摘要
在480-750℃条件下,模拟罩式退火,利用光学显微镜、X射线衍射和金相显微硬度计研究了冷轧Ti-IF超深冲钢晶粒结构的变化,通过取向密度函数分析了再结晶过程织构演变规律。研究表明：冷轧Ti-IF超深冲钢的再结晶温度约为630℃,再结晶过程能够在660℃条件下2 h之内完成;冷轧后该钢主要有4种织构,分别是{001}〈110〉、{111}〈110〉、{111}〈112〉和{112}〈110〉;在退火再结晶过程中,{111}逐渐转变为γ-{111},当退火温度升至720℃时,{001}〈110〉和{112}〈110〉转变为纤维织构γ-{111},最终{111}〈110〉和{111}〈112〉成为主要织构类型。
The variation of grain structure of a Ti-IF steel for extra deep drawing under simulated batch annealing process at the temperature range 480-750 ℃ was studied with optical microscope,X-ray diffraction（XRD）and metallographic micro-hardness tester.The evolution rule of texture in the recrystallization process was analyzed by orientation density function（ODF）.The results showed that the recrystallization temperature of the Ti-IF steel was about 630 ℃,and the recrystallization process could be accomplished within 2hat 660 ℃.Four major textures after cold rolling were observed as follows, {001}〈110〉, {111}〈110〉, {111}〈112〉 and {112}〈110〉,respectively. During the recrystallization annealing process,texture evolved from {111}toγ-{111}.When the annealing temperature rose up to 720 ℃,texture {001}〈110〉and {112}〈110〉changed into fiber textureγ-{111},and{111}〈112〉and{111}〈110〉textures became the two main types finally.
出处
《钢铁研究》
CAS
2016年第3期24-28,共5页
Research on Iron and Steel
关键词
Ti-IF超深冲钢
罩式退火
织构
再结晶
ODF
Ti-IF steel for extra deep drawing
batch annealing
texture
recrystallization
orientation distribution function（ODF）
