Microhardness on the surface layer were measured by microhardnesstesting machine.
利用显微硬度试验机来测量表面显微硬度。
2
Microhardnesstesting during aging treatment in high purity steel bearing copper was carried out.
对经时效处理后的含铜高纯钢进行了显微硬度测试。
3
The crack in quenching boundary of the hydraulic press plunger surface was analyzed by means of chemical composition analysis, microstructure examination and microhardnesstesting.