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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 structure of the cold-rolled Ti-IF ultra-deep drawn steel was studied by means of optical microscope, X-ray diffraction and metallographic microhardness tester under the condition of 480-750 ℃, and the recrystallization was analyzed by the orientation density function The evolution of process texture. The results show that the recrystallization temperature of cold-rolled Ti-IF ultra-deep drawn steel is about 630 ℃, and the recrystallization process can be completed within 2 h at 660 ℃. There are mainly four kinds of textures after cold rolling, which are {111} <110>, {111} <112> and {112} <110>. During the annealing recrystallization, {111} gradually changes to γ- {111} When the temperature was raised to 720 ° C, {001} <110> and {112} <110> were transformed into the fiber texture γ- {111}, and the final {111} <110> and {111} <112> became the main texture types.