21Cr - 10Ni - 3Mo duplex stainless steel high temperature deformation microstructures

Data includes EBSD orentation maps of the specimens deformed in torsion at 1200 degrees celsius to strains of 0.1, 0.5, 0.9 and 1.3. The phase ratio is about 60% austenite and 40% ferrite. The miscrostructure is dynamically recovered and there is also some dynamic recrystallisation at strains of 0.9 and 1.3. The main portion of softening can be attributed to dynamic subgrain coalescence in austenite.

本数据集包含经1200℃扭转变形至应变分别为0.1、0.5、0.9和1.3的试样的电子背散射衍射（Electron Backscattered Diffraction, EBSD）取向分布图。试样的相体积占比约为60%奥氏体（Austenite）与40%铁素体（Ferrite）。该微观组织发生了动态回复，当应变为0.9和1.3时还伴随有少量动态再结晶（Dynamic Recrystallisation）。材料软化的主要机制可归因于奥氏体中的动态亚晶合并（Dynamic Subgrain Coalescence）。