The failure mechanism was analyzed on automobile hot-forging dies by means of EDS,micro-hardness and metallographic examination.
对汽车用轴类部件的热锻模具进行失效分析。 通过能谱分析、扫描电镜、显微硬度测定等多种检测手段,分析了热锻模具的失效机理。
参考来源 - H13钢汽车热锻模具失效机理分析Reasonable technology of MM will make the organization and micro-hardness of synthesis products more uniformity.
采用合理的球磨工艺使合成反应产物的组织和显微硬度均匀化。
参考来源 - Ni·2,447,543篇论文数据，部分数据来源于NoteExpress
The effect of nitriding on micro-hardness was also discussed.
讨论了影响改性层硬度的因素。
Conclusion There was a significance difference on micro-hardness of light-cured composite resins.
结论：不同材料的光敏树脂其聚合后的显微硬度存在差异。
This paper presents a micro-hardness testing method, namely depth-hardness testing with nanometer scale.
阐述了一种纳米尺度下测试材料显微硬度的试验方法——深度硬度试验法。
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