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通过金相显微镜进行金相观察,把金相观察中拍得的照片进行比较,分析了不同温度过热处理后同一浇注温度下得到的凝固组织。
Metallographic observation was carried out by a metallographic microscope to compare the photographs taken from the metallographic observation and to analyze the solidified structure obtained under the same pouring temperature after overheat treatment at different temperatures.