Production of a nanocrystalline Ni3Al-based alloy using mechanical alloying

被引：20

作者：

Samani, Masoud Nazarian ^{[1
,2
]}

Shokuhfar, Ali ^{[1
]}

Kamali, Ali Reza ^{[2
]}

Hadi, Morteza ^{[2
]}

机构：

[1] KN Toosi Univ Technol, Fac Mech Engn, Tehran, Iran

[2] Malek Ashtar Univ Technol, Dept Mat Sci & Engn, Shahin Shahr, Iran

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 500卷 / 01期

关键词：

Ni3Al-based alloy; Mechanical alloying; Nanostructured materials; Hot pressing; NI3AL INTERMETALLIC COMPOUND; IRON ALUMINIDES; NICKEL; MICROSTRUCTURE; METALLURGY;

D O I：

10.1016/j.jallcom.2009.02.140

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：

A new Ni3Al-based alloy has been successfully made via densification of mechanically alloyed powders with nominal compositions of Ni-8.14Al-7.83Cr-1.45Mo-0.01B (wt%). Mechanical alloying (MA) was carried out in a planetary ball mill under different conditions. The effect of MA on the structure of elemental powders was investigated. A Ni-based solid solution was produced after 10 h of milling that transformed to a disordered Ni3Al intermetallic compound with nanocrystalline structure on further milling. The rate of this transformation depended on milling variables such as mill rotation speed and milling media. The yield strength of produced alloy increased with increasing temperature up to 600 degrees C beyond which it decreased. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：30 / 33

页数：4

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