Mechanical properties and corrosion resistance of large-size biodegradable Ca-Mg-Zn bulk metallic glasses fabricated via powder metallurgy

被引：8
作者：
Cai, Zeyun [1 ]
Chen, Jiayin [1 ]
Xie, Guoqiang [1 ,2 ]
机构：
[1] Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China
[2] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
INTERMETALLICS | 2022年 / 148卷
基金：
中国国家自然科学基金;
关键词：
Bulk metallic glass; Ca-Mg-Zn; Spark plasma sintering; Mechanical properties; Biodegradable metal; FORMING ABILITY; BEHAVIOR; FIELD;
D O I：
10.1016/j.intermet.2022.107633
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：
Biodegradable metallic glasses are used as disposable green devices whose constituents decompose into harmless byproducts, leaving no residual waste and requiring no removal surgery. Here, the large size Ca-based (Ca65Mg15Zn20) bulk metallic glasses (BMGs) were fabricated by consolidating gas-atomized metallic glassy alloy powder using a spark plasma sintering (SPS) technique. The effects of sintering temperature on structure, mechanical properties, and biodegradation rate of the developed Ca-based BMGs in Hank's solution were evaluated. The high-strength consolidated samples with a fully glassy phase and suitable biodegradation rate were produced by the SPS process at a sintering temperature of 120 degrees C with a loading pressure of 600 MPa. The Ca-Mg-Zn bulk metallic glass alloys developed by the SPS process can offer excellent properties and satisfy large sample-size requirements, which opens possibilities of application as biodegradable materials.
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页数：6
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