Chemically depleting the noble impurities from AZ91-T4 magnesium alloy: A new and efficient pretreatment method to improve the corrosion resistance of phosphate conversion coatings
文献类型：期刊论文
| 作者 | Liao, Shangju1,2; Yu, Baoxing1; Zhang, Bo1; Zhou, Peng4; Zhang, Tao3; Wang, Fuhui3 |
| 刊名 | CORROSION SCIENCE
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 191页码:19 |
| 关键词 | Magnesium alloys Corrosion resistance Conversion coatings Pretreatment |
| ISSN号 | 0010-938X |
| DOI | 10.1016/j.corsci.2021.109725 |
| 通讯作者 | Zhang, Tao(zhangtao@mail.neu.edu.cn) |
| 英文摘要 | Alx(Mn,Fe)y phase, as a common derivative of Fe-containing impurities, significantly deteriorates the protectiveness of phosphate conversion coatings (PCC) on magnesium alloys due to the micro-galvanic effect. This work presents a novel pretreatment method, aiming at chemically depleting the noble Alx(Mn,Fe)y phase from Mg alloy surface before PCC treatment. The pretreatment bath contains both oxidant and complexing agent, with the pH value and concentration of different constituents being determined by thermodynamic calculation. The corrosion resistance of PCC being preceded by exploiting the novel pretreatment method was improved, which was attributed to the mitigation of micro-galvanic corrosion. |
| 资助项目 | National Natural Science Foundation of China[51771050] ; National Natural Science Foundation of China[51531007] ; China Postdoctoral Science Foundation[2019M651128] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000696876000003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/167009]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Corros & Protect Div, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 4.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Shangju,Yu, Baoxing,Zhang, Bo,et al. Chemically depleting the noble impurities from AZ91-T4 magnesium alloy: A new and efficient pretreatment method to improve the corrosion resistance of phosphate conversion coatings[J]. CORROSION SCIENCE,2021,191:19. |
| APA | Liao, Shangju,Yu, Baoxing,Zhang, Bo,Zhou, Peng,Zhang, Tao,&Wang, Fuhui.(2021).Chemically depleting the noble impurities from AZ91-T4 magnesium alloy: A new and efficient pretreatment method to improve the corrosion resistance of phosphate conversion coatings.CORROSION SCIENCE,191,19. |
| MLA | Liao, Shangju,et al."Chemically depleting the noble impurities from AZ91-T4 magnesium alloy: A new and efficient pretreatment method to improve the corrosion resistance of phosphate conversion coatings".CORROSION SCIENCE 191(2021):19. |
入库方式： OAI收割
来源：金属研究所
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