| Misorientation dependent thermal condition-solute field cooperative effect on competitive grain growth in the converging case during directional solidification of a nickel-base superalloy | |
| Meng, X. B.1; Li, J. G.2; Jing, C. N.3; Liu, J. D.2; Ma, S. Y.2; Liang, J. J.2; Zhang, C. W.2; Wang, M.2; Tang, B. T.1; Lin, T.4; Chen, J. L.5; Zhang, X. L.6; Li, Q.6 | |
| Corresponding Author | Meng, X. B.(mengxiangbin84@163.com) ; Li, J. G.(jgli@imr.ac.cn) ; Jing, C. N.(jcn@sdjzu.edu.cn) ; Tang, B. T.(tbtsh@hotmail.com) ; Li, Q.(q.li@wfust.edu.cn) |
| 2022-01-10 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 96Pages:151-159 |
| Abstract | Nowadays, thermal condition and solute field are considered as the potential dominant factors controlling competitive grain growth during directional solidification process. However, the controlling modes and critical conditions of competitive grain growth have been drastically debated over the past two decades. In this work, thermal condition and solute field are combined to study the competitive grain growth in the converging case by experimental observation and numerical simulation of bicrystal samples. We find the competitive grain growth is controlled by the cooperative effect of thermal condition and solute field, and the controlling modes are related to the bicrystal misorientation between favorably and unfa-vorably oriented grains. When the unfavorably oriented grain is low misoriented, unfavorably oriented grain dominates grain selection, and the competitive grain growth performs as solute field domination. However, with the increase of unfavorably oriented grain's misorientation, the grain selection converts into favorably oriented grain domination, and the competitive grain growth changes to thermal condition domination. To explain these abnormal transformation phenomena, we propose a misorientation depen-dent thermal condition-solute field cooperative domination model and identify the critical conditions by a critical misorientation (theta(cm)). According to dynamic equation of dendrite growth, we calculate the critical misorientation theta(cm) to prove this model. The theoretical calculation results agree well with the experimental results. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Competitive grain growth Cooperative effect Thermal condition Solute field Critical misorientation Unusual overgrowth Abnormal transformation |
| Funding Organization | Shandong Provincial Natural Science Foundation ; National Natural Science Foundation of China ; Fund of the State Key Laboratory of Solidification Processing in NWPU ; Young Doctors Cooperation Project in Qilu University of Technology ; Key Research and Development Program of Ningxia |
| DOI | 10.1016/j.jmst.2021.02.030 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shandong Provincial Natural Science Foundation[ZR2020ME110] ; National Natural Science Foundation of China[51331005] ; National Natural Science Foundation of China[U1508213] ; National Natural Science Foundation of China[51771190] ; National Natural Science Foundation of China[51601102] ; Fund of the State Key Laboratory of Solidification Processing in NWPU[SKLSP201847] ; Fund of the State Key Laboratory of Solidification Processing in NWPU[SKLSP201834] ; Young Doctors Cooperation Project in Qilu University of Technology[2018BSHZ003] ; Key Research and Development Program of Ningxia[2019BDE03016] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000737281900006 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173813 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Meng, X. B.; Li, J. G.; Jing, C. N.; Tang, B. T.; Li, Q. |
| Affiliation | 1.Qilu Univ Technol, Shandong Acad Sci, Sch Mech & Automot Engn, Jinan 250353, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250014, Peoples R China 4.AECC Shenyang Liming Aeroengine Co LTD, Shenyang 110043, Peoples R China 5.North Minzu Univ, Coll Mat Sci & Engn, Yinchuan 750021, Ningxia, Peoples R China 6.Weifang Univ Sci & Technol, Fac Electromech Informat, Shouguang 262700, Peoples R China |
| Recommended Citation GB/T 7714 | Meng, X. B.,Li, J. G.,Jing, C. N.,et al. Misorientation dependent thermal condition-solute field cooperative effect on competitive grain growth in the converging case during directional solidification of a nickel-base superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,96:151-159. |
| APA | Meng, X. B..,Li, J. G..,Jing, C. N..,Liu, J. D..,Ma, S. Y..,...&Li, Q..(2022).Misorientation dependent thermal condition-solute field cooperative effect on competitive grain growth in the converging case during directional solidification of a nickel-base superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,96,151-159. |
| MLA | Meng, X. B.,et al."Misorientation dependent thermal condition-solute field cooperative effect on competitive grain growth in the converging case during directional solidification of a nickel-base superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 96(2022):151-159. |
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