Remarkable improvement of shape memory effect in Fe-Mn-Si based shape memory alloys by producing NbC precipitates

被引：206

作者：

Kajiwara, S ^{[1
]}

Liu, D ^{[1
]}

Kikuchi, T ^{[1
]}

Shinya, N ^{[1
]}

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan

来源：

SCRIPTA MATERIALIA | 2001年 / 44卷 / 12期

关键词：

shape memory; martensite; aging carbide; iron-based alloy;

D O I：

10.1016/S1359-6462(01)00978-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of adding small amounts of Nb and C elements to the current Fe-Mn-Si based shape memory alloys was investigated. The shape memory effect in the aged samples was measured by bending and extension tests. Transmission electron microscopy (TEM) was performed to identify NbC precipitates. The addition of Nb and C was found to improve the shape memory effect. The key point of the alloy modification is to produce very small NbC carbide precipitates in austenite by aging.

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收藏

页码：2809 / 2814

页数：6

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