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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
Source PublicationJOURNAL OF MATERIALS PROCESSING TECHNOLOGY
ISSN0924-0136
Volume246Pages:205-210
AbstractA1-5Ti-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.
description.department[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
KeywordGrain Refinement Microstructure Master Alloy
Subject AreaEngineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [51501207, 51471173]; Natural Science Foundation of Liaoning Province [201501043]; China's Manned Space Station Project [TQJZ800-2-RW024]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78033
Collection中国科学院金属研究所
Corresponding AuthorZhao, JZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Recommended Citation
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.
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