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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
ISSN0924-0136
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.
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