从局域应力/应变视角理解异构金属材料的强韧化行为

范国华, 缪克松, 李丹阳, 夏夷平, 吴昊

Unraveling the Strength-Ductility Synergy of Heterostructured Metallic Materials from the Perspective of Local Stress/Strain

FAN Guohua, MIAO Kesong, LI Danyang, XIA Yiping, WU Hao

图4 粗/细晶层状异构纯Ti板的晶格应变演化[40]

Fig.4 The evolution of lattice strain for grain A in layered heterostructured pure titanium with alternating coarse- and fine-grain layers[40] (φ1—Euler angle) (a) εxx, the strain component along normal direction (ND, x axis) (b) εyy, the strain component along rolling direction (RD, y axis) (c) εzz, the strain component perpendicular to ND and RD (z axis) (d) εxy, the shear strain component in the x-y plane (e) εyz, the shear strain component in the y-z plane (f) Euler angle map of grain A (g) orientation schematic diagram of grain A