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H13 钢表面激光熔覆WC颗粒增强复合涂层的 实验研究
Experimental Study of Laser Cladding WC Particle-reinforced Composite Coatings on H13 Steel Surface
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- DOI:
- 作者:
- 石晓蕾1，李海洋1，邱焕霞1，宋建丽1，2，邓琦林3，唐 彬4
SHI Xiaolei1, LI Haiyang1, QIU Huanxia1, SONG Jianli1,2, DENG Qilin3, TANG Bin4
- 作者单位:
- 1. 北京信息科技大学仪器科学与光电工程学院，北京100192；2.山东省特种焊接技术重点实验室，山东威海264209； 3.上海交通大学机械与动力工程学院，上海200240；4.上海电力股份有限公司吴泾热电厂，上海200241
1. School of Instrument Science and Opto Electronics Engineering, Beijing Information Science and Technology University, Beijing 100192, China; 2. Shandong Provincial Key Lab. of Special Welding Technology, Weihai 264209, China; 3. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 4.Shanghai Electric Power Co., Ltd., Wujing Thermal Power Plant, Shanghai 200241, China
- 关键词:
- H13钢；激光熔覆；WC复合涂层；组织性能
H13 steel; laser cladding; WC composite coating; microstructure and properties
- 摘要:
- 在H13钢表面制备了H13+H13/WC颗粒增强复合涂层，对涂层组织演化机理、界面行为及显微硬度分布、
摩擦磨损性能等进行了分析与表征。 结果表明，熔覆层与基体形成良好的冶金结合，复合熔覆层成形质量良好；相同工
艺参数下，H13/20%WC熔覆层的硬度最高，平均显微硬度为639HV，具有较好的耐磨性。 H13钢基体的磨损机制主要
为磨粒磨损、氧化磨损和少量的剥层磨损，各熔覆层磨损形式主要是磨粒磨损和氧化磨损。Particle-reinforced composite coatings of H13+H13/WC were prepared on the surface of H13 steel substrate. The microstructure evolution mechanism, interface behavior, microhardness distribution and wear performance of the coatings were analyzed and characterized. The results show that the cladding layers have been metallurgical bonded with the matrix, and the forming quality of the composite coatings is perfect. Under the same process parameters, the microhardness of the H13/20% WC coating is the highest, with an average value of 639 HV, with good wear resistance. The wear mechanism of H13 steel matrix is mainly abrasive wear, oxidation wear and a little stripping wear, and the wear forms of each cladding layer are mainly abrasive wear and oxidation wear.