In-Situ Observation on the Diversified Morphology and Growth Behavior of Al3Ni Phase at the Liquid Al/Solid Ni Interface

被引：9

作者：

Ding, Zongye ^{[1
]}

Hu, Qiaodan ^{[1
]}

Lu, Wenquan ^{[1
]}

Sun, Siyu ^{[1
]}

Xia, Mingxu ^{[1
]}

Li, Jianguo ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2018年 / 49A卷 / 05期

基金：

中国国家自然科学基金;

关键词：

MICROSTRUCTURAL EVOLUTION; SOLDERING REACTION; DIFFUSION COUPLES; DISSOLUTION; ALUMINUM; NICKEL; SOLIDIFICATION; KINETICS; ALLOY; AL/NI;

D O I：

10.1007/s11661-018-4537-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The morphology and growth behavior of Al3Ni in the liquid Al/solid Ni interface were observed through synchrotron radiation. The formation time and mechanism of Al3Ni are connected with saturation of the molten layer. In unsaturated conditions, the growth of columnar Al3Ni formed during solidification governed by the melting of small grains accompanied by the growth of adjacent large grains and coalescence of grains near the tips. Conversely, the scallop-type Al3Ni formed in holding showed annexation of adjacent small grains with its morphology changing from scallop to hemisphere.

引用

页码：1486 / 1491

页数：6

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