Effect of In-Situ TiB(2) Particles on the Microstructure of Spray-Formed 70Si-Al Alloy

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	Effect of In-Situ TiB(2) Particles on the Microstructure of Spray-Formed 70Si-Al Alloy
	L. Zhang; G. S. Gan; B. Yang
	2011
发表期刊	Materials Transactions
ISSN	1345-9678
卷号	52 期号:8 页码:1646-1649
摘要	A novel reactive technique has been employed to fabricate 2.0 mass%TiB(2)/70Si-Al composite. The growth behavior of primary Si phase in the 2.0 mass%TiB(2)/70Si-Al composite was investigated when the composite was heated in its semi-solid state. Both theoretical and experimental results have shown that the in-situ TiB(2) particles can refine effectively the primary Si phase and restrain the Si phase growth. The coarsening rate constant of the 2.0 mass%TiB(2)/70Si-Al composite was calculated as 3.69 x 10(-18) m(3)/s, which is less than that of 70Si-Al alloy (7.6 x 10(-17) m(3)/s), suggesting that the in-situ TiB(2) particles can effectively pin the grain boundaries and arrest the migration of liquid film when the composite was heated in its semi-solid state. [doi:10.2320/matertrans.M2011066]
部门归属	[zhang, lei; gan, guisheng; yang, bin] univ sci & technol beijing, state key lab adv met & mat, beijing 100083, peoples r china. [zhang, lei] nanchang hangkong univ, sch aeronaut manufacture engn, nanchang 330063, peoples r china. [yang, bin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;yang, b (reprint author), univ sci & technol beijing, state key lab adv met & mat, beijing 100083, peoples r china;byang@ustb.edu.cn
关键词	70silicon-aluminum Alloy Spray Forming Tib(2) Particles Grain Growth Semisolid State Si-30al
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30890
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Zhang,G. S. Gan,B. Yang. Effect of In-Situ TiB(2) Particles on the Microstructure of Spray-Formed 70Si-Al Alloy[J]. Materials Transactions,2011,52(8):1646-1649.
APA	L. Zhang,G. S. Gan,&B. Yang.(2011).Effect of In-Situ TiB(2) Particles on the Microstructure of Spray-Formed 70Si-Al Alloy.Materials Transactions,52(8),1646-1649.
MLA	L. Zhang,et al."Effect of In-Situ TiB(2) Particles on the Microstructure of Spray-Formed 70Si-Al Alloy".Materials Transactions 52.8(2011):1646-1649.