含镍低铬铸铁腐蚀磨损性能研究  

Study on Corrosion-abrasion Characteristic of Low Chromium Cast lron Containing Nickel

作　　者：侯锦岭[1] 谢敬佩[1] 王文焱[1] 王爱琴[1] 李洛利[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2008年第1期4-7,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：河南科技大学科研基金项目(2006zy053);河南省杰出人才创新基金项目(0621000600)

摘　　要：采用MCF-30型冲蚀磨损试验机对两种不同热处理后的低铬铸铁进行冲蚀磨损实验。用扫描电镜(SEM)和X衍射仪等对其组织以及冲蚀后的形貌进行观察分析。实验结果表明,残余奥氏体的存在严重影响了低铬铸铁的耐磨性能;在冲蚀磨损中,过低的冲击韧性导致其表面成块状脱落,耐磨性差。Erosion wear experiments were done for low-chromium cast iron containing nickel with two different heat treatments by MCF-30 erosion test machine.Scanning electron microscopy(SEM) and X-ray diffraction(XRD) were used to analyze the structure and surface morphology of these samples.The experimental results indicate that the existence of retained austenite severely decreases the wear resistance property of low-chromium cast iron.In the erosion wear,too low impact toughness leads to block-form separating from the surface and poor wear resistance.

关 键 词：冲蚀磨损 热处理 低铬铸铁 组织 形貌 

分 类 号：TH117.1[机械工程—机械设计及理论] TG174.2[金属学及工艺—金属表面处理]