Study by resonant ultrasound spectroscopy of the elastic constants of the β phase in Cu-Al-Ni shape memory alloys

被引：38

作者：

Recarte, V

Pérez-Landazábal, JI

Nó, ML

San Juan, J

机构：

[1] Univ Publ Navarra, Dept Fis, Pamplona 31006, Spain

[2] Univ Basque Country, Dept Fis Aplicada 2, Fac Ciencias, EHU, E-48080 Bilbao, Spain

[3] Univ Basque Country, Dept Fis Mat Condensada, Fac Ciencias, EHU, E-48080 Bilbao, Spain

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 370卷 / 1-2期

关键词：

resonant ultrasound spectroscopy; shape memory alloys; martensitic transformation;

D O I：

10.1016/j.msea.2003.06.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The evolution with temperature of the elastic constants of the metastable beta phase in a Cu-27.96at.%Al-3.62 at.% Ni shape memory alloy (SMA) has been studied by resonant ultrasound spectroscopy (RUS). The corresponding elastic constants of this cubic phase have been measured near the martensitic transformation temperature in a single crystal. Above the martensitic transformation temperature, an anomalous behavior has been found in the C'elastic constant which shows a softening as the temperature decreases. The internal friction value Q(-1) has been obtained in this temperature range from the RUS spectra. The mechanisms associated with the Q(-1) increase must be related to {110} shear. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：488 / 491

页数：4

共 22 条

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