稀土低合金耐磨钢堆焊焊条熔敷层性能研究  

Study on Performance of Hard-facing Electrode of RE Low-alloying Wear-resistant Steel

作　　者：徐慧[1] 李天生[1] 李兴志[2] 孟李红 

机构地区：[1]湖南工学院机械工程系,湖南衡阳421008 [2]胜利石油管理局总机械厂,山东东营257000 [3]通用电气亚洲水电设备有限公司,浙江杭州311231

出　　处：《热加工工艺》2008年第3期25-26,48,共3页Hot Working Technology

摘　　要：通过扫描电镜、能谱分析、磨损试验系统地研究了熔敷层金属化学成分、耐磨性、冲击断口形貌。试验结果表明,同等条件下,焊条药皮中添加稀土氧化物可以提高熔敷层耐磨性能;药皮配方中添加质量分数为1.5%的氧化铈的耐磨性强于添加1.5%的氧化钇的耐磨性。Chemical composition, wear resistance and fracture morphology of electrode deposition metal were analyzed by scanned electron microscope （SEM）, energy depressives spectrometry, and wearing test. The results show that, under the same conditions, adding RE oxides in metal of electrode can improve the resistance of hard-facing layer, and adding 1.5% cerium oxide in it is better than adding 1.5% yttrium oxide.

关 键 词：稀土氧化物 堆焊熔敷层 耐磨性 

分 类 号：TG422.1[金属学及工艺—焊接]