Microstructure and Properties of WC Particles Reinforced 316L Stainless Steel Composites Prepared by Additive and Subtractive Manufacturing

被引：0
|
作者：
Zhao Y.-H. [1 ,2 ]
Gao M.-Q. [1 ,2 ]
Zhao J.-B. [1 ,2 ]
He C. [1 ,2 ]
机构：
[1] Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang
[2] Institute of Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2022年 / 43卷 / 02期
关键词：
316L stainless steel; Additive/subtractive manufacturing; Density; Mechanical property; Microstructure; Particle reinforcement;
D O I：
10.12068/j.issn.1005-3026.2022.02.007
中图分类号：
学科分类号：
摘要：
Using the own-patented technology and equipment for additive/subtractive manufacturing, the effects of laser power(270, 300 and 330 W)and WC mass fraction(0, 2.5%, 5%, 10% and 15%)on the densification, microstructure evolution and surface wear resistance of the WC particles reinforced 316L stainless steel composites were investigated. The results show that with the increase of WC mass fraction, the density firstly increases and then decreases, while the hardness and wear resistance increase gradually. Excessive WC particles will cause thermal cracks and reduce the surface quality of the additive parts. When the laser power increases from 270 W to 330 W, the powders are fully melted, and the non-fusion defects obviously reduce after solidification. When the mass fraction of WC particles is 5% and the laser power is 330 W, the density of the additive parts can reach up to 99.6%. The findings indicate that mechanical property, wear resistance and surface quality of the 316 L matrix can be significantly improved by the WC reinforcements. © 2022, Editorial Department of Journal of Northeastern University. All right reserved.
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页码：197 / 205
页数：8
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