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材料导报  2021, Vol. 35 Issue (Z1): 425-428    
  金属与金属基复合材料 |
高硼含量的铁基非晶复合涂层的制备与性能研究
王永田, 魏啸天, 赵祎璠, 王嘉伟
华北电力大学电站设备状态监测与控制教育部重点实验室,北京 102206
Study on Preparation and Property of the Fe-based Amorphous Composite Coating with High Boron Content
WANG Yongtian, WEI Xiaotian, ZHAO Yifan, WANG Jiawei
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Beijing 102206, China
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摘要 硼元素有很大的中子俘获截面,常用于核反应堆的防护屏等,但是纯硼又硬又脆不利于加工,开发具有高硼含量的耐磨耐腐蚀涂层在核工业辐射防护等领域有巨大的应用潜力。通过在铁基非晶粉末中添加不同含量的硼粉末,采用激光熔覆的方法,制备出一系列高硼含量的非晶复合涂层。利用X射线衍射、扫描电子显微镜和能谱分析仪对涂层的微观组织和成分进行分析,并测试涂层的显微硬度。结果表明,高硼含量的非晶复合涂层具有致密的结构,平均硬度高达1000HV0.1,无明显裂纹且气孔率较低,并与基体为冶金连接。最后重点讨论了高硼含量非晶复合涂层的微观结构和性能之间的内在联系。
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王永田
魏啸天
赵祎璠
王嘉伟
关键词:  非晶复合涂层  激光熔覆  显微硬度    
Abstract: Boron is very commonly used in the nuclear reactor shields for the large neutron capture cross section, but the hard and brittle pure boron can not be processed easily. The wear and corrosion resistant coatings with high boron content have great the potential applications for the radiation protection of the nuclear industry. The Fe-based amorphous composite coating doped with high purity boron powder was prepared by the laser cladding method. The composition and microstructure of the composite coatings were investigated by the X-ray diffraction (XRD), the scanning electron microscope (SEM) and the energy dispersive spectroscopy (EDS) respectively, the micro-hardness of the coatings was also measured. The results show that the amorphous composite coatings with high boron content can be prepared by the laser cladding method, and the composite coatings were found to have the good bonding strength, the dense microstructure and no obvious cracks. The average micro-hardness of the coatings is up to 1 000HV0.1. At last, the relation between the composition and micro-structure was discussed in detail.
Key words:  amorphous composite coating    laser cladding    micro-hardness
                    发布日期:  2021-07-16
ZTFLH:  TG174  
基金资助: 中央高校基本科研业务费专项资金(2018MS017)
通讯作者:  wyt@ncepu.edu.cn   
作者简介:  王永田,华北电力大学能源与机械工程学院副教授。主要研究方向为:非晶复合涂层技术、垃圾焚烧电站及生物质锅炉受热面的防腐涂层技术等。
引用本文:    
王永田, 魏啸天, 赵祎璠, 王嘉伟. 高硼含量的铁基非晶复合涂层的制备与性能研究[J]. 材料导报, 2021, 35(Z1): 425-428.
WANG Yongtian, WEI Xiaotian, ZHAO Yifan, WANG Jiawei. Study on Preparation and Property of the Fe-based Amorphous Composite Coating with High Boron Content. Materials Reports, 2021, 35(Z1): 425-428.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2021/V35/IZ1/425
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