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首页> 外文会议>International Conference on Processing amp; Manufacturing of Advanced Materials Pt.5; Jul 7-11, 2003; Leganes, Madrid, Spain >BEHAVIOR OF REDUCTION AND SINTERING IN CEMENTITE POWDER
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BEHAVIOR OF REDUCTION AND SINTERING IN CEMENTITE POWDER

机译：渗碳粉的还原和烧结行为

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In this study, the synthesis of cementite from iron oxide was firstly attempted. Then, reduction and sintering behavior of cementite powder was studied for developing a new way of steel making using cementite. It is confirmed that cementite can be obtained by the way to carbonize the iron oxide with H_2-CH_4 gas mixture. The cementite compact was completely reduced at 873K-1273K. The porosity of samples became larger than the cementite compact at the reduction below 1023K, while that became smaller above 1073K. Although the porosity of the samples became the smallest at 1273K in all samples, the some big pores remained. The best temperature for reduction and sintering was around 1123K to obtain the optimum microstructure.
机译：在这项研究中，首先尝试了由氧化铁合成渗碳体。然后，研究渗碳体粉末的还原和烧结行为，以开发一种利用渗碳体进行炼钢的新方法。证实通过与H_2-CH_4气体混合物碳化氧化铁可以得到渗碳体。渗碳体在873K-1273K时完全还原。在低于1023K时，样品的孔隙率比渗碳体大，而在1073K以上时，孔隙率小。尽管样品的孔隙率在所有样品中都最小，为1273K，但仍保留了一些大孔。还原和烧结的最佳温度约为1123K，以获得最佳的显微组织。

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