The role of microstructure on corrosion fatigue behavior of thick-plate Ti-6Al-4V joint via vacuum electron beam welding
文献类型：期刊论文
| 作者 | Zeng, C. Y.1; Zhang, Y. P.1; Hu, J. L.1; Hou, B.1; Wang, H. Y.1; Dong, Ch L.1; Zhou, Y.2 |
| 刊名 | VACUUM
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 182页码:16 |
| ISSN号 | 0042-207X |
| 关键词 | Titanium alloy Electron beam welding Corrosion fatigue behavior Microstructure Crack growth |
| DOI | 10.1016/j.vacuum.2020.109714 |
| 通讯作者 | Zhang, Y. P.(zhangyp@gwi.gd.cn) ; Dong, Ch L.(dongchl@gwi.gd.cn) |
| 英文摘要 | The microstructure and corrosion fatigue behavior under artificial seawater environment of 100-mm-thick Ti-6Al-4V alloy joint via vacuum electron beam welding (EBW) was systematically characterized. Obvious microstructural heterogeneity along the transverse direction of as-welded joint was observed. Bimodal-phases microstructure of granular alpha colonies and beta strips compose the microstructure of the base metal (BM). While the microstructure of fusion zone (FZ) comprises single-phase acicular alpha/alpha' martensite. Under corrosive environment of artificial seawater, FZ shows a lower growth rate of corrosion fatigue cracking (CFC) than that in the BM. Increasing content of residual gas contamination worsens the resistance against corrosion fatigue of the FZ of Ti-6Al-4V alloy joint. Results of local electrochemical characterization indicates that the FZ shows a better resistance against electrochemical corrosion than that of the BM. It is deduced that the slower growth rate of CFC observed in the FZ originates from the combined effects of the excellent corrosion resistance of martensite microstructure and the obstructions of interfaces of fine alpha/alpha' laths against growth of CFC. Moreover, the growth mechanisms of CFC in the BM and FZ were discussed involving the microstructural heterogeneity of the EBW joint. |
| 资助项目 | National Foundation of China[51405092] ; Foundation of Guangdong Province[2016B070701025] ; Foundation of Guangdong Province[2017A070701026] ; Foundation of Guangdong Province[2018B090904004] ; GDAS's Project of Constructing Domestic First-class Research Institutions[2020GDASYL-20200103122] ; GDAS's Project of Constructing Domestic First-class Research Institutions[2019GDASYL-0103075] ; GDAS's Project of Constructing Domestic First-class Research Institutions[No2018GDASCX-0113] ; Project of Panzhihua steel group co. LTD[2014-03] ; Project of Panzhihua steel group co. LTD[2015-10] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000582757100037 |
| 资助机构 | National Foundation of China ; Foundation of Guangdong Province ; GDAS's Project of Constructing Domestic First-class Research Institutions ; Project of Panzhihua steel group co. LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/141164]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Y. P.; Dong, Ch L. |
| 作者单位 | 1.Guangdong Acad Sci, Guangdong Welding Inst, Guangdong Prov Key Lab Adv Welding Technol, Guangzhou 510651, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, C. Y.,Zhang, Y. P.,Hu, J. L.,et al. The role of microstructure on corrosion fatigue behavior of thick-plate Ti-6Al-4V joint via vacuum electron beam welding[J]. VACUUM,2020,182:16. |
| APA | Zeng, C. Y..,Zhang, Y. P..,Hu, J. L..,Hou, B..,Wang, H. Y..,...&Zhou, Y..(2020).The role of microstructure on corrosion fatigue behavior of thick-plate Ti-6Al-4V joint via vacuum electron beam welding.VACUUM,182,16. |
| MLA | Zeng, C. Y.,et al."The role of microstructure on corrosion fatigue behavior of thick-plate Ti-6Al-4V joint via vacuum electron beam welding".VACUUM 182(2020):16. |
入库方式： OAI收割
来源：金属研究所
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