摘要
采用激光增材制造技术制备了纯钨及钨铜复合材料,通过光学显微镜、扫描电镜和维氏硬度测量仪等表征了其表面形貌、微观结构和硬度,系统分析了粉末特性、激光功率、扫描速率以及铺粉厚度等参数对纯钨制件的组织形貌和力学性能的影响,以及对钨铜复合材料界面结合的影响。通过优化激光功率和扫描速率等加工参数,制备了致密度最高达97.66%,硬度(HV)高达486.23的纯钨制件,以及界面结合良好的钨铜复合材料制件。
Pure tungsten and tungsten copper composites were fabricated by laser additive manufacturing. The surface morphology, microstructure and hardness were characterized by optical microscopy, scanning electron microscope and Vickers hardness tester. The influence of parameters, including powder characteristics, laser power, scanning speed and layer thickness on the microstructure and mechanical properties of pure tungsten parts, as well as the interface bonding of tungsten copper composites were systematically analyzed. Pure tungsten parts with relative density up to 97.66% and hardness up to 486.23 HV were produced, and tungsten copper composites with desirable interface bonding were obtained by optimizing the processing parameters.
作者
邓澄
蒋梦龙
周圣丰
Deng Cheng;Jiang Menglong;Zhou Shengfeng(School of Mechanical and Automotive Engineering,South China University of Technology;Institute of Advanced Wear&Corrosion Resistance and Functional Materials,Jinan University;Wuhan National Laboratory for Optoelectronics(WNLO),Huazhong University of Science and Technology)
出处
《特种铸造及有色合金》
CAS
北大核心
2022年第7期804-809,共6页
Special Casting & Nonferrous Alloys
基金
广东省基础与应用基础研究基金资助项目(2020A1515110699)
国家自然科学基金重大研究计划资助项目(92166112)
华中科技大学武汉光电国家研究中心开放基金资助项目(2021WNLKF010)
桂林电子科技大学广西信息材料重点试验室开放基金资助项目(211003-K)
国家金属材料近净成形工程技术研究中心、金属材料高效近净成形技术与装备教育部重点试验室(B类)开放基金资助项目(2020003)
关键词
激光增材制造
纯钨
钨铜复合材料
微观组织
性能
Laser Additive Manufacturing
Pure Tungsten
Tungsten Copper Composites
Microstructure
Properties
