Microstructure and hardness of the joint were analyzed by optical metallurgical microscope, EDS and micro-hardnesstester.
用金相显微镜、EDS和显微硬度计对其焊接接头进行了显微组织、成分分布和硬度分析。
2
Cross section of the coatings was observed by metallurgical microscopy. Hardness of the coatings was tested by micro-hardnesstester.
采用光学金相显微镜观察涂层断面的形貌，通过显微硬度计测试涂层的显微硬度。
3
Microstructure characteristics and mechanical properties of lap joints were researched by SEM, EPMA, EDS, micro-hardnesstester and tensile experiment machine.