Ti在热轧钢板中沉淀强化行为的试验研究  

Experimental Study on Precipitation Strengthening Behavior of Ti in HotRolled Steel Plate

作　　者：王东明[1] 刘凤莲[1] 郭晓宏[1] 刘志伟[1] 谷春阳[2] 

机构地区：[1]鞍钢股份有限公司技术中心 [2]鞍钢股份有限公司热轧带钢厂

出　　处：《鞍钢技术》2008年第3期21-24,共4页Angang Technology

摘　　要：研究了低C-低Mn-Ti钢中Ti的沉淀相在加热过程中的变化规律。在传统的加热温度区间内,Ti在奥氏体中的最大固溶度约为0.14%,而TiN、Ti2S回溶量很小。在580℃卷取时,Ti的析出相尺度在5 nm以下,有很好的强化作用,Ti的析出相尺度及形态变化,对强化作用有较大影响。The change regttlars of precipitation phase of Ti in low C and low Mn - Ti steel during heating are studied. In the range of conventional heating temperature, the maximum solid solubil- ity of Ti in austenite is about 0. 14% ,while the re - disselution amount of TiN and Ti2S is small. The precipitation phase size of Ti is less than 5nm while coiling at 580℃ and strengthening efficiency is good. The size and state change of precipitation phase of Ti effect strongly on strengthening.

关 键 词：热连轧钢板 沉淀强化 回溶量 卷取温度 

分 类 号：TG156[金属学及工艺—热处理]