运用膨胀法及金相显微镜观察分析35钢连续加热后冷却过程中相变特点。
To observe and analyze the phase transformations characteristics of 35 steel during cooling after continuous heating with dilatate method and metallography microscope.
借助光学显微镜、扫描电镜等手段，对用埋铸法生产的T9815气轮机组隔板断裂部位的金相组织特征，宏观和微观断口形貌等进行了研究。
The microstructure characteristics, macro and micro fracture morphology of brittle broken embedded casting closure of T9815 turbines were investigated by means of metallographical examination and SEM.
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