基板组织对Q345D正火组织性能的影响研究  

EFFECT OF MICROSTRUCTURE OF THE SUBSTRATE ON MICROSTRUCTURE AND MECHANICALPROPERTIES OF THE Q345D STEEL NORMALIZED

作　　者：李静宇[1] 管刘辉[1] 裴凤娟[1] 孔德南[1] 

机构地区：[1]安阳钢铁股份有限公司

出　　处：《河南冶金》2016年第3期13-14,56,共3页Henan Metallurgy

摘　　要：通过以不同的正火预处理模拟相应的热轧、控轧基板组织,并对正火预处理后的Q345D钢板进行最终正火热处理,重点研究了基板组织对Q345D正火钢板组织性能结构的影响,结果表明,在本试验范围内,尽管热轧和控轧正火基板组织对正火Q345D组织中铁素体晶粒尺寸有影响,但影响程度较小,且性能差别也较小。可以采用热轧代替控轧的方式生产低合金高强度正火基板,达到降耗、降低生产成本和提高生产效率的效果。The hot rolling and controlled rolling microstructure of the plate are simulated by different normalization pretreatment,and normalizing treatment of Q345 D steel plate pretreated is finally carried out,the influence of substrate structures on the microstructure and mechanical properties of the Q345 D steel plate normalized is studied. The results show that,in the range of the experiment,original microstructure affects the ferrite grain size of the Q345 D microstructure normalized,but that is a lesser extent and the difference of the mechanical properties is smaller. It can be used hot- rolling in place of controlled rolling to produce the high- strength low- alloy steel plate normalized,in order to reduce energy and production costs and improve production efficiency.

关 键 词：Q345D 正火 组织 基板 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG156.4[金属学及工艺—金属材料]