Concurrent effect of improving pseudoelasticity and shape memory effect on the recovery stress of FeMnSi based SMA

سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 155

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شناسه ملی سند علمی:

IMES16_157

تاریخ نمایه سازی: 25 اسفند 1401

چکیده مقاله:

To investigate the impact of various maximum recovery temperatures on the recovery stress and strain,the recently developed Fe-based shape memory alloy with various thermomechanical and heattreatment conditions was taken into consideration. Based on the competition of favorable grainrefinement, there is a trade-off between pseudoelasticity and the shape memory effect. It was found thatimproving PE sacrifices SME in grain refined specimens, and recovery stress tends to go up with PEimprovement. For As-received aged samples due the non-uniform distribution of precipitates, thestrained specimen tends to reverse back from austenite to martensite during cooling of stress recoverytests.

نویسندگان

Mahbod Golrang

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Hesamodin Khodaverdi

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Maryam Mohri

Empa, Swiss Federal Laboratories for Materials Science and Technology, ۸۶۰۰ Dϋbendorf, Switzerland

Elyas Ghafoori

Institute for Steel Construction, Faculty of Civil Engineering and Geodetic Science, Leibniz University Hannover, ۳۰۱۶۷ Hannover, Germany

Mahmoud Nili Ahmadabadi

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran