实验室工作人员和我们的内部金相实验室的设备也扩大到包括切割，抛光，腐蚀和金相分析。
Laboratory staff and our in-house metallographic laboratory equipment are also expanded to include cutting, polishing, corrosion and metallographic analysis.
采用着色腐蚀技术，金相显示了球墨铸铁缩松区中奥氏体枝晶组织形貌，分析了球铁缩松的形成机制。
The morphology of austenite dendrites in shrinkage porosity in nodular iron is displayed by the color etching technique and the formation mechanism of shrinkage porosity has been analyzed.
根据扫描断口形貌和裂纹扩展途径的金相观察，还探讨了在混合溶液中的应力腐蚀机制。
The stress corrosion mechanism in mixed solutions was studied based on the metallographic observations of scanning fracture shapes and crack extension direction.
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