Effect of carbon content on shape memory effect of Fe-Mn-Si-Cr-Ni-based alloys at different deformation temperatures

被引：36

作者：

Chen, J. ^{[1
]}

Peng, H. B. ^{[1
]}

Yang, Q. ^{[1
]}

Wang, S. L. ^{[2
]}

Song, F. ^{[1
]}

Wen, Y. H. ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mfg Sci & Engn, Chengdu 610065, Peoples R China

[2] Sichuan Univ, Analyt & Testing Ctr, Chengdu 610065, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 677卷

基金：

中国国家自然科学基金;

关键词：

Carbon content; Deformation temperature; Shape memory effect; Stress-induced epsilon martensite; Permanent slip; IMPROVEMENT; TRANSFORMATION; MECHANISM; MARTENSITE; ADDITIONS; NITROGEN; STRESS; GAMMA;

D O I：

10.1016/j.msea.2016.09.006

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To clarify the effect of C addition on shape memory effect (SME) in Fe-Mn-Si-based alloys, the SME and microstructures of two Fe-Mn-Si-Cr-Ni alloys with different C contents had been studied after deformed between 293 K and 77 K. The results showed that the SME in the Fe-Mn-Si-based alloys can be significantly enhanced by the addition of more C when deformed at a proper temperature. A comparable recovery strain of 4.2% to that in the Fe-Mn-Si-based alloys subjected to special treatments was obtained in a solution treated Fe-16.99Mn-5.59Si-9.28Cr-5.67Ni-0.12 C alloy when deformed at 77 K. This significant improvement can be ascribed to the remarkably increased difference between the critical stress for the permanent slip and that for the stress-induced epsilon martensitic transformation due to the addition of more C. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：133 / 139

页数：7

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