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3 异构金属材料的强化机制[9]

Fig.3 The strengthening mechanism of heterostructured metallic materials[9] (a) pile-ups of geometrically necessary dislocations (GNDs) (b) strain and strain gradient versus distance from the domain interface (c) local stress versus distance from the domain interface