Low temperature isothermal ageing in shape memory CuAlNi single crystals

被引：10

作者：

Gastien, Rosana ^{[1
]}

Corbellani, Cristina E. ^{[1
]}

Bozzano, Patricia B. ^{[2
]}

Sade, Marcos L. ^{[3
,4
,5
]}

Lovey, Francisco C. ^{[4
,5
]}

机构：

[1] Inst Invest Cient & Tecn Def CITEFA, RA-1603 Buenos Aires, DF, Argentina

[2] Comis Nacl Energia Atom, Ctr Atom Constituyentes, Lab Microscopia Elect, RA-1429 Buenos Aires, DF, Argentina

[3] Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina

[4] Comis Nacl Energia Atom, Ctr Atom Bariloche, Grp Fis Met, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[5] I Balseiro UN Cuyo, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 495卷 / 02期

关键词：

Shape memory alloys; Cu-based alloys; Ageing; Martensitic transformations; MARTENSITIC TRANSFORMATIONS; NI-ALLOY; DEPENDENCE; STRESS; PHASE;

D O I：

10.1016/j.jallcom.2009.10.100

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：

Some CuAlNi alloys can undergo martensitic transformations by cooling or by applying stress from a metastable beta body-centred cubic (bcc) phase These martensitic transformations are responsible for the shape memory and pseudoelastic effects that these alloys present. Low temperature isothermal ageing of this metastable 13 phase can favor the culmination of an ordering process and the decomposition Into stable phases. These two processes can generate changes in both thermally and stress-induced martensitic transformations, modifying the characteristic martensitic transformation temperatures, the type of induced martensitic phases, the critical stress and the hysteresis width of the martensitic transformations (C) 2009 Elsevier B.V All rights reserved

引用

页码：428 / 431

页数：4

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