Characterization of the shape memory properties of a Ni45.3Ti39.7Hf10Pd5 alloy

被引：39
作者：
Acar, E. [1 ,4 ]
Karaca, H. E. [1 ]
Tobe, H. [1 ]
Noebe, R. D. [2 ]
Chumlyakov, Y. I. [3 ]
机构：
[1] Univ Kentucky, Dept Mech Engn, Lexington, KY 40506 USA
[2] NASA, Glenn Res Ctr, Struct & Mat Div, Cleveland, OH 44135 USA
[3] Tomsk State Univ, Siberian Phys Tech Inst, Tomsk 634050, Russia
[4] Erciyes Univ, TR-38039 Kayseri, Turkey
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 578卷
关键词：
NiTiHfPd alloys; Microstructure; TWSME; High work output; High strength SMAs; Shape memory alloys; NITIHFPD SINGLE-CRYSTALS; INDUCED MARTENSITIC-TRANSFORMATION; COMPRESSIVE RESPONSE; ELECTRON-MICROSCOPY; BEHAVIOR; STRENGTH; SUBSTRUCTURE;
D O I：
10.1016/j.jallcom.2013.06.030
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The load-biased shape memory and superelastic responses of a Ni45.3Ti39.7Hf10Pd5 polycrystalline alloy were investigated in compression. Transformation strain of up to 4.6% and work output of up to 29 J cm(-3) were determined from load-biased thermal cycling experiments. The alloy showed good superelastic behavior at 90 degrees C with recoverable strain of over 4%. It was also determined that the Ni45.3Ti39.7Hf10Pd5 alloy could develop two-way shape memory strain of 1.6% without an intense training process. Transmission electron microscopy (TEM) revealed that the internal twins formed in the martensite variants were < 0 1 1 > type II twins. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：297 / 302
页数：6
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