Improvement of shape memory effect via strengthening austenite by virtue of thermally activated process in FCC-type metastable multicomponent alloys

被引：6

作者：

Nie, Yong ^{[1
,2
]}

Peng, Huabei ^{[3
]}

Yong, Liqiu ^{[3
]}

Wang, Dian ^{[3
]}

Zhang, Chengyan ^{[3
]}

Wang, Shanling ^{[4
]}

Wen, Yuhua ^{[3
]}

机构：

[1] Sichuan Univ, West China Med Sch, West China Hosp, Dept Orthoped Surg, Chengdu 610065, Peoples R China

[2] Sichuan Univ, West China Med Sch, West China Hosp, Natl Clin Res Ctr Geriatr, Chengdu 610065, Peoples R China

[3] Sichuan Univ, Sch Mech Engn, Chengdu 610065, Peoples R China

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2020年 / 793卷

基金：

中国国家自然科学基金;

关键词：

Thermally activated process; Martensitic transformation; Cryogenic deformation; Shape memory alloys; Multicomponent alloys; HIGH-ENTROPY ALLOYS; STRAIN-RATE SENSITIVITY; MARTENSITIC-TRANSFORMATION; TEMPERATURE-DEPENDENCE; EPSILON-MARTENSITE; BEHAVIOR; STRESS; EVOLUTION; NITROGEN; STEELS;

D O I：

10.1016/j.msea.2020.139748

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

FCC-type multicomponent alloys exhibit exceptional high strength during cryogenic deformation owing to thermally activated process. Inspired by this, we proposed that the gamma-austenite of Fe-Mn-Cr-Si-Ni metastable multicomponent alloys would be strengthened by taking advantage of thermally activated process, and their shape memory effect would be improved by means of cryogenic deformation. As expected, the shape memory effect of Fe54.6Mn20.7Cr9.4Si10.5Ni4.8 metastable multicomponent alloy was enhanced by the cryogenic deformation of 77 K because gamma-austenite was drastically strengthened by the remarkable increment of thermally activated stress. However, the shape memory effect of Fe61.6Mn14.2Cr8.8Si10.5Ni4.9 and Fe57.3Mn18.0Cr9.4Si10.5Ni4.8 metastable multicomponent alloys was not improved by cryogenic deformation. It is ascribed to that the occurrence of epsilon -> alpha' martensitic transformation would deteriorate the shape memory effect and thus weakened the positive effect of thermally activated process. It should be an effective way to improve the shape memory effect of other metastable multicomponent alloys by virtue of thermally activated process.

引用

页数：11

共 46 条

[1] Thermally activated dislocation dynamics in austenitic FeMnC steels at low homologous temperature [J].

Allain, S. ;

Bouaziz, O. ;

Chateau, J. P. .

SCRIPTA MATERIALIA, 2010, 62 (07) :500-503

[2]

[Anonymous], 2011, X-Ray Diffraction Crystallography Introduction, Examples and Solved Problems

[3] Improvement of shape memory properties of NbC containing Fe-Mn-Si based shape memory alloys by simple thermomechanical treatments [J].

Baruj, A ;

Kikuchi, T ;

Kajiwara, S ;

Shinya, N .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 378 (1-2) :333-336

[4] Temperature dependence of critical stress and pseudoelasticity in a Fe-Mn-Si-Cr pre-rolled alloy [J].

Baruj, A. ;

Bertolino, G. ;

Troiani, H. E. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 502 (01) :54-58

[5] NITROGEN STRENGTHENING OF A STABLE AUSTENITIC STAINLESS-STEEL [J].

BYRNES, MLG ;

GRUJICIC, M ;

OWEN, WS .

ACTA METALLURGICA, 1987, 35 (07) :1853-1862

[6] Microstructural development in equiatomic multicomponent alloys [J].

Cantor, B ;

Chang, ITH ;

Knight, P ;

Vincent, AJB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 375 :213-218

[7] Remarkable Improvement of Shape Memory Effect in Austenitic Stainless Steel by Thermo-Mechanical Training [J].

Chen, Jie ;

Peng, Huabei ;

Wang, Shanling ;

Du, Yangyang ;

Wen, Yuhua .

ADVANCED ENGINEERING MATERIALS, 2015, 17 (03) :330-333

[8] Tuning element distribution, structure and properties by composition in high-entropy alloys [J].

Ding, Qingqing ;

Zhang, Yin ;

Chen, Xiao ;

Fu, Xiaoqian ;

Chen, Dengke ;

Chen, Sijing ;

Gu, Lin ;

Wei, Fei ;

Bei, Hongbin ;

Gao, Yanfei ;

Wen, Minru ;

Li, Jixue ;

Zhang, Ze ;

Zhu, Ting ;

Ritchie, Robert O. ;

Yu, Qian .

NATURE, 2019, 574 (7777) :223-+

[9] INFLUENCE OF THE PRESENCE OF PREEXISTING THERMAL EPSILON-MARTENSITE ON THE FORMATION OF STRESS-INDUCED EPSILON-MARTENSITE AND ON THE SHAPE-MEMORY EFFECT OF A FE-MN-CR-SI-NI SHAPE-MEMORY ALLOY [J].

FEDERZONI, L ;

GUENIN, G .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 31 (01) :25-30

[10] Characterization of phases in an Fe-Mn-Si-Cr-Ni shape memory alloy processed by different thermomechanical methods [J].

Fuster, V. ;

Druker, A. V. ;

Baruj, A. ;

Malarria, J. ;

Bolmaro, R. .

MATERIALS CHARACTERIZATION, 2015, 109 :128-137

← 1 2 3 4 5 →