Thermoelastic martensitic transformation and superelasticity in Fe-Ni-Co-Al-Nb-B polycrystalline alloy

被引：81
作者：
Omori, T. [1 ]
Abe, S. [1 ]
Tanaka, Y. [1 ]
Lee, D. Y. [1 ]
Ishida, K. [1 ]
Kainuma, R. [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan
来源：
SCRIPTA MATERIALIA | 2013年 / 69卷 / 11-12期
关键词：
Martensitic phase transformations; Shape memory alloys (SMAs); Iron alloys; Precipitation; Superelastic alloys; SHAPE-MEMORY ALLOY; PRECIPITATION;
D O I：
10.1016/j.scriptamat.2013.09.006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of the addition of Nb and B on grain boundary precipitation, martensitic transformation and superelasticity were investigated in the Fe-Ni-Co-Al alloys. The addition of Nb increases the hardness and the martensitic transformation changes from non-thermoelastic to thermoelastic, while the addition of B is effective for suppressing the formation of brittle grain boundary precipitates. By the recrystallization texture developed by 98.5% cold-rolling and annealing, high ductility and superelasticity with 5% recoverable strain were realized in the Fe-28Ni-17Co-10.5Al-2.5Nb-0.05B polycrystalline alloy. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：812 / 815
页数：4
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