| Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming | |
| Xie, Zong-Yao1; Tian, Yan1; Li, Qian1; Zhou, Jian-Cheng2; Meng, Yi1 | |
| Corresponding Author | Meng, Yi(mengyi@cqu.edu.cn) |
| 2019-04-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
 |
| ISSN | 0268-3768 |
| Volume | 101Issue:5-8Pages:1807-1819 |
| Abstract | Thixoforming experiments of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample were carried out on a hydraulic press at different temperatures under different forming loads. Metallographic analysis, Vickers hardness test, and tensile tests were conducted to investigate the microstructure and mechanical properties of the samples formed under different forming parameters. Samples without macro- and micro-defects formed successfully at 580 degrees C under different forming loads were attributed to the excellent formability of semisolid slurry with homogeneous globular microstructure. Because solid and liquid phases in the semisolid slurries exhibited different forming behaviors during thixoforming, liquid segregation occurred and resulted in the inhomogeneous microstructural distribution in thixoformed samples. Owing to the different crystal structures of -Mg and (Mg, Zn)(3)RE eutectic compounds transformed from liquid phase, their volume fraction, morphologies, and distributions affected the mechanical properties of the thixoformed samples significantly. Neither formability of semisolid slurry nor the microstructure of thixoformed sample was affected significantly by the forming load. Higher values of Vickers hardness measured in the bottom regions of the sample formed under higher forming loads were attributed to the higher residual stress caused by the excess forming energy. |
| Keyword | Thixoforming Mg-RE alloy Semisolid forming Mechanical properties |
| Funding Organization | National Natural Science Foundation of China ; Chongqing Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Venture & Innovation Support Program for Chongqing Overseas Returnees |
| DOI | 10.1007/s00170-018-3114-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51605055] ; Chongqing Natural Science Foundation[cstc2016jcyjA1027] ; Fundamental Research Funds for the Central Universities[0903005203307] ; Venture & Innovation Support Program for Chongqing Overseas Returnees |
| WOS Research Area | Automation & Control Systems ; Engineering |
| WOS Subject | Automation & Control Systems ; Engineering, Manufacturing |
| WOS ID | WOS:000463240400053 |
| Publisher | SPRINGER LONDON LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132737 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Meng, Yi |
| Affiliation | 1.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Xie, Zong-Yao,Tian, Yan,Li, Qian,et al. Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2019,101(5-8):1807-1819. |
| APA | Xie, Zong-Yao,Tian, Yan,Li, Qian,Zhou, Jian-Cheng,&Meng, Yi.(2019).Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,101(5-8),1807-1819. |
| MLA | Xie, Zong-Yao,et al."Effects of forming parameters on microstructure and mechanical properties of a cup-shaped Mg-8.20Gd-4.48Y-3.34Zn-0.36Zr alloy sample manufactured by thixoforming".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 101.5-8(2019):1807-1819. |
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