高锰钢马氏体生长的3D+OIM分析
3D+OIM Analysis of Martensitic growth in high manganese steel
采用FIB(focused ion beam)和EBSD(electron backscatter diffraction)技术，对高锰钢马氏体生长行为进行3D(three dimension)-OIM(orientation imaging microscopy)取向成像分析，构建了各晶粒的3D形貌。结果表明，高锰钢中以板条状为主的a￠马氏体根据各自长大能力、相邻晶粒阻力和局部应力的差异，除板条状外，还可生成块状或不规则形状；热致板条马氏体界面平直，形变诱发板条马氏体的界面会由于应力作用而发生弯曲变形；变体选择还会造成马氏体晶粒粗化；根据3D不同层间界面迹线的变化初步确定热致马氏体惯习面为{225}型。
ombined FIB with EBSD，3D-OIM analysis of martensitic growth in a high manganese steel was programed, and grain morphologies was structured. The results show that grain morphologies of α＇-M mainly presenting lamellen also could be cylindry and inregular shape with different growth ability, resistance of neighboring grains and local stress. The interfaces of thermal-induced lamellar grains are straight, while the ones of stress-induced lamellar grains are flexuous due to the external stress. Variant selection induces martensitic grain coarsening . According to the changing of interfacial trace on different slices, thermal- induced martensitic interface is determined to be close to {225} preliminary.
王会珍、毛卫民、杨平
材料科学金属学、热处理钢铁冶炼
高锰钢EBSDFIB形貌形变惯习面
High manganese steelEBSDFIBGrain morphologyDeformationHabit plane
王会珍,毛卫民,杨平.高锰钢马氏体生长的3D+OIM分析[EB/OL].(2011-07-18)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201107-251.点此复制
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