Microstructure and Mechanical Properties of AZ31/ZrO2Composites Prepared by Friction Stir Processing With High Rotation Speed

被引：10
|
作者：
Zang, Qianhao [1 ]
Li, Xiaowen [2 ]
Chen, Hongmei [1 ]
Zhang, Jing [3 ]
Wang, Ling [4 ]
Chen, Shujin [1 ]
Jin, Yunxue [1 ]
Lu, Sheng [1 ]
机构：
[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang, Jiangsu, Peoples R China
[2] Shandong Heavy Machinery Co Ltd, Linyi, Shandong, Peoples R China
[3] Jiangsu Univ Sci & Technol, Sch Met & Mat Engn, Zhenjiang, Jiangsu, Peoples R China
[4] Yingkou Inst Technol, Sch Mat Sci & Engn, Yingkou, Peoples R China
来源：
FRONTIERS IN MATERIALS | 2020年 / 7卷
关键词：
AZ31; alloy; Nano-ZrO(2)particles; friction stir processing; microstructure; mechanical properties; MAGNESIUM MATRIX COMPOSITES; ALLOY; FABRICATION; BEHAVIOR; WEAR; NANOCOMPOSITE; DISPERSION;
D O I：
10.3389/fmats.2020.00278
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The nano-ZrO2-reinforced AZ31 alloy composites were fabricated by friction stir processing with three multi-passes and high rotation speeds. The AZ31/2.14 vol% ZrO2, AZ31/4.29 vol% ZrO(2,)and AZ31/6.43 vol% ZrO(2)composites were designed. The fine microstructure and uniform dispersion of ZrO(2)particles were observed in the AZ31/ZrO(2)composites. The excellent interfacial bonding was observed between the Mg matrix and ZrO2. The hardness and tensile properties were enhanced after three cumulative friction stir processing passes. This was attributed to grain refinement and strengthening effects of ZrO2. The tensile properties and hardness of the AZ31/ZrO(2)composite increased with the increase of volume fraction of the ZrO(2)particles from 2.14 to 6.43 vol%.
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页数：9
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