应用激光, 2015, 35 (4): 402, 网络出版: 2015-12-18
激光熔覆工艺参数及微合金元素对Fe基非晶复合涂层显微硬度的影响
Effects of Laser Cladding Parameters and Micro-alloy Elements on the Micro-hardness of Fe-based Amorphous Composite Coating
激光熔覆 Fe基非晶复合涂层 工艺参数 微合金元素 显微硬度 Fe-based amorphous composite coating laser cladding parameters micro-alloy elements micro-hardness
摘要
采用预置粉末的方法, 在700 MPa钢板表面利用激光熔覆技术制备了含氮Fe基非晶复合涂层。通过分析扫描速度及功率对熔覆层显微硬度的影响, 发现只有在适当的扫描速度下制备的熔覆层才具有较高的显微硬度; 而在一定扫描速率下, 当激光功率在1.5 kW时制备的熔覆层具有相对较高的显微硬度。与此同时, 讨论了微合金元素Nb的添加以及N元素的含量对熔覆层显微硬度的影响。
Abstract
With the preset powder, Fe-based amorphous composite coating was prepared by laser cladding on 700 MPa steel. The effects of laser scanning speed and laser power were studied on micro-hardness of laser cladding layer, which shows that a proper scanning speed and 1.5 kW of laser power will be better for getting higher micro-hardness of laser cladding layer. At the same time, the influence of micro-alloy element Nb and Nitrogen content were studied on the micro-hardness of laser cladding layer.
侯纪新, 章顺虎, 蒋小舟, 陈长军, 王晓南. 激光熔覆工艺参数及微合金元素对Fe基非晶复合涂层显微硬度的影响[J]. 应用激光, 2015, 35(4): 402. Hou Jixin, Zhang Shunhu, Jiang Xizozhou, Chen Changjun, Wang Xiaonan. Effects of Laser Cladding Parameters and Micro-alloy Elements on the Micro-hardness of Fe-based Amorphous Composite Coating[J]. APPLIED LASER, 2015, 35(4): 402.