Enhanced wear and corrosion resistances of Al coated Mg alloy using high pressure cold sprayed commercially pure-zirconium coating

被引：3
|
作者：
Daroonparvar, M. [1 ,4 ]
Helmer, A. [2 ]
Ralls, A. M. [1 ]
Khan, M. U. Farooq [2 ,3 ]
Kasar, A. K. [1 ]
Menezes, P. L. [1 ]
Misra, M. [4 ]
Gupta, R. K. [2 ]
机构：
[1] Univ Nevada, Dept Mech Engn, Reno, NV 89501 USA
[2] North Carolina State Univ, Coll Engn, Dept Mat Sci & Engn, 911 Partners Way, Raleigh, NC 27695 USA
[3] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA
[4] Univ Nevada, Dept Chem & Mat Engn, Reno, NV 89501 USA
来源：
MATERIALS LETTERS | 2023年 / 346卷
基金：
美国国家科学基金会;
关键词：
Mg alloy; Metallic coating; Corrosion; Tribological performance; BEHAVIOR;
D O I：
10.1016/j.matlet.2023.134473
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Commercially pure (CP) Zr coating with high microhardness (387 +/- 26 HV0.025) was produced on CP-Al coated Mg alloy by a high pressure cold spray (HPCS) system. Substantial densification of Al layers, beneath deposited Zr coating, was observed because of shot-peening influence by Zr particles. The electrochemical impedance spectroscopy after 24 h of immersion in 3.5 wt% NaCl electrolyte revealed highest charge transfer resistance (Rct), polarization resistance (Rpol), and corrosion resistance (|Z|f=0.01Hz) for the Zr/Al coated Mg alloy. Also, wear rate for the Zr/Al coating was lowest which could be attributed to its higher hardness caused by smaller crystallite size and higher dislocation density.
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页数：4
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