新型微合金非调质钢的研究  

Study and applications of new microalloy non-quenched-tempered steel

作　　者：王淑华[1] 敖青[1] 

机构地区：[1]山东大学材料科学与工程学院

出　　处：《山东建筑大学学报》2007年第4期343-346,共4页Journal of Shandong Jianzhu University

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。通过晶内铁素体的析出细化了晶粒,提高了钢的强度与韧性。将研制的新型微合金非调质钢用于拖拉机的牵引插销是可行且有效的。New microalloy non-quenched-tempered steel was studied. The composition, distribution, shape and size of fine oxide particles, which would be the best places for the precipitation of intragranular ferrite in steel, were optimized through proper design of the components of the alloy and improvements of deoxidization in smelting. The existence of intragranular ferrite can refine austenite grains and enhance the strength and toughness of the steel. It is feasible and resulfful to use the new microalloy non-quenched-tempered steel in traction plugs of tractors.

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]