钢材相似显微组织的分析与鉴别(续)  

Analysis and Identification of Similar Microstructure of Steels(Sequel)

作　　者：燕样样[1] 姚永红[1] 

机构地区：[1]陕西工业职业技术学院材料工程系,咸阳712000

出　　处：《理化检验（物理分册）》2013年第2期79-83,90,共6页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：陕西工业职业技术学院院内资助项目(ZK12-021)

摘　　要：在日常金相检验中,常常会观察到钢的非平衡组织中存在颜色和形态比较相似的显微组织,初学者往往容易出现误判。笔者以常用钢铁材料为例,采用常规光学显微镜,通过对组织形态、分布、颜色以及热处理工艺进行仔细比对,总结归纳了铁素体与残余奥氏体、碳化物与残余奥氏体、低碳板条马氏体与羽毛状上贝氏体以及片状马氏体与下贝氏体等几种相似显微组织的鉴别方法,以供金相检验人员参考。In the daily microstrueture testing, there are always some similar microstructures in both color and shape in the disequilibrium microstructures of steels, and they are difficuh to he identified by the new learners. With the conmlonly Llsed irons and steels as examples, by careful comparison of the microstructure shape, distribution and color with tile optical microscope combined with analyzing the heat treatment process, tile identification methods between ferrite and retained austenitc, carbide anti retained austenilc, low-carbon lath marlensite and featherlike upper bainite, and needlelike mar/ensite and needlelike lower hainite were summarized to provide reference to the metallographic workers.

关 键 词：钢铁材料 相似显微组织 鉴别 

分 类 号：TG115.213[金属学及工艺—物理冶金]