纳米改性高铬铸铁的划痕行为研究  

Research on Scratch Behavior of High Chromium Cast-iron of Nano-modifier

作　　者：邢小红[1] 刘赛月[1] 王铀[1] 初瑞清[1,2] 

机构地区：[1]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001 [2]聊城大学材料科学与工程学院,山东聊城252000

出　　处：《热处理技术与装备》2015年第3期37-44,共8页Heat Treatment Technology and Equipment

摘　　要：本文研究了常规锤头、加入与未加入纳米改性剂的高铬铸铁样品的划痕行为,对划痕表面形貌和截面组织进行了对比分析,并研究三种高铬铸铁样品在划痕试验过程中摩擦系数变化及它们的划痕抗力。结果表明:改性剂加入后,高铬铸铁样品的摩擦力、摩擦系数降低,划痕抗力提高,耐磨性更好。In this paper, the scratch behavior of conventional hammer of high chromium cast iron speci- mens with and without nano-modifier were mainly studied. The surface morphology and cross-sectional mi- crostruetures of specimen after scratching were contrastively analyzed. The change of friction coefficient and their scratch resistance of three kinds of specimens were researched during scrstch test. Results show that the force of friction and friction coefficient are decreased, and the scratch resistance is incressed and wear resistance is better after adding nano-modifier,.

关 键 词：高铬铸铁 纳米改性 划痕 

分 类 号：TG143[一般工业技术—材料科学与工程]