Powder Based on Nano-crystalline NiTi Produced Using High Energy Ball Milling and Subsequent Heat Treatment

被引：2

作者：

Bozorg, S. F. K. ^{[1
]}

Rabiezadeh, A. ^{[1
]}

机构：

[1] Univ Tehran, Fac Engn, Sch Met & Mat Engn, Tehran, Iran

来源：

INTERNATIONAL CONFERENCE ON ADVANCEMENT OF MATERIALS AND NANOTECHNOLOGY 2007 | 2010年 / 1217卷

关键词：

NiTi; Ball Milling; Nano-crystallites; Amourph; Heat treatment;

D O I：

10.1063/1.3377865

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Planetary ball milling and subsequent heat treatment were employed for the production of nano-crystalline NiTi-based powder from initial Ni and Ti powder mixture with stoichiometric composition of Ni50Ti50. Characterization of the crystal structure of the milled product using X-ray diffractometry, scanning and transmission electron microscopy showed that increasing milling time decreased the particle and crystallite size but increased internal lattice strain. Milled products with nano-crystalline NiTi and amorphous structures were detected which transformed to the dominant B2-NiTi and minor Ni3Ti and NiTi2 crystal structures upon subsequent annealing as detected by X-ray diffraction and differential thermal analysis.

引用

页码：452 / 456

页数：5

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