加热温度对HRB400钢奥氏体晶粒度的影响研究  

Study of Heat up Temperature Influence the Austenitic Grain Size in HRB400 Rebar Steel

作　　者：谢静[1] 郭湛[1] 完卫国[1] 

机构地区：[1]马钢股份有限公司技术中心,安徽马鞍山243000

出　　处：《安徽冶金科技职业学院学报》2014年第2期4-7,共4页Journal of Anhui Vocational College of Metallurgy and Technology

基　　金：国家科技支撑计划项目课题。批准文号:2007BAE30B02

摘　　要：介绍了铌微合金化处理工艺FIRB400钢在不同的加热温度下对奥氏体晶粒度的影响。结果表明：在相同的加热温度下Nb含量高的奥氏体晶粒细，加入Nb合金有利于阻止加热时的奥氏体晶粒长大；Nb含量较高时轧制加热温度应略高于1150℃；Nb含量较低时轧制加热温度应略高于1050℃～1100℃。This text introduce use Nilbium -microallying technics in different heat up tempera- ture influence the austenitic grain size, the Nilbium content influence the austenitie grain size. The re- suits showed that the high content of Nb in the heating temperature of the austenite grain size is fine, join Nb alloy in favor of austenite grain gTowth during stop heating; temperature rolling heating high Nb content should be slightly higher than 1150 ℃; rolling heating temperature with low content of Nb should be slightly higher than 1050℃ - 1100 ℃.

关 键 词：HRB400 铌微合金化 晶粒度 

分 类 号：TG142.25[一般工业技术—材料科学与工程]