等离子堆焊涂层成分优化及耐磨性能研究  

Coat Components Optimization and Wearability for Plasma Transferred Arc Processing

作　　者：鲁建波[1] 姚舜[1] 楼松年[1] 杜则裕[2] 李少青[1] 

机构地区：[1]上海交通大学焊接工程研究所,上海200030 [2]天津大学材料科学与工程学院,天津300072

出　　处：《机械工程材料》2006年第3期35-37,共3页Materials For Mechanical Engineering

摘　　要：为了提高材料表面的耐磨性,在Ni60基体合金粉末中加入了铬、锰、钨粉末,配置了一种新的合金粉末,并在Q235钢板上进行了等离子堆焊试验。以铬、锰、钨粉末的含量为因子,以硬度为指标,采用三水平三因子正交表进行统计分析,得到了较优粉末配方为：ω(Cr)=10%,ω(Mn)=4%,ω(W)=7%,余为Ni60基体合金粉末。磨损试验结果表明：Q235钢板表面的耐磨性得到了提高,且随堆焊层硬度的增加,其耐磨性增强。To improve the wearability of materials, a new alloy powder was produced and weld-surfaced by plasma transferred arc（PTA） processing on Q235 steel specimens. The powder was made on the matrix of Ni-based powder（Ni60） with Cr, Mn and W additions. The orthogonal experiment method was used to find the best composition with the index of ＂hardness＂ and the factors of ＂proportions of Cr, Mn and W”. The best composition was ω（Cr）=10%, ω（Mn）=4%, to（W）=7%, and with the rest of Ni-based powder. The wear testing results indicated that the wearability of welded coat was improved. With increase of the hardness, the coat was more wearable.

关 键 词：等离子堆焊 正交试验 成分 

分 类 号：TG455[金属学及工艺—焊接]