Revealing the Heterogeneous Nucleation and Growth Behaviour of Grains in Inoculated Aluminium Alloys During Solidification

被引：1
|
作者：
Xu, Yijiang [1 ]
Casari, Daniele [2 ]
Mathiesen, Ragnvald H. [2 ]
Li, Yanjun [1 ]
机构：
[1] Norwegian Univ Sci & Technol NTNU, Dept Mat Sci & Engn, N-7491 Trondheim, Norway
[2] Norwegian Univ Sci & Technol NTNU, Dept Phys, N-7491 Trondheim, Norway
来源：
TMS 2019 148TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS | 2019年
关键词：
Heterogeneous nucleation; Grain growth; Solidification; Aluminium alloy; IN-SITU; MICROSTRUCTURE FORMATION; EQUIAXED TRANSITION; AL-ALLOYS; REFINEMENT; MODEL; SIZE; PREDICTION; MECHANISMS; KINETICS;
D O I：
10.1007/978-3-030-05861-6_154
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An in situ X-ray radiographic study on the grain nucleation and grain growth of inoculated Al-10Cu and Al-20Cu alloys during isothermal melt solidification and directional solidification conditions with constant cooling rates has been carried out. The influence of additional level of inoculation particles, cooling rates, and temperature gradient on the nucleation rate and growth kinetics of grains have been quantitatively studied. The deterministic nature of the heterogeneous nucleation of aluminium grain on inoculant particles is revealed. Numerical microstructure models have been developed to simulate the nucleation and growth behavior of aluminum grains and a good agreement between the experimental results and simulation results have been achieved.
引用
收藏
页码：1665 / 1675
页数：11
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