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利用电镜分析了球墨铸铁等温淬火处理后的贝氏体形貌。结果表明,在不同淬火温度和保温时间下形成不同的贝氏体形貌。残余奥氏体内有针状或“M”型马氏体析出。
The morphology of bainite after isothermal quenching of ductile iron was analyzed by electron microscope. The results show that different bainite morphologies are formed at different quenching temperatures and holding time. Residual austenite acicular or “M” type martensite precipitation.