217 Fe-Mn-Si-Al系SMA/TWIP鋼の開発(金属基複合材料)

概要

論文の詳細を見る
This paper concerns a newly developed Fe-Mn-Si-Al shape memory alloy (SMA) with a high ductility. We investigated the shape memory effect and the ductility of Fe-30Mn-(6-x)Si-xAl (x=0, 1, 2 and 3, mass-%) alloys. For x=0, the composition is consistent with that of the well known SMA of Fe-30Mn-6Si, while, for x=2 and 3 the alloys are nothing else but so-called TWIP steels, which are reported to show high ductility as much as 70% and 90%, respectively. It was found that the shape memory effect of the alloy containing 1 mass-% Al was not so different from that of Fe-30Mn-6Si SMA. The alloy also exhibits a high ductility like TWIP steels (more than 50%).
社団法人日本機械学会の論文
2006-11-25