50W600冷轧无取向电工钢退火过程组织和织构取向的演变  

Evolution of Structure and Texture Orientation of 50W600 Cold Rolled Non-Orientation Electrical Steel during Annealing

作　　者：张红杰[1] 金自力[1] 王玉峰[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,包头014010

出　　处：《特殊钢》2008年第2期16-17,共2页Special Steel

基　　金：内蒙古自然科学基金(200308020202)

摘　　要：通过金相和电子背散射衍射法(EBSD)研究50W600冷轧无取向电工钢(0.003%～0.008%C、0.3% Si)在700～760℃3～360 s退火水冷时的组织和织构取向演变。结果表明,随退火温度的提高,钢的再结晶率和晶粒尺寸增大,740℃退火时,当保温时间由10 s增加至360 s,再结晶率由22.5%提高到100%,平均晶粒尺寸由3.08μm增大至17.17μm。同时再结晶织构α线的取向密度下降,在15 s时{001}<110>、{112}<110>、{111} <110>、{110}<110>的取向密度均为1.5左右,γ线上{111}<011>和{111}<112>的取向密度稳定在0.25左右。Structure and texture orientation of 50W600 cold rolled non-orientation electrical steel （0. 003 ～ 0. 008C, 0. 3Si） during annealing at 700 - 760℃ for 3 -360 s, water cooling have been studied by metallography and electron back-scattering spectrum diffraction analysis. Results showed that increasing annealing temperature the rate of reerystallizafion and grain size increased; during annealing at 740℃, as annealing time increased from 10 s to 360 s, the rate of recrystallization increased from 22. 5% to 100% and average grain size increased from 3.08 μm to 17. 17μm, and the density of recrystallizafion texture at μ- fibre decreased, as annealing for 15 s the density of 10011 （110）, {112}（110）, {111} （110） and {110} （110） was about 1.5 and the density of {111} （011） and {111} （112） at T- fibre was steadily about 0. 25.

关 键 词：50W600冷轧无取向电工钢 退火 再结晶 织构 

分 类 号：TG142.15[一般工业技术—材料科学与工程]