Parameter Optimization of Gas Tungsten-Arc Repair Welding Technique in Mg-6Gd-3Y-0.5Zr Alloy
文献类型：期刊论文
| 作者 | Meng, D. H.2,3; Zhou, B.1,4; Wu, D.1; Ma, Y. Q.1; Chen, R. S.1; Li, P. J.2 |
| 刊名 | INTERNATIONAL JOURNAL OF METALCASTING
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 13期号:2页码:345-353 |
| 关键词 | gas tungsten-arc (TIG) repair welding Mg-6Gd-3Y-0 5Zr processing parameters optimization mechanical properties |
| ISSN号 | 1939-5981 |
| DOI | 10.1007/s40962-018-0257-9 |
| 通讯作者 | Meng, D. H.() |
| 英文摘要 | The feasibility of gas tungsten-arc repair welding was studied in Mg-6Gd-3Y-0.5Zr alloy. The processing parameters were optimized by sequential experiments including comparative study to find proper filler material and the type of welding groove by butt welding, and the investigation of influence of preliminary heating, area of repair welding, post-weld heat treatment and thickness of welding plate on the mechanical properties of welded joints. In addition, the analysis of microstructure and tensile properties of Mg-6Gd-3Y-0.5Zr alloy was performed for comparison with welded joints. The results showed that the microstructure in as-cast condition was characterized by equiaxial -Mg and eutectic phase, including Mg-24(Gd,Y)(5) and Mg-5(Gd,Y) phase. The strength was improved greatly after T6 treatment, while the ductility was remarkably decreased. The filler material and the type of welding groove were chosen as Mg-6Gd-3Y-0.5Zr alloy and V-type, respectively. The optimal process parameters of repair welding consisted of preliminary heating, T6 treatment after welding, 4mm-thickness plates and welding area with the diameter of phi 15mm. The tensile strength of welded joints reached the maximum value up to 295MPa, equivalent to 99.7% of base material. |
| 资助项目 | National Science and Technology Major Project of China[2017ZX04014001] ; National Key Research and Development Program of China[2016YFB0301104] ; National Natural Science Foundation of China (NSFC)[51301173] ; National Natural Science Foundation of China (NSFC)[51531002] ; National Natural Science Foundation of China (NSFC)[51601193] ; National Natural Science Foundation of China (NSFC)[51701218] ; National Basic Research Program of China (973 Program)[2013CB632202] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000463755600012 |
| 出版者 | SPRINGER INTERNATIONAL PUBLISHING AG |
| 资助机构 | National Science and Technology Major Project of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; National Basic Research Program of China (973 Program) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/132766]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Meng, D. H. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang, Liaoning, Peoples R China 2.Tsinghua Univ, Dept Mech Engn, Beijing, Peoples R China 3.Beijing Inst Astronaut Syst Engn, Beijing, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, D. H.,Zhou, B.,Wu, D.,et al. Parameter Optimization of Gas Tungsten-Arc Repair Welding Technique in Mg-6Gd-3Y-0.5Zr Alloy[J]. INTERNATIONAL JOURNAL OF METALCASTING,2019,13(2):345-353. |
| APA | Meng, D. H.,Zhou, B.,Wu, D.,Ma, Y. Q.,Chen, R. S.,&Li, P. J..(2019).Parameter Optimization of Gas Tungsten-Arc Repair Welding Technique in Mg-6Gd-3Y-0.5Zr Alloy.INTERNATIONAL JOURNAL OF METALCASTING,13(2),345-353. |
| MLA | Meng, D. H.,et al."Parameter Optimization of Gas Tungsten-Arc Repair Welding Technique in Mg-6Gd-3Y-0.5Zr Alloy".INTERNATIONAL JOURNAL OF METALCASTING 13.2(2019):345-353. |
入库方式： OAI收割
来源：金属研究所
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