Microhardness on the surface layer were measured by microhardness testing machine.
利用显微硬度试验机来测量表面显微硬度。
The crack in quenching boundary of the hydraulic press plunger surface was analyzed by means of chemical composition analysis, microstructure examination and microhardness testing.
采用化学分析、金相检验和显微硬度梯度试验等方法对油压机柱塞表面淬火交界处裂纹进行了分析。
By means of optical microscopy, microhardness testing, X-ray diffractometry (XRD) and scanning electron microscopy (SEM), the oxygen-diffusion zone was characterized in the present paper.
通过金相观察、显微硬度测试、x射线衍射(XRD)及扫描电镜(SEM)分析，研究了渗氧层的结构和性能。
Microhardness testing 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。
Microhardness testing 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。
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