由方坯直接轧制的型钢组织与力学性能研究  

Study on Microstructure and Mechanical Properties of Profile Steel Rolled by Square Billet

作　　者：郝晋阳[1] 冯光宏[1] 张宏亮[1] 

机构地区：[1]钢铁研究总院冶金工艺研究所,北京100081

出　　处：《热加工工艺》2017年第1期117-119,122,共4页Hot Working Technology

基　　金：国家科技支撑计划(十二五)项目(2013BAE07B04)

摘　　要：直接轧制工艺是一项重大的节能降成本的技术。为了探究直接轧制工艺产品的组织与力学性能的特点,本文进行了现场试验。通过控制开轧温度,研究了150 mm×150 mm方坯直接轧制时开轧温度(900~1000℃)对其产品组织和性能的影响。结果表明,随着开轧温度降低,产品铁素体晶粒细化,铁素体占比降低;试验产品的晶粒度为11级,直接轧制可以获得较传统轧制更加细化的晶粒。Direct rolling process is a great technology of energy saving and cost reduction. In order to explore the characteristics of microstructure and mechanical properties of direct rolling process, the field test was carried out. The effects of rolling temperature （900-1000℃） on the microstrucmre and mechanical properties for products during direct rolling of 150 mm×150 mm square billet were studied by controlling the rolling temperature. The results show （hat with the decrease of rolling temperature, the ferrite grain size of products is refined, and the proportion of the ferrite decreases. The grain size of the experiment products is 11 grade. Direct rolling can obtain finer grain compared with traditional rolling process.

关 键 词：直接轧制 开轧温度 显微组织 力学性能 

分 类 号：TG335.11[金属学及工艺—金属压力加工]