Effect of Heat Treatment on the Dry Sliding Wear Behavior of the Mg-3Zn-0.4Ca Alloy for Biodegradable Implants

被引：7
作者：
Pulido-Gonzalez, Nuria [1 ]
Garcia-Rodriguez, Sonia [1 ]
Torres, Belen [1 ]
Rams, Joaquin [1 ]
机构：
[1] Univ Rey Juan Carlos, ESCET, Dept Matemat Aplicada Ciencia & Ingn Mat & Tecnol, C Tulipan S-N, Madrid 28933, Spain
来源：
MATERIALS | 2023年 / 16卷 / 02期
关键词：
magnesium alloys; dry sliding wear; heat treatment; precipitation; biodegradable implants; Mg-Zn-Ca alloys; MAGNESIUM ALLOY; ABRASIVE WEAR; ZN; MICROSTRUCTURE; COUNTERBODY; CORROSION; HARDNESS; AZ31B;
D O I：
10.3390/ma16020661
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 wear behavior of the Mg-3wt.% Zn-0.4wt.% Ca (ZX30) alloy was tested using a pin-on-disc configuration with AZ31 alloy discs as counterparts under dry sliding conditions. The ZX30 alloy was tested in different states: as-cast, solution-treated, peak-aged, and over-aged. Wear rates and friction coefficients were measured at different loads and sliding speeds. Abrasion and oxidation were the main wear mechanisms found in all the conditions tested. Moreover, aluminum oxides were detected on the worn surfaces, which indicates the presence of an adhesive wear mechanism. The wear behavior of the studied ZX30 alloy showed a greater tendency towards oxidative wear than other Mg alloys, and the microstructure observed strongly affected the wear behavior.
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页数：14
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