| 1. | The microstructure , structure , composition , phase of joint region , and the microstructure and composition of fracture have been analyzed using the equipment of metallurgical microscope , sem , eds , xrd and binary eutectic phase diagram for the al - cu system and diffusion theory 利用金相显微镜、扫描电镜、能谱仪、 x射线衍射分析仪,结合al - cu二元合金相图及扩散理论,分析了接头区域的形貌、组织、成分、相组成,以及断口形貌、成分。 |