| Parameter Optimization of Gas Tungsten-Arc Repair Welding Technique in Mg-6Gd-3Y-0.5Zr Alloy | |
| Meng, D. H.1,2; Zhou, B.3,4; Wu, D.3; Ma, Y. Q.3; Chen, R. S.3; Li, P. J.1 | |
| Corresponding Author | Meng, D. H.() |
| 2019-04-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF METALCASTING
 |
| ISSN | 1939-5981 |
| Volume | 13Issue:2Pages:345-353 |
| Abstract | 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. |
| Keyword | gas tungsten-arc (TIG) repair welding Mg-6Gd-3Y-0 5Zr processing parameters optimization mechanical properties |
| Funding Organization | 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) |
| DOI | 10.1007/s40962-018-0257-9 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000463755600012 |
| Publisher | SPRINGER INTERNATIONAL PUBLISHING AG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132767 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Meng, D. H. |
| Affiliation | 1.Tsinghua Univ, Dept Mech Engn, Beijing, Peoples R China 2.Beijing Inst Astronaut Syst Engn, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, Shenyang, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Anhui, Peoples R China |
| Recommended Citation 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. |
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