Optimization of shape-memory effect in Fe-Mn-Si-Cr-Re shape-memory alloys
Journal
Journal of Materials Engineering and Performance
Journal Volume
23
Journal Issue
7
Pages
2327-2332
Date Issued
2014
Author(s)
Abstract
Fe-Mn-Si-Cr-based shape-memory alloys have excellent properties of formability, shape-memory effect, and low cost. These properties make Fe-Mn-Si-Cr SMAs ideal candidates for the application of pipe coupling and fish plates. In this study, we add slight Rhenium (Re, 0.05-0.3 wt.%) to Fe-30Mn-6Si-5Cr alloys to improve their shape-memory effect. The martensitic transformation, crystal structure, and aging precipitate of the Fe-30Mn-6Si-5Cr-Re alloys are analyzed. The optimization of shape-memory performance of Fe-30Mn-6Si-5Cr-Re alloys can be achieved efficiently by the proper combined treatments of pre-strain, aging, and shape-memory training. © 2014 ASM International.
SDGs
Publisher
Springer New York LLC
Type
journal article