Formation Mechanisms and Microstructure Characterization of Al/Al3Ni In-situ Composite by Compound Casting

被引：9
|
作者：
Sistaninia, M. [1 ]
Doostmohammadi, H. [1 ]
Raiszadeh, R. [1 ]
机构：
[1] Shahid Bahonar Univ Kerman, Dept Met & Mat Sci, Sch Engn, Jomhoori Eslami Blvd, Kerman, Iran
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2019年 / 50卷 / 06期
关键词：
17;
D O I：
10.1007/s11663-019-01682-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Compound casting method was used to produce an Al/Ni bimetal composite. The mechanisms of formation of the reinforcing intermetallic phases were studied and the produced bimetal composite's microstructure was then characterized. The results showed that the Al/Ni interface consisted of two intermetallic layers including Al3Ni2 and Al3Ni. It is suggested that the Al3Ni reinforcing particles of the composite originated from two sources. (1) Some Al3Ni particles detached from the Al3Ni layer formed at the interface between the Ni core and the Al melt and dispersed in the liquid Al and (2) Al-Al3Ni eutectic phase, which formed during the solidification process. The increase in the temperature led to the formation of more reinforcing particles and extended the depth of dispersion of the particles in the Al matrix. (C) The Minerals, Metals & Materials Society and ASM International 2019
引用
收藏
页码：3020 / 3026
页数：7
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