Texture characteristics and tensile deformation behavior of Cu/Al layered composites prepared by cast-rolling method

• DOI: 10.1016/j.jmrt.2024.01.164
• Publication Date: 2024-01-21T09:04:23Z
• Authors: Youcheng Zhang; Aiqin Wang; Tingting Liang; Jinhao Zhang; Zhiping Mao; Jiale Ji; Jingpei Xie; Qinghua Chang; Bo Su; Shuaiyang Liu
• Keywords: Tensile testing; Texture (cosmology)

The cast-rolling composite method was used to create a Cu/Al layered composites with thickness of 5 mm. organizational structure, and strain distribution the composites, were characterized using SEM, TEM, EBSD. mechanical characteristics determined, evolution pattern interface under different strains observed, microstructures tensile deformation behaviors test material analyzed. results show that microstructure showed multilevel at interface, an Al2Cu + Al4Cu9 intermetallic compounds (IMCs) 380 nm produced. Al layer's grain size displays gradient micron scale. There are certain differences in morphology between rolling direction (RD) transverse (TD). And there large orientation grains along normal (ND). some twins Cu layer, have no obvious preferential orientation. higher plasticity than pure Al. In process fracture, cracks first initiated but did not expand directly longitudinal direction, after interfacial restraining effect reached limit, expansion into layers eventual fracture material. toughening mechanism also