The quality analysis for gas nitrocarburized inner gear ring of heavy truck imported from Austria was taken by means of macro/micro-examination, hardness measuring and running test.
利用宏观分析、显微检验、硬度测试和装车试验等手段，对引进奥地利重型汽车内齿圈按照新的气体氮碳共渗工艺处理后的质量进行了研究。
The microstructure and hardness of the layer of H13 tool steel gas-nitrided in different heat treatment conditions were studied by X-ray, SEM and micro-hardness test.
采用X射线衍射、扫描电镜及显微硬度等技术，综合比较和分析了H13模具钢在不同热处理状态下经相同气体渗氮处理后表层的组织结构和硬度。
Micro-hardness test further demonstrates that interface center of aluminum alloy and galvanized steel is composed of high hardness intermetallic compounds.
显微硬度测试分析进一步证明了铝合金与镀锌钢界面中心区由硬度高的金属间化合物组成。
After grinding and polishing, test micro-Vickes's hardness of all specimens.
金相抛光后试样进行显微维氏硬度测量。
After grinding and polishing, test micro-Vickes's hardness of all specimens.
金相抛光后试样进行显微维氏硬度测量。
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