X60钢大压下变形后的微观组织  

Microstructure of X60 Steel after Heavy-deformation

作　　者：宗云[1] 赵莉萍[2] 麻永林[2] 王宝峰[2] 

机构地区：[1]山东轻工业学院机械工程系,山东济南250100 [2]内蒙古科技大学材料科学与工程学院,内蒙古包头014010

出　　处：《钢铁钒钛》2006年第2期57-62,68,共7页Iron Steel Vanadium Titanium

基　　金：内蒙古高校科学研究项目(NJ04025)

摘　　要：X60钢单道次和双道次大压下模拟变形分别在Φ130二辊实验轧机和Gleeble-1500热模拟机上进行。变形后,对热模拟试样的组织进行分析发现:变形试样的组织主要是多边形的铁素体和微量的类珠光体,在铁素体晶粒边界和晶粒内部以及位错线上有许多较细小的碳氮化物弥散析出,尺寸约为十几纳米,呈不规则分布或点列状分布。Single - pass deformation and double - pass hot compression test of X60 steel were tested respectively on the 0130 trial two- milers mill and the Gleeble- 1500 thermo- mechanical simulator. The results show the microstructure of deformed sample consists of main polygon ferrite and a little pearlite. There are a lot of dispersed Nb（C, N） precipitates in the ferrite, among the boundaries and on the dislocations. The diameter of the precipitate is about 10 nm or so, which distributed with the form of point - liner or irregular.

关 键 词：X60钢 变形工艺 微观组织 碳氮化物 热压缩试验 

分 类 号：TG115.2[金属学及工艺—物理冶金]