硼化物硬质相耐磨合金堆焊焊条的研究  

RESEARCH ON THE BUILT-UP WEIDING ROD OF THE WEAR-RESISTING ALLOY WITH BORONIC COMPOUND HARD PHASE

作　　者：徐国建[1] 刘立[1] 

机构地区：[1]沈阳工业大学焊接教研室

出　　处：《硬质合金》1995年第4期223-227,共5页Cemented Carbides

摘　　要：该文研究的硼化物硬质相耐磨合金堆焊焊条为Cr－Mn－B合金系，堆焊层组织由奥氏体和含棚化物硬质相的共晶体组成，由于硼化物硬质相的硬度高，故含硼化物硬质相的共晶体在磨损过程中起到耐磨骨架作用，显著地提高了堆焊层的耐磨性。常温下的耐磨性能是高锰钢的3倍左右。在制砖机双轴搅拌器的叶片上实际运用考核中，比原45#钢淬火件提高寿命5倍之多。该合金系焊条不但具有良好的加工硬化效应，且有良好的机加工性能。In this paper,the built-up welding rod of the wear-resisting alloy with boronic compound hard phase is studied by author which is a Cr-Mn-B alloy system, the structure of buitt-up welding layer is consist of eutectic of austenite and contain boronic compound hard phase. Due to the hardness of boronic compound hard phase is play function of wear-resisting skeleton in wear processing,the wear resistance of buitt-up layer is greatly increase. The wear resistance at room temperature is about 3 times than that of high manganese steel. Use it as the blade of double spindle agitator of brick manufacture,the service life is 5 times ihan that of hardened 45# steel. The welding rod not only have good work hardening effect but also have good machinable property.

关 键 词：硼化物 硬质相 堆焊 焊条 硬化效应 耐磨合金 

分 类 号：TG135.6[一般工业技术—材料科学与工程] TG422.1[金属学及工艺—合金]