The effect of rapid solidification and grain size on the transformation temperatures of Cu-Al-Be melt spun alloys

被引：28

作者：

Lara-Rodriguez, G. A.

Gonzalez, G.

Flores-Zuniga, H.

Cortes-Perez, J.

机构：

[1] Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico

[2] Ctr Invest Mat Avanzados SC, Chihuahua 31109, Mexico

[3] Univ Nacl Autonoma Mexico, Ctr Tecnol Aragon, Lab Mecan, Edo De Mexico 57130, Mexico

来源：

MATERIALS CHARACTERIZATION | 2006年 / 57卷 / 03期

关键词：

shape memory alloys; copper alloys; rapid solidification; martensitic transformation;

D O I：

10.1016/j.matchar.2005.12.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper base shape memory alloys were prepared by melt spinning technique at different wheel speed. The study was focused to investigate the effect of rapid solidification and grain size on characteristic M-S, M-f, A(S) and A(f) transformation temperatures. Changes on martensitic transformation temperatures in Cu-11.83 wt.%AI-0.48 wt.%Be melt spun ribbons were observed as grain size is reduced. A linear behavior curve of transformation temperatures as a function of grain size was observed. The transformation hysteresis grows as cooling rate increase. Results of optical microscopy and electrical resistivity were used to associate grain size with transformation temperatures. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：154 / 159

页数：6

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