... proeutectoid cementite 游离渗碳体 ; residual cementite 残留雪明碳铁 ; 遗留雪明碳铁 ; 残余渗碳体 nodular cementite 粒状渗碳体 ...
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白口铸铁中含有大量的游离渗碳体,性质脆硬,非常耐磨。
White cast iron contain a lot of free cementite, nature brittle hard, very wear-resisting.
在薄壁铸件中获得无游离渗碳体和铁素体基体的稀土球铁的关键是高碳过共晶原铁水。
Therefore, in thin section castings, for eliminating eutectic carbides and obtaining ferritic matrix, melts treated by re need high carbon content and hypereutectic composition.
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