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材料工程  2013, Vol. 0 Issue (3): 6-9    DOI: 10.3969/j.issn.1001-4381.2013.03.002
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
氮合金化堆焊硬面合金的抗冲蚀磨损性能研究
杨可, 包晔峰
河海大学 机电工程学院,江苏 常州 213022
Erosion Wear Properties Research of Nitrogen-alloying Hardfacing Alloy
YANG Ke, BAO Ye-feng
College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, Jiangsu, China
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摘要 利用氮代替部分碳,通过铌、钒、钛固氮形成氮合金化堆焊硬面合金,进行了冲蚀角度30°抗冲蚀磨损性能实验,深入分析了冲蚀磨损机理。结果表明:高速含砂水流的冲击磨损,对硬面合金产生明显切削和犁沟剥落,其磨损机制主要为微切削磨损。氮合金化堆焊硬面合金中碳氮化物沿马氏体基体和晶界弥散析出,在强化基体金属提高硬度的同时能有效抵御冲蚀粒子的切削,增强抗冲蚀磨损性能,其磨损特征表现为冲蚀粒子冲击后留下的切削、犁沟以及碳氮化物处造成的块状剥离。
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杨可
包晔峰
关键词 碳氮化物硬面合金冲蚀磨损    
Abstract:The nitrogen-alloying hardfacing alloy deposited layer was made through nitrogen instead of part of carbon and addition of the nitrogen-fixing elements of niobium,vanadium and titanium. The erosion tests were conducted at impact angles of 30, and the erosion wear mechanisms of hardfacing alloy were deeply analyzed. The results showed that spall of cutting and furrow were observed on surface of hardfacing alloy due to the impacting effect of high velocity water flow with sand. The predominant erosion wear mechanism of hardfacing alloy was micro chips by the cutting of erosion particles. A large number of fine carbonitride homogeneously precipitated out of martensitic matrix and grain boundary of hardfacing alloy, which can strengthen matrix metal and enhance hardness of hardfacing alloy. So the hardfacing alloy can be protected effectively from wearing of the erosion particles and the erosion wear resistance of hardfacing alloy was improved slightly. The wear characteristic of nitrogen-alloying hardfacing alloy was mainly included cutting, furrow and block desquamation at the place of carbonitride caused by the erosion particles.
Key wordscarbonitride    hardfacing alloy    erosion wear
收稿日期: 2012-03-20      出版日期: 2013-03-20
1:  TG442.3  
基金资助:

国家自然科学基金资助项目(51101050);江苏省自然科学基金资助项目(BK2011257)

作者简介: 杨可(1983-),男,副教授,博士,主要从事新型焊接材料开发与冶金行为的研究和教学工作,联系地址:江苏省常州市河海大学机电工程学院(213022),E-mail:yangke_hhuc@126.com
引用本文:   
杨可, 包晔峰. 氮合金化堆焊硬面合金的抗冲蚀磨损性能研究[J]. 材料工程, 2013, 0(3): 6-9.
YANG Ke, BAO Ye-feng. Erosion Wear Properties Research of Nitrogen-alloying Hardfacing Alloy. Journal of Materials Engineering, 2013, 0(3): 6-9.
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http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2013.03.002      或      http://jme.biam.ac.cn/CN/Y2013/V0/I3/6
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