新型微合金非调质钢的组织与性能  

Structure and Properties of New Microalloy Non-quenched-tempered Steel

作　　者：敖青[1] 王建平[1] 王淑华[1] 李胜利[1] 

机构地区：[1]山东大学材料科学与工程学院,山东济南250061

出　　处：《热处理》2008年第4期26-29,共4页Heat Treatment

摘　　要：研制了一种新型微合金非调质钢。通过合理设计合金成分,改善熔炼脱氧过程,控制钢中氧化物的组成、分布、形状和尺寸,在研制钢中形成微细的氧化物夹杂作为晶内铁素体最有利的析出位置。晶内铁素体的析出细化了晶粒,提高了钢的强度与韧性。A new type non-quenched-tempered microalloy steel has been developed. Through reasonable design of the composition of steel, improvement on melting and deoxidizing processes and control of composition, distribution, shape and size of the oxide, the fine oxide particles as the best places for precipitation of intragranular ferrite would be produced in the developed steel. The precipitation of intragranular ferrite will refine austenite grains and enhance the strength and toughness of steel.

关 键 词：晶内析出铁素体(IGF) 非调质钢 氧化物冶金 

分 类 号：TG161[金属学及工艺—热处理] TG142.33[金属学及工艺—金属学]