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首页> 外文会议>European Congress and Exhibition on Powder Metallurgy (EURO PM2001) Vol.1, Oct 22-24, 2001, Nice, France >Research on Obtaining Carbon Steel Sintered Compacts by Sintering Mixtures of Iron - Cast Iron Powders
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Research on Obtaining Carbon Steel Sintered Compacts by Sintering Mixtures of Iron - Cast Iron Powders

机译：铁铸铁粉末烧结混合物制备碳钢烧结体的研究。

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摘要

The authors' research about producing carbon steel by sintering belnds of iron -cast iron powders are presented. A method to determine the optimum time for the homogenization process of the powders mixture was developed. The compressibility of the iron - cast iron powders mixture decreases with increasing of the cast iron quantity. The sintering experiments were performed in endogas, N_2-H_2-CH_4 and vacuum atmosphere. The dimensional shrinkage and sintered density as a function of the sintering conditions are presented. Compacts sintered in endogas atmosphere with a carbon potential of 0.4 show a structure with lamellar pearlite and ferritic grains corresponding to 0.4 (wt)%C. For samples with initial content of 0.8 (wt) %C sintered in endogas atmosphere only one homogeneous structure of pearlite with a fine ferrite network was obtained. Hardness measurements and pin on disc tests were performed too.
机译：提出了关于通过烧结铸铁粉的生皮生产碳钢的研究。开发了一种确定粉末混合物均质过程的最佳时间的方法。铁-铸铁粉末混合物的可压缩性随着铸铁量的增加而降低。烧结实验在尾气，N_2-H_2-CH_4和真空气氛中进行。提出了尺寸收缩率和烧结密度随烧结条件的变化。在碳的碳势为0.4的尾气中烧结的压坯显示出层状珠光体和铁素体晶粒对应于0.4（wt）％C的结构。对于在尾气中烧结的初始含量为0.8（wt）％C的样品，只能获得一种具有精细铁素体网络的均匀珠光体结构。也进行了硬度测量和圆盘销钉测试。

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