增减材复合制造WC颗粒增强316L不锈钢材料组织性能

doi:10.12068/j.issn.1005-3026.2022.02.007

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (2): 197-205.DOI: 10.12068/j.issn.1005-3026.2022.02.007

增减材复合制造WC颗粒增强316L不锈钢材料组织性能

赵宇辉^1,2，高孟秋^1,2，赵吉宾^1,2，贺晨^1,2

(1. 中国科学院沈阳自动化研究所，辽宁沈阳110016； 2. 中国科学院机器人与智能制造创新研究院，辽宁沈阳110169)

修回日期:2021-06-10 接受日期:2021-06-10 发布日期:2022-02-28
通讯作者: 赵宇辉
作者简介:赵宇辉(1983-)，男，辽宁沈阳人，中国科学院沈阳自动化研究所副研究员；赵吉宾(1970-)，男，辽宁沈阳人，中国科学院沈阳自动化研究所研究员，博士生导师.
基金资助:
广东省基础与应用基础研究基金资助项目(2020B1515120027)；国家自然科学基金资助项目(51805526)；中央引导地方科技发展专项资金资助项目(2021JH6/10500119).

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

ZHAO Yu-hui^{1, 2}， GAO Meng-qiu^{1, 2}， ZHAO Ji-bin^{1, 2}， HE Chen^{1, 2}

1. Shenyang Institute of Automation， Chinese Academy of Sciences， Shenyang 110016， China; 2. Institute of Robotics and Intelligent Manufacturing， Chinese Academy of Sciences， Shenyang 110169， China.

Revised:2021-06-10 Accepted:2021-06-10 Published:2022-02-28
Contact: HE Chen
About author:-
Supported by:
-

摘要/Abstract

摘要： 基于自主研发的增减材复合工艺技术与装备，探索了激光功率和WC颗粒质量分数对316L不锈钢复合材料致密度、组织演变和表面耐磨性能的影响规律.结果表明:随着WC质量分数的增加，试样致密度呈现先升高后降低的趋势，而硬度和耐磨性能均逐渐提高，过多的WC颗粒会使工件内部产生热裂纹，同时降低了工件的表面质量；当激光功率由270W提高到330W时粉末充分熔化，凝固后未熔合缺陷明显减少.当WC颗粒质量分数为5%、激光功率为330W时，增材件的致密度最高达到99.6%；相比未添加WC颗粒的工件，力学性能、耐磨性能和表面质量等指标均有明显提高.

关键词: 增减材制造；颗粒增强；316L不锈钢；致密度；微观组织；力学性能

Abstract: Using the own-patented technology and equipment for additive/subtractive manufacturing， the effects of laser power(270， 300 and 330W)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 270W to 330W， 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 330W， 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 316L matrix can be significantly improved by the WC reinforcements.

Key words: additive/subtractive manufacturing; particle reinforcement; 316L stainless steel; density; microstructure; mechanical property

中图分类号:

TG141

赵宇辉，高孟秋，赵吉宾，贺晨. 增减材复合制造WC颗粒增强316L不锈钢材料组织性能[J]. 东北大学学报（自然科学版）, 2022, 43(2): 197-205.

ZHAO Yu-hui ， GAO Meng-qiu ， ZHAO Ji-bin ， HE Chen. Microstructure and Properties of WC Particles Reinforced 316L Stainless Steel Composites Prepared by Additive and Subtractive Manufacturing[J]. Journal of Northeastern University(Natural Science), 2022, 43(2): 197-205.

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增减材复合制造WC颗粒增强316L不锈钢材料组织性能

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

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