The phase structure and composition of the modified layer was characterized by XRD and GDOES , and its properties were tested by microhardness meter and ball-plate wear instrument.
通过GDOES 、XRD等手段标定表层成分和相结构，借助显微硬度计和球盘磨损仪测试合金渗层的性能。
Employed by optical microscope, scanning electron microscope, microhardness tester and X ray diffraction instrument, the isothermal decomposition process of high nitrogen austenite was investigated.
利用光学显微镜、扫描电镜、显微硬度计及X射线衍射仪分析了高氮奥氏体的等温分解过程。
The composition, microstructure, and hardness of the ceramal layer were analysed with the help of EPMA, XRD and a microhardness measuring instrument.
借助EPMA，XRD和显微硬度计测定了熔覆涂层的化学成份、显微组织和显微硬度。
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