Shape memory effect in FeMnNiAl iron-based shape memory alloy

SCRIPTA MATERIALIA

卷:169

Article

Abuzaid, Wael¹  Sehitoglu, Huseyin² 

[1] Amer Univ Sharjah, Mat Sci & Engn Res Inst, Dept Mech Engn, POB 26666, Sharjah, U Arab Emirates

[2] Univ Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA

关键词: Fe-based shape memory alloy;    FeMnNiAl;    Shape memory effect;    Grain orientation;    Martensite transformation;   

DOI  :  10.1016/j.scriptamat.2019.05.006

来源: Elsevier

【 摘 要 】

The development of Iron-based shape memory alloys holds significant promises for cost-sensitive applications. FeMnNiAl has been attracting increasing interest due to high levels of superelasticity across a wide range of temperatures (-196-300 degrees C). However, shape memory effect for this alloy system has not been demonstrated. In this study, the effect of aging treatments in inducing either shape memory or superelasticity is investigated. Shape memory strains of approximate to 4.5% are reported for polycrystalline FeMn34Ni75Al13.5 (at.%). The observation of shape memory effect and the magnitude of recovery strains were dependent on aging conditions, crystal orientation, and deformation temperature. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free