Continuous Morphological Transition and Its Mechanism of Al3Ni Phase at the Liquid-Solid Interface During Solidification

被引：14

作者：

Ding, Zongye ^{[1
]}

Hu, Qiaodan ^{[1
]}

Lu, Wenquan ^{[1
]}

Zhang, Naifang ^{[1
]}

Ge, Xuan ^{[1
]}

Cao, Sheng ^{[2
]}

Yang, Tianxing ^{[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

[2] Monash Univ, MCAM, Clayton, Vic 3800, Australia

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2019年 / 50A卷 / 02期

基金：

中国国家自然科学基金;

关键词：

MICROSTRUCTURAL EVOLUTION; GROWTH; DISSOLUTION; NICKEL; BEHAVIOR; KINETICS; DRIVEN;

D O I：

10.1007/s11661-018-5059-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The morphological transition and growth mechanism of Al3Ni phase during solidification at the liquid Al/solid Ni interface was investigated through synchrotron radiography. The remelted peritectic Al3Ni is dominated by coalescence of adjacent grains and precipitation with the morphology changing from columnar, irregular, scallop type to faceted shape. The hollow proeutectic Al3Ni is formed on a solid base. The increased r/R ratio and steep variation lead to the change from regular to irregular hollowness with asymmetrical shape.

引用

页码：556 / 561

页数：6

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