Stress corrosion in the gas tungsten arc welded (GTAW) joint of TC4 titanium alloys in NaCl solution-in electrochemical and microstructural aspects
文献类型：期刊论文
| 作者 | Tong, Xiangyu1,2; Xu, Weichen1; Wang, Youqiang2; Wang, Xiutong1; Sand, Wolfgang1,3; Duan, Jizhou1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 61期号:14页码:9638-9656 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-026-12447-y |
| 通讯作者 | Xu, Weichen(w.xu@qdio.ac.cn) |
| 英文摘要 | Titanium alloys are promising materials for marine engineering equipment and infrastructures due to their low density, high strength and excellent corrosion resistance. However, stress corrosion has been regarded as one of the most significant threats for titanium alloys, which may lead to cracking and serious failure. Welding is the most important method for the fabrication and combination of large titanium alloy structures and components, and the stress corrosion susceptibility of the welded joint differs substantially from the base metals. This work investigated the stress corrosion behaviors of the gas tungsten arc welded (GTAW) joint of TC4 titanium alloy by comparing the electrochemical and microstructural characteristics and also the crack propagation behaviors of base metal (BM), heat-affected zone (HAZ) and weld metal (WM). The KISCC value followed the order WM > HAZ > BM. The corrosion resistance assessed via electrochemical impedance spectroscopy (EIS) was the highest at WM and lowest at BM, correlated well with the quality of the passive film assessed by Mott-Schottky measurements. The microstructure has been found to influence the crack propagation in the view of microstructural uniformity and texture strength. The typical equiaxed structure of BM favored the crack propagation, while the typical lamellar structure and the acicular martensite phases in WM inhibited crack propagation and caused deflection of the crack path. |
| WOS关键词 | STAINLESS-STEEL ; BEHAVIOR ; CRACKING ; TI |
| 资助项目 | National Science and Technology Major Project of China ; the Independent Deployment Project of the Institute of Oceanology, Chinese Academy of Sciences[IOCASZZZX106] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001704984900001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204862]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Xu, Weichen |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, State Key Lab Adv Marine Mat, Shandong Key Lab Marine Environm Corros & Biofouli, Qingdao 266071, Peoples R China 2.Qingdao Univ Technol, Sch Mech & Automot Engn, Qingdao 266525, Peoples R China 3.Univ Duisburg Essen, Biofilm Ctr, D-45141 Essen, Germany |
| 推荐引用方式 GB/T 7714 | Tong, Xiangyu,Xu, Weichen,Wang, Youqiang,et al. Stress corrosion in the gas tungsten arc welded (GTAW) joint of TC4 titanium alloys in NaCl solution-in electrochemical and microstructural aspects[J]. JOURNAL OF MATERIALS SCIENCE,2026,61(14):9638-9656. |
| APA | Tong, Xiangyu,Xu, Weichen,Wang, Youqiang,Wang, Xiutong,Sand, Wolfgang,&Duan, Jizhou.(2026).Stress corrosion in the gas tungsten arc welded (GTAW) joint of TC4 titanium alloys in NaCl solution-in electrochemical and microstructural aspects.JOURNAL OF MATERIALS SCIENCE,61(14),9638-9656. |
| MLA | Tong, Xiangyu,et al."Stress corrosion in the gas tungsten arc welded (GTAW) joint of TC4 titanium alloys in NaCl solution-in electrochemical and microstructural aspects".JOURNAL OF MATERIALS SCIENCE 61.14(2026):9638-9656. |
入库方式： OAI收割
来源：海洋研究所
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