Influence of the particle size on phase transformation temperatures of Ni-49at.%Ti shape memory alloy powders

被引：0

作者：

Anselmo, George Carlos S. ^{[1
]}

de Castro, Walman B. ^{[1
]}

de Araujo, Carlos Jose ^{[1
]}

机构：

[1] Univ Fed Campina Grande, BR-58429900 Campina Grande, Paraiba, Brazil

来源：

ADVANCED POWDER TECHNOLOGY VII | 2010年 / 660-661卷

关键词：

Powder metallurgy; Shape memory; Ni-Ti alloy;

D O I：

10.4028/www.scientific.net/MSF.660-661.124

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is important to control the martensitic transformation start temperature (Ms) of Ti-Ni alloys because it determines the temperature range over which the shape memory effect and superelasticity appear. Powder metallurgy (PM) is known to provide the possibility of material-saving and automated fabrication of at least semi-finished products as well as net-shape components for NiTi alloys. In this study powder with different particle sizes was subjected by gas atomization. The evolution of the control the martensitic transformation start temperature (Ms) was studied by differential scanning calorimetry. The effect of the particle size of powders on the transformation temperatures behaviors was discussed.

引用

页码：124 / 127

页数：4

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