Effects of Slight Re Addition on a Fe-25Mn-6Si-5Cr Shape Memory Alloy
Slight amounts of Rhenium (Re) were added into the Fe-25Mn-6Si-5Cr shape memory alloy. The crystal structure, shape memory effect and thermo-mechanical training of these alloys were investigated. Experimental results show that both ε martensite and γ austenite coexist at room temperature for the Fe-25Mn-6Si-5Cr--Re alloys. The Fe- 25Mn-6Si-5Cr-0.13Re alloy exhibit an excellent shape recovery of 95～97％. The 500～700℃ annealing can improve significantly the shape memory performance of Fe- 25Mn-6Si-5Cr--Re alloys. But the as-rolled and 800～900℃ Annealed specimens have a worse shape recovery. Thermo-mechanical training can also effectively raise the alloys shape memory performance. The Fe-25Mn-6Si-5Cr-0.13Re alloy exhibit a more striking efficacy of thermo-mechanical training than the Fe-25Mn-6Si-5Cr alloy.
Fe-Mn-Si-Cr shape memory alloys Rhenium shape memory effect thermo-mechanical training
T.P.Wang H.C.Lin K.M.Lin W.J.Wu P.C.Lo F.H.Chen
Department of Materials Science and Engineering, Feng Chia University, Taichung,Taiwan Department of Materials Science and Engineering, National Taiwan University, Taipei,Taiwan King Yee Chen Enterprise Co.LTD., Yunlin, Taiwan
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）