous high entropy alloy to precipitate a dual-phase microstructure. Mechanical testing at cryogenic, room, and elevated temperatures revealed no transformation in the as-received state, while heat-treated samples showed distinct TRIP effects at lower temperatures due to martensitic transformation and strain hardening. The results highlight the role of microstructural design and processing in tuning phase stability and mechanical performance, offering insight for designing MPEAs suited to extreme environments.

Bio:

Yashar M. Sardroudi received his B.Sc. degree in Mechanical Engineering from the University of Tabriz in 2020. His professional experience includes roles in manufacturing and materials characterization, with a focus on both conventional and advanced processing techniques. His research interests center on heterogeneous Multi Principal Element alloys, including their design, thermo-mechanical processing, and microstructural evaluation.