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Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy
Duan, GQ; Yang, LX; Liao, SJ; Zhang, CY; Lu, XP; Yang, YE; Zhang, B; Wei, Y; Zhang, T; Yu, BX; Zhang, XC; Wang, FH; Zhang, T (reprint author), Northeastern Univ, Shenyang Natl Lab Mat Sci, Corros & Protect Div, 3-11 Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China.
2018-05-01
发表期刊CORROSION SCIENCE
ISSN0010-938X
卷号135页码:197-206
摘要The designing idea for the chemical conversion coating with high corrosion resistance (CR) and low electrical contact resistance (ECR) on AZ91D Mg alloy was presented. The main characteristics of the conversion bath include acidic solution, strong oxidizing agent, proper pH value and cation concentration (determined by thermodynamic calculation). The desired performances are attributed to the unique microstructure of conversion coating, i.e., beta phase protruded from the surface and covered by a thinner passive film about 30 nm, contributing to low ECR, meanwhile, a thicker coating of 200-300 nm without cracks was deposited on alpha-phase, providing a good corrosion resistance.; The designing idea for the chemical conversion coating with high corrosion resistance (CR) and low electrical contact resistance (ECR) on AZ91D Mg alloy was presented. The main characteristics of the conversion bath include acidic solution, strong oxidizing agent, proper pH value and cation concentration (determined by thermodynamic calculation). The desired performances are attributed to the unique microstructure of conversion coating, i.e., beta phase protruded from the surface and covered by a thinner passive film about 30 nm, contributing to low ECR, meanwhile, a thicker coating of 200-300 nm without cracks was deposited on alpha-phase, providing a good corrosion resistance.
部门归属[duan, guoqing ; liao, shangju ; zhang, chunyan ; yang, yange ; wei, yong ; zhang, tao ; yu, baoxing] chinese acad sci, inst met res, lab corros & protect, wencui rd 62, shenyang 110016, liaoning, peoples r china ; [duan, guoqing ; liao, shangju] univ sci & technol china, sch mat sci & engn, jinzhai rd 90, hefei 230026, anhui, peoples r china ; [lu, xiaopeng ; zhang, tao ; wang, fuhui] northeastern univ, shenyang natl lab mat sci, corros & protect div, 3-11 wenhua rd, shenyang 110819, liaoning, peoples r china ; [yang, lixin ; zhang, bo] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [zhang, xiaochen] heilongliang inst technol, coll mat & chem engn, hongqi st 999, harbin 150050, heilongjiang, peoples r china
关键词Plasma Electrolytic Oxidation Enhanced Catalytic-activity Phosphate Ionic Liquid Mg-alloy Formation Mechanism Hydrogen Evolution Az31 Composite Protection Films
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者Natural Science Foundation of China [51531007, 51771050, U1737102]; National program for the Young Top-notch Professionals; CAST [2017QNRC001]; Program of Hundred Talents of Chinese Academy of Sciences; Foundation of Young Scholars in HLJIT [2014QJ12]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79337
专题中国科学院金属研究所
通讯作者Yang, YE; Zhang, T (reprint author), Northeastern Univ, Shenyang Natl Lab Mat Sci, Corros & Protect Div, 3-11 Wenhua Rd, Shenyang 110819, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Duan, GQ,Yang, LX,Liao, SJ,et al. Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy[J]. CORROSION SCIENCE,2018,135:197-206.
APA Duan, GQ.,Yang, LX.,Liao, SJ.,Zhang, CY.,Lu, XP.,...&Zhang, T .(2018).Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy.CORROSION SCIENCE,135,197-206.
MLA Duan, GQ,et al."Designing for the chemical conversion coating with high corrosion resistance and low electrical contact resistance on AZ91D magnesium alloy".CORROSION SCIENCE 135(2018):197-206.
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