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Microstructure Evolution of a Ternary Monotectic Alloy During Directional Solidification
Chen, Shu; Zhao, Jiu-Zhou; Jiang, Hong-Xiang; He, Jie; jzzhao@imr.ac.cn
2015
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume28Issue:3Pages:316-321
AbstractA model was developed to describe the microstructure evolution in a directionally solidified ternary monotectic alloy. The directional solidification experiments were carried out on Al-3Pbl-lSn (wt%) alloys by using a Bridgman apparatus. The microstructure evolution in the directionally solidified sample was calculated. The numerical results agree well with the experimental ones. It is demonstrated that the nucleation of the minority phase droplets occur at two different positions. One corresponds to the liquid liquid decomposition, which occurs in front of the solidification interface. The other is at the liquid/solid interface. The nucleation rate of the minority phase droplets at the liquid/solid interface is significantly higher than at the position in front of the solidification interface. The characteristic of the nucleation process leads to a bimodal size distribution of the minority particles in the directionally solidified sample.
description.department[chen, shu ; zhao, jiu-zhou ; jiang, hong-xiang ; he, jie] chinese acad sci, inst met res, shenyang 110016, peoples r china
KeywordTernary Monotectic Alloy Directional Solidification Modeling
Funding OrganizationNational Natural Science Foundation of China [51471173, 51271185, 51031003]; China Manned Space Engineering
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74988
Collection中国科学院金属研究所
Corresponding Authorjzzhao@imr.ac.cn
Recommended Citation
GB/T 7714
Chen, Shu,Zhao, Jiu-Zhou,Jiang, Hong-Xiang,et al. Microstructure Evolution of a Ternary Monotectic Alloy During Directional Solidification[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2015,28(3):316-321.
APA Chen, Shu,Zhao, Jiu-Zhou,Jiang, Hong-Xiang,He, Jie,&jzzhao@imr.ac.cn.(2015).Microstructure Evolution of a Ternary Monotectic Alloy During Directional Solidification.ACTA METALLURGICA SINICA-ENGLISH LETTERS,28(3),316-321.
MLA Chen, Shu,et al."Microstructure Evolution of a Ternary Monotectic Alloy During Directional Solidification".ACTA METALLURGICA SINICA-ENGLISH LETTERS 28.3(2015):316-321.
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