Corrosion and mechanical performance of double-layered nano-Al/PCL coating on Mg-Ca-Bi alloy

被引：35

作者：

Bakhsheshi-Rad, H. R. ^{[1
]}

Hamzah, E. ^{[1
]}

Abdul-Kadir, M. R. ^{[1
]}

Daroonparvar, M. ^{[1
]}

Medraj, M. ^{[2
,3
]}

机构：

[1] Univ Teknol Malaysia, Fac Mech Engn, Dept Mat Mfg & Ind Engn, Johor Baharu 81310, Bahru, Malaysia

[2] Concordia Univ, Dept Mech Engn, Montreal, PQ H3G 1M8, Canada

[3] Masdar Inst, Mech & Mat Engn Dept, Abu Dhabi, U Arab Emirates

来源：

VACUUM | 2015年 / 119卷

关键词：

Mg alloy; PVD; Composite coating; Mechanical properties; Corrosion behaviour; AZ31 MAGNESIUM ALLOY; PLASMA ELECTROLYTIC OXIDATION; COMPOSITE COATINGS; BEHAVIOR; RESISTANCE; BILAYER;

D O I：

10.1016/j.vacuum.2015.04.039

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

To improve corrosion resistance and reduce mechanical properties loss of Mg-Ca-Bi alloy, nano-aluminium (Al) and poly(epsilon-caprolactone) (PCL) were prepared on a substrate of this alloy through physical vapour deposition (PVD) and dip coating techniques. The coating is composed of a thick outer interconnected pores PCL layer and a thin inner dense Al layer. The results showed that the compressive strength of nano-Al/PCL after immersion in NaCL solution is significantly higher than nano-Al coated samples but nano-Al showed better bonding strength of 25.6 MPa than that of nano-Al/PCL which was 8.1 MPa only. The results of electrochemical tests indicated that the bi-layered nano-Al/PCL coating dramatically increased the corrosion resistance of the Mg-Ca-Bi alloy. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：95 / 98

页数：4

共 21 条

[1]

Fabrication and corrosion behavior of Si/HA nano-composite coatings on biodegradable Mg-Zn-Mn-Ca alloy [J].