Partial martensitic transformation of nanocrystalline NiAl intermetallic during mechanical alloying

被引：18

作者：

Mashreghi, A. ^{[1
]}

Moshksar, M. M. ^{[1
]}

机构：

[1] Shiraz Univ, Sch Engn, Dept Mat Sci & Engn, Shiraz 7134851154, Iran

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 482卷 / 1-2期

关键词：

Intermetallics; Mechanical alloying; X-ray diffraction; AL;

D O I：

10.1016/j.jallcom.2009.03.156

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：

Nanocrystalline NiAl intermetallic powders were synthesized by mechanical alloying (MA) in a planetary ball mill. Microstructural characterization was accomplished using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The nanocrystalline NiAl powders were formed by a gradual exothermic reaction mechanism during MA. Prolonged milling resulted in partial martensitic transformation of B2-NiAl to tetragonal L1(0)-NiAl structure. It is believed that the martensitic transformation is induced by mechanical stress during MA. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：196 / 198

页数：3

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