Welding solidification cracking susceptibility and behavior of a Ni-28W-6Cr alloy
文献类型：期刊论文
| 作者 | Chen, SJ; Ye, XX; Tsang, DKL; Jiang, L; Yu, K; Li, CW; Li, ZJ |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 35期号:1页码:29—35 |
| 关键词 | W BASED SUPERALLOY HOT-CRACKING PRECIPITATION BEHAVIOR TENSILE PROPERTIES GRAIN-BOUNDARY STEEL WELDS MICROSTRUCTURE TEMPERATURE ELEMENTS TI |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2018.09.013 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Welding solidification cracking of alloys is associated with the range of solidification temperature that can be greatly affected by the amount of refractory metals and other additives. In this work, solidification cracking of Ni-28W-6Cr alloy with high W content was studied by gas tungsten arc welding, showing that the welding current, alloying elements and precipitates all affect the cracking susceptibility. The lengths of cracks increase linearly with the welding current in the range from 150 to 250A. The relatively high cracking susceptibility is mainly attributed to the high content of Si, which tends to segregate with other elements including W, Cr, Mn as films or components with low melting point in the last solidification stage and weaken the binding force of grain boundaries. Moreover, the existence of precipitated continuous eutectic M6C carbides in the grain boundaries also acts as nucleation sites of crack initiation, and the cracks often propagate along solidification grain boundary. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31901]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | Chinese Acad Sci, Shanghai Inst Appl Phys, Ctr Thorium Molten Salts Reactor Syst, Shanghai 201800, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, SJ,Ye, XX,Tsang, DKL,et al. Welding solidification cracking susceptibility and behavior of a Ni-28W-6Cr alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(1):29—35. |
| APA | Chen, SJ.,Ye, XX.,Tsang, DKL.,Jiang, L.,Yu, K.,...&Li, ZJ.(2019).Welding solidification cracking susceptibility and behavior of a Ni-28W-6Cr alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(1),29—35. |
| MLA | Chen, SJ,et al."Welding solidification cracking susceptibility and behavior of a Ni-28W-6Cr alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.1(2019):29—35. |
入库方式： OAI收割
来源：上海应用物理研究所
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