Effects of thermal cycling on multiple-stage transformation in Ti49.3N50.7 shape memory alloy

被引：13

作者：

Chiang, L. J. ^{[1
]}

Li, C. H. ^{[1
]}

Hsu, Y. F. ^{[2
]}

Wang, W. H. ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 106, Taiwan

[2] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, Taipei 106, Taiwan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 462卷 / 1-2期

关键词：

precipitation; grain boundaries; thermal analysis;

D O I：

10.1016/j.jallcom.2007.07.112

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 effects of thermal cycling on multiple-stage transformation in Ni50.7Ti49.3 alloy were directly studied by DSC and in situ TEM observations. The phase transformations in the grain interior were suppressed during thermal cycling, whereas the regions along grain boundaries retained their original characteristics. According to in situ observations, the heterogeneous precipitates that concentrated along grain boundary areas may account for the different evolutions of transformations during thermal cycling. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：47 / 51

页数：5

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