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

被引：84

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

页码：812 / 815

页数：4

共 19 条

[1] Effect of aging on the superelastic response of a single crystalline FeNiCoAlTa shape memory alloy [J].