陈翠欣,赵向东,赵琳,韩伟,彭云,殷福星,田志凌.激光熔覆Ni3Al/Cr3C2复合材料耐磨性能研究[J].稀有金属材料与工程,2020,49(4):1388~1394.[Chen Cuixin,Zhao Xiangdong,Zhao Lin,Han Wei,Peng Yun,Yin Fuxing,Tian Zhiling.Study on Wear Resistance of Laser Cladding Ni3Al/Cr3C2 Composites[J].Rare Metal Materials and Engineering,2020,49(4):1388~1394.]
激光熔覆Ni3Al/Cr3C2复合材料耐磨性能研究
投稿时间:2019-01-04  修订日期:2019-03-20
中文关键词:  激光熔覆  Ni3Al/Cr3C2复合材料  显微组织  M7C3  耐磨性能
基金项目:国家重点研发计划资助(项目号 2017YFB1103300);国际科技合作项目资助(项目号2015DFA50970);河北工业大学联合培养博士研究生项目资助(项目号 2018GN0003)
中文摘要:
      采用激光熔覆技术在304不锈钢基板上制备了Ni3Al合金和Ni3Al/Cr3C2(25wt.%)复合材料耐磨涂层,考察了Ni3Al合金和Ni3Al/Cr3C2熔覆层的显微组织、硬度及耐磨性能。结果表明,Ni3Al/Cr3C2熔覆层显微组织由基体γ"-Ni3Al相和原位自生M7C3(M=Cr,Fe)型碳化物组成,且细小近圆形的M7C3弥散分布在γ"-Ni3Al基体中。与Ni3Al合金熔覆层相比较,Ni3Al/Cr3C2熔覆层显微硬度提高了近2.5倍。650℃时,其磨损量仅为对比材料蠕墨铸铁的28%左右。因此,激光熔覆制备Ni3Al/Cr3C2复合材料熔覆层具有良好的耐磨性能。
Study on Wear Resistance of Laser Cladding Ni3Al/Cr3C2 Composites
英文关键词:laser  cladding, Ni3Al/Cr3C2, microstructure, M7C3, wear  resistance
英文摘要:
      The wear resistant coatings of Ni3Al alloy and Ni3Al/Cr3C2 composites were prepared on 304 stainless steel substrate by laser cladding technique. The microstructure, hardness and wear resistance of Ni3Al alloy and Ni3Al/Cr3C2 composites were investigated. The results show that the microstructure of the cladding layer of Ni3Al/Cr3C2 consists of matrix γ"-Ni3Al phase and in-situ self-generated M7C3 (M=Cr,Fe) type carbides, and the fine near-circular M7C3 is dispersed in γ"- Ni3Al matrix. Compared with the Ni3Al alloy cladding layer, the micro-hardness of the Ni3Al/Cr3C2 composites cladding layer is increased by 2.5 times, and the weight loss is only 28% of the vermicular graphite cast iron. Therefore, the laser cladding Ni3Al/Cr3C2 composite cladding layer has good wear resistance.
作者单位E-mail
陈翠欣 河北工业大学 材料学院 karenccx@126.com 
赵向东 河北工业大学 材料学院 15022120850@163.com 
赵琳 钢铁研究总院 焊接研究所  
韩伟 钢铁研究总院 焊接研究所  
彭云 钢铁研究总院 焊接研究所  
殷福星 河北工业大学 材料学院  
田志凌 钢铁研究总院 焊接研究所  
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