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材料工程  2015, Vol. 43 Issue (7): 73-79    DOI: 10.11868/j.issn.1001-4381.2015.07.013
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
等离子熔覆含亚微米碳化铌铁基耐磨合金组织与性能的研究
王智慧1, 赵雪飞1, 贺定勇1, 蒋建敏1, 赵秋颖2, 刘飞1
1. 北京工业大学 材料科学与工程学院, 北京 100124;
2. 北京工业大学 机械工程博士后流动站, 北京 100124
Microstructure and Properties of Plasma Cladding Fe-based Wear-resisting Alloy Containing Submicron NbC
WANG Zhi-hui1, ZHAO Xue-fei1, HE Ding-yong1, JIANG Jian-min1, ZHAO Qiu-ying2, LIU Fei1
1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China;
2. Mechanical Engineering Postdoctoral Research Station, Beijing University of Technology, Beijing 100124, China
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摘要 采用等离子熔覆(PTA)在Q235钢上制备含亚微米碳化铌Fe-Cr-B-C-Nb熔覆层,通过改变合金成分,分别设计含超细碳化铌、含共晶硼化物、含超细碳化铌+共晶硼化物、含超细碳化铌+初生Fe2B硬质相的熔覆层,研究不同尺寸硬质相对Fe-Cr-B-C-Nb熔覆层组织与性能的影响,并与市售常用Fe-Cr-C耐磨材料对比.结果表明:细小硬质相有助于改善合金冲击变形能力,含亚微米碳化铌和共晶硼化物的合金具有优良的综合性能,耐磨性为Fe-Cr-C耐磨材料的4倍多,且冲击变形能力优于Fe-Cr-C耐磨材料.
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王智慧
赵雪飞
贺定勇
蒋建敏
赵秋颖
刘飞
关键词 碳化铌等离子熔覆(PTA)亚微米耐冲击性    
Abstract:Fe-Cr-B-C-Nb cladding layer containing submicron NbC were prepared by PTA on Q235 steel, a series of alloys containing superfine NbC, eutectic boride, NbC + eutectic boride, NbC+primary Fe2B hardphase were designed respectively to study the effect of hardphase of different size on microstructure and properties of Fe-Cr-B-C-Nb cladding layer, and compared with the Fe-Cr-C hardfacing alloy in market. The results show that the fine hardphase can conduce to improve the impact resistance and the wear resistance of the alloy containing submicron NbC and eutectic boride is 4 times more than that of Fe-Cr-C, and the impact resistance is better than that of Fe-Cr-C.
Key wordsNbC    plasma cladding    submicron    impact resistance
收稿日期: 2013-08-29      出版日期: 2015-07-27
中图分类号:  TG174.442  
通讯作者: 王智慧(1956-),男,教授,硕士,主要从事异种钢焊接接头的研究和金属表面强化研究,联系地址:北京朝阳区平乐园100号,北京工业大学材料科学与工程学院(100124)     E-mail: zhwang@bjut.edu.cn
引用本文:   
王智慧, 赵雪飞, 贺定勇, 蒋建敏, 赵秋颖, 刘飞. 等离子熔覆含亚微米碳化铌铁基耐磨合金组织与性能的研究[J]. 材料工程, 2015, 43(7): 73-79.
WANG Zhi-hui, ZHAO Xue-fei, HE Ding-yong, JIANG Jian-min, ZHAO Qiu-ying, LIU Fei. Microstructure and Properties of Plasma Cladding Fe-based Wear-resisting Alloy Containing Submicron NbC. Journal of Materials Engineering, 2015, 43(7): 73-79.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.07.013      或      http://jme.biam.ac.cn/CN/Y2015/V43/I7/73
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