Effect of surface treatment on the corrosion properties of magnesium-based fibre metal laminate

被引：30
|
作者：
Zhang, X. [1 ]
Zhang, Y. [1 ]
Ma, Q. Y. [1 ]
Dai, Y. [1 ]
Hu, F. P. [1 ]
Wei, G. B. [1 ]
Xu, T. C. [1 ]
Zeng, Q. W. [2 ]
Wang, S. Z. [2 ]
Xie, W. D. [1 ,3 ]
机构：
[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[2] Chongqing Polycomp Int CORP, Chongqing 400082, Peoples R China
[3] Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2017年 / 396卷
关键词：
Magnesium alloy; Surface treatment; FML; Wettability; Interface; Corrosion resistance; INTERFACIAL FRACTURE; AZ31B-H24; MAGNESIUM; VOID CONTENT; ALUMINUM; COATINGS; ALLOY; GLARE; APPLICABILITY; BEHAVIOR; FAILURE;
D O I：
10.1016/j.apsusc.2016.11.131
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The surface roughness, weight of phosphating film and wettability of magnesium alloy substrates after abrasion and phosphating treatment were investigated in this work. The interfacial bonding and corrosion properties of a magnesium-based fibre metal laminate (MgFML) were analysed. The results showed that the wettability of the magnesium alloy was greatly influenced by the surface roughness, and the rough surface possessed a larger surface energy and better wettability. The surface energy and wettability of the magnesium alloy were significantly improved by the phosphating treatment. After phosphating for 5 min, a phosphating film with a double-layer structure was formed on the magnesium substrate, and the weight of the phosphating film and the surface energy reached their maximum values. The surface energies of the phosphated substrate after abrasion with #120 and #3000 grit abrasive papers were 84.31 mJ/m(2) and 83.65 mJ/m(2), respectively. The wettability of the phosphated magnesium was significantly better than the abraded magnesium. The phosphated AZ31B sheet had a better corrosion resistance than the abraded AZ31B sheet within short times. The corrosion resistance of the magnesium alloy was greatly increased by being composited with glass fibre/epoxy prepregs. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：1264 / 1272
页数：9
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