Microstructure and Phase Transformation Analysis of Ni50-xTi50Lax Shape Memory Alloys

被引：10

作者：

Li, Weiya ^{[1
]}

Zhao, Chunwang ^{[2
]}

机构：

[1] Inner Mongolia Univ Technol, Coll Sci, Hohhot 010051, Peoples R China

[2] Shanghai Maritime Univ, Coll Arts & Sci, Shanghai 201306, Peoples R China

来源：

CRYSTALS | 2018年 / 8卷 / 09期

基金：

中国国家自然科学基金;

关键词：

martensitic transformation; microstructure; Ni-Ti-La; MARTENSITIC-TRANSFORMATION; TI-NI; AT.PERCENT NI; BEHAVIOR; DIAGRAM;

D O I：

10.3390/cryst8090345

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The microstructure and martensitic transformation behavior of Ni50-xTi50Lax (x = 0.1, 0.3, 0.5, 0.7) shape memory alloys were investigated experimentally. Results show that the microstructure of Ni50-xTi50Lax alloys consists of a near-equiatomic TiNi matrix, LaNi precipitates, and Ti2Ni precipitates. With increasing La content, the amounts of LaNi and Ti2Ni precipitates demonstrate an increasing tendency. The martensitic transformation start temperature increases gradually with increasing La content. The Ni content is mainly responsible for the change in martensite transformation behavior in Ni50-xTi50Lax alloys.

引用

页数：8

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