Microstructure and grain refining efficiency of Al-5Ti-1B master alloys prepared by halide salt route

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	Microstructure and grain refining efficiency of Al-5Ti-1B master alloys prepared by halide salt route
	Zhang, Lili; Jiang, Hongxiang; Zhao, Jiuzhou; He, Jie; Zhao, JZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
	2017-08-01
发表期刊	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN	0924-0136
卷号	246 页码:205-210
摘要	A1-5Ti-1B master alloys were prepared by reacting K2TiF6 and KBF4 salts with Al melt. During the reaction period between the fluoride salts and Al melt, the non-homogenous distribution of solutes B and Ti in the Al melt close to the salts/Al melt interface causes the formation of the unstable AIB(2) phase. The AIB(2) phase transforms to TiB2 particles by the diffusion of solutes Ti and B in the Al melt during the afterward holding temperature period, which causes an increase both in the number density of TiB2 particles and in the grain refining efficiency of the master alloys. After the transformation of AIB(2) phase to TiB2 phase, TiB2 particles coarsen by Ostwald ripening, which leads to a decrease both in the number density of TiB2 particles and in the grain refining efficiency of the master alloys. (C) 2017 Published by Elsevier B.V.; A1-5Ti-1B master alloys were prepared by reacting K2TiF6 and KBF4 salts with Al melt. During the reaction period between the fluoride salts and Al melt, the non-homogenous distribution of solutes B and Ti in the Al melt close to the salts/Al melt interface causes the formation of the unstable AIB(2) phase. The AIB(2) phase transforms to TiB2 particles by the diffusion of solutes Ti and B in the Al melt during the afterward holding temperature period, which causes an increase both in the number density of TiB2 particles and in the grain refining efficiency of the master alloys. After the transformation of AIB(2) phase to TiB2 phase, TiB2 particles coarsen by Ostwald ripening, which leads to a decrease both in the number density of TiB2 particles and in the grain refining efficiency of the master alloys. (C) 2017 Published by Elsevier B.V.
部门归属	[zhang, lili ; jiang, hongxiang ; zhao, jiuzhou ; he, jie] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [zhang, lili ; zhao, jiuzhou] univ chinese acad sci, shenyang 110016, peoples r china
关键词	Grain Refinement Microstructure Master Alloy
学科领域	Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
资助者	National Natural Science Foundation of China [51501207, 51471173]; Natural Science Foundation of Liaoning Province [201501043]; China's Manned Space Station Project [TQJZ800-2-RW024]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78033
专题	中国科学院金属研究所
通讯作者	Zhao, JZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Lili,Jiang, Hongxiang,Zhao, Jiuzhou,et al. Microstructure and grain refining efficiency of Al-5Ti-1B master alloys prepared by halide salt route[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2017,246:205-210.
APA	Zhang, Lili,Jiang, Hongxiang,Zhao, Jiuzhou,He, Jie,&Zhao, JZ .(2017).Microstructure and grain refining efficiency of Al-5Ti-1B master alloys prepared by halide salt route.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,246,205-210.
MLA	Zhang, Lili,et al."Microstructure and grain refining efficiency of Al-5Ti-1B master alloys prepared by halide salt route".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 246(2017):205-210.