Surface microstructure modifications and in-vitro corrosion resistance improvement of a WE43 Mg alloy treated by pulsed electron beams
文献类型：期刊论文
| 作者 | Zhang, Xu; Zhang, Kemin; Zou, Jianxin; Yan, Ping; Song, Luxia; Liu, Yingrui |
| 刊名 | VACUUM
 |
| 出版日期 | 2020 |
| 卷号 | 173 |
| 关键词 | 316L STAINLESS-STEEL Y-ZR ALLOY MECHANICAL-PROPERTIES MAGNESIUM BEHAVIOR EVOLUTION GD OXIDATION ND RE |
| DOI | 10.1016/j.vacuum.2019.109132 |
| 英文摘要 | In the present study, the surface microstructures and in-vitro corrosion resistance of an as-cast WE43 Mg alloy after high current pulsed electron beam (HCPEB) treatments are investigated. It is shown that the surface presents craters and wavy morphology after HCPEB treatments, which are the typical characteristics of the morphology after rapid melting and cooling. The initially existed Mg14Nd2(Y,Gd) particles are dissolved, and the fine beta' (c-bco, a = 0.64 nm, b = 2.223 nm and c = 0.521 nm) precipitates are formed and homogeneously dispersed in the treated layer. The electrochemical measurements in the simulated body fluid (SBF) show that the corrosion current density (I-corr) of the 15 pulsed sample (2.66 x 10(-5) A cm(-2)) is reduced by an order of magnitude compared to that of the untreated sample (1.91 x 10(-4) A cm(-2)), and the polarization resistance (R-p) is increased by 176.9%. The disappearance of second phase, the formation of homogeneous dispersed beta' nano-precipitates and the chemically homogenized melted layer account for the improved corrosion resistance of the 15 pulsed WE43 sample in SBF. |
| 学科主题 | Materials Science ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19909]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | Zhang, KM (corresponding author), Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang, Xu,Zhang, Kemin,Zou, Jianxin,et al. Surface microstructure modifications and in-vitro corrosion resistance improvement of a WE43 Mg alloy treated by pulsed electron beams[J]. VACUUM,2020,173. |
| APA | Zhang, Xu,Zhang, Kemin,Zou, Jianxin,Yan, Ping,Song, Luxia,&Liu, Yingrui.(2020).Surface microstructure modifications and in-vitro corrosion resistance improvement of a WE43 Mg alloy treated by pulsed electron beams.VACUUM,173. |
| MLA | Zhang, Xu,et al."Surface microstructure modifications and in-vitro corrosion resistance improvement of a WE43 Mg alloy treated by pulsed electron beams".VACUUM 173(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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