含硼耐磨抗裂堆焊焊条的优化设计  

Optimizing Design of B Series Hardfacing Electrode with Wear-resistance and Crack-resistance

作　　者：李强[1] 汤文博[1] 郭云刚[1] 

机构地区：[1]郑州大学材料科学与工程学院

出　　处：《热加工工艺》2008年第15期1-3,共3页Hot Working Technology

基　　金：河南省自然科学基金资助项目(0411050200)

摘　　要：采用正交试验方法优化设计出含硼耐磨抗裂堆焊焊条,通过硬度、金相组织、耐磨性、抗裂性等试验,分析堆焊层的显微组织结构。试验结果表明,该焊条堆焊层抗裂性高,焊前不预热,焊后不缓冷,连续堆焊不产生裂纹;耐磨性好,相对耐磨性优于D667焊条。The B series hardfacing electrode with the properties of wear-resistance and crack-resistance were designed by orthogonal test. The microstructure of hardfacing was analyzed by the experiments of hardness, metallurgical microstructure, crack-resistance and wear-resistance. The results show that the hardfacing metal has high resistance to crack and crack do not occur even under conditions of non-preheating and non-postheating. The hardfacing metal has high wear-resistance, and its relative wearability is better than that of D667.

关 键 词：堆焊焊条 优化设计 抗裂 耐磨性 

分 类 号：TG422[金属学及工艺—焊接]