Zr含量对微合金钢组织和性能的影响  

Effects of Zr Content on Microstructure and Properties of Micro-alloyed Steels

作　　者：习天辉[1] 陈晓[1] 李平和[1] 刘继雄[1] 黄静[1] 袁泽喜[2] 许伯藩[2] 刘静[2] 

机构地区：[1]武汉钢铁集团公司技术中心,湖北武汉430080 [2]武汉科技大学材料与冶金学院,湖北武汉430081

出　　处：《武汉科技大学学报》2003年第4期339-342,373,共5页Journal of Wuhan University of Science and Technology

摘　　要：研究了Zr含量对微合金钢组织和性能的影响。低碳含Zr钢的组织为铁素体+珠光体,随着Zr含量增加,钢中含Zr夹杂物的尺寸有所增大。微合金钢中添加的Zr,对钢的强度和塑性影响不大;Zr含量在0.01%～0.03%时,单位面积夹杂物颗粒数较少,微合金钢的低温韧性最好。Effects of Zr content on the microstructure and properties of micro-alloyed steels have been investigated. The microstructure of Zr-doped steels is found to be ferrite and pearlite. With the increase of Zr content, the size of inclusions containing Zr increases appreciably. Effects of Zr added in micro-alloyed steels on the steel strength and ductility is not distinct. When Zr content ranges from 0.01% to 0.03%(weight percentage), the amount of inclusions per area is smaller and the low temperature toughness of Zr-doped micro-alloyed steels is the best.

关 键 词：ZR 微合金钢 组织 性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]