| 热处理对轧制态Mg5Gd合金腐蚀行为的影响 |
| |
| 引用本文： | 曹福勇,张婧,李可可,宋光铃. 热处理对轧制态Mg5Gd合金腐蚀行为的影响[J]. 中国有色金属学会会刊, 2021, 31(4): 939-951. DOI: 10.1016/S1003-6326(21)65551-6 |
| |
| 作者姓名： | 曹福勇 张婧 李可可 宋光铃 |
| |
| 作者单位： | 厦门大学材料学院海洋材料腐蚀与防护中心;厦门大学化学化工学院固体表面物理化学国家重点实验室;School of Engineering |
| |
| 基金项目： | financial supports from the National Natural Science Foundation of China (51801168,51731008);Natural Science Foundation of Fujian Province (2018J05093),China;National Environmental Corrosion Platform of China。 |
| |
| 摘 要： | 通过浸泡试验、电化学测试、扫描电化学显微镜和腐蚀形貌分析等手段研究热处理工艺对轧制态Mg5Gd合金在3.5 wt.％NaCl饱和Mg(OH)2溶液中腐蚀行为的影响及机理,以期达到提高镁合金耐蚀性的目的.结果表明:固溶处理能显著降低Mg5Gd合金的腐蚀速率,并且使其腐蚀变均匀,腐蚀坑变浅,这主要归因于固溶处理可以熔解镁基...
|
| 关 键 词： | 镁合金 稀土 耐腐蚀性 显微组织 热处理 |
| 收稿时间： | 2020-04-12 |
Influence of heat treatment on corrosion behavior of hot rolled Mg5Gd alloys |
| |
| Fu-yong CAO,Jing ZHANG,Ke-Ke LI,Guang-Ling SONG. Influence of heat treatment on corrosion behavior of hot rolled Mg5Gd alloys[J]. Transactions of Nonferrous Metals Society of China, 2021, 31(4): 939-951. DOI: 10.1016/S1003-6326(21)65551-6 |
| |
| Authors: | Fu-yong CAO Jing ZHANG Ke-Ke LI Guang-Ling SONG |
| |
| Affiliation: | 1. Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, Xiamen 361005, China;2. State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;3. School of Engineering, The University of Queensland, St. Lucia, Qld 4072, Australia |
| |
| Abstract: | The influence of heat treatment on the corrosion behavior of rolled Mg5Gd alloys in 3.5 wt.% NaCl solution saturated with Mg(OH)2 was characterized by immersion test, electrochemical test, scanning electrochemical microscopy (SECM) and corrosion morphology analysis in order to improve the corrosion resistance of Mg alloys. The results showed that solution treatment reduced the corrosion rate of the Mg5Gd significantly, resulting in relatively uniform corrosion and shallow corrosion cavities due to the dissolution of Cd-containing particles. The following aging process could further decrease the corrosion rate. Precipitation of nano-sized Cd-containing particles did not cause apparent micro-galvanic corrosion, which could be attributed to the formation of a protective corrosion product film fully covering the particles. |
| |
| Keywords: | magnesium alloy rare earth corrosion resistance microstructure heat treatment |
| 本文献已被 维普 ScienceDirect 等数据库收录！ |
|
