New design principles for the bath towards chromate- and crack-free conversion coatings on magnesium alloys
文献类型：期刊论文
| 作者 | Liao, Shangju1,4,5; Yu, Baoxing4; Zhang, Xuliang2; Lu, Xiaopeng1; Zhou, Peng1; Zhang, Chunyan4; Chen, XiaoBo3; Zhang, Tao1; Wang, Fuhui1 |
| 刊名 | JOURNAL OF MAGNESIUM AND ALLOYS
 |
| 出版日期 | 2021-03-15 |
| 卷号 | 9期号:2页码:505-519 |
| 关键词 | Phosphate conversion coating Design principles Magnesium alloy TA/pH Corrosion resistance |
| ISSN号 | 2213-9567 |
| DOI | 10.1016/j.jma.2019.12.013 |
| 通讯作者 | Zhou, Peng(zhoupeng@mail.neu.edu.cn) ; Zhang, Tao(zhangtao@mail.neu.edu.cn) |
| 英文摘要 | Cracking and low thickness are major obstacles to the high corrosion performance of conversion coating on magnesium alloy. In this work, the ratio of total acidity to pH (TA/pH) was applied as an indicator, and new principles regarding the design of conversion bath were proposed. The treatment bath should be composed of species that can be categorized into two groups: the first group of species that react with Mg substrate to increase the local pH at the interface; the second group that precipitate and contributes to the growth of coating. The species belong to second group exists in a supersaturated state and its precipitation process is almost independent on the reactions of the species in first group. By this way, a thick and crack-free two-layered conversion coating is obtained. Moreover, the nature of the adjustment of TA/pH and the roles of the oxidizing agent and catalyst were discussed. (C) 2020 Chongqing University. Publishing services provided by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. |
| 资助项目 | National Natural Science Foundation of China[51531007] ; National Natural Science Foundation of China[51771050] ; China Postdoctoral Science Foundation[2019M651128] ; National Program for Young Top-notch Professionals ; Fundamental Research Funds for the Central Universities[N170205002] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000640516900011 |
| 出版者 | KEAI PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Program for Young Top-notch Professionals ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.imr.ac.cn/handle/321006/161722]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou, Peng; Zhang, Tao |
| 作者单位 | 1.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China 2.Shanghai Spaceflight Precis Machinery Res Inst, 76 Guide Rd, Shanghai 201600, Peoples R China 3.RMIT Univ, Sch Engn, Carlton, Vic 3053, Australia 4.Chinese Acad Sci, Inst Met Res, Corros & Protect Div, Shenyang Natl Lab Mat Sci, 62 Wencui Rd, Shenyang 110016, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Shangju,Yu, Baoxing,Zhang, Xuliang,et al. New design principles for the bath towards chromate- and crack-free conversion coatings on magnesium alloys[J]. JOURNAL OF MAGNESIUM AND ALLOYS,2021,9(2):505-519. |
| APA | Liao, Shangju.,Yu, Baoxing.,Zhang, Xuliang.,Lu, Xiaopeng.,Zhou, Peng.,...&Wang, Fuhui.(2021).New design principles for the bath towards chromate- and crack-free conversion coatings on magnesium alloys.JOURNAL OF MAGNESIUM AND ALLOYS,9(2),505-519. |
| MLA | Liao, Shangju,et al."New design principles for the bath towards chromate- and crack-free conversion coatings on magnesium alloys".JOURNAL OF MAGNESIUM AND ALLOYS 9.2(2021):505-519. |
入库方式： OAI收割
来源：金属研究所
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