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铜作为一种合金添加剂广泛地用于铁基烧结材料,根据所要求的强度,铜含量为1～10%。烧结铁-铜合金可进行沉淀硬化,这种烧结后处理可有效地改善其物理机械性能。蒸汽氧化是用于铁基烧结材料的另一种烧结后续处理。在这种处理中,烧结零件于450～650℃下与过热蒸汽相反应,结果在零件的外表面和连通孔隙网内形成一层Fe_3O_4膜。至于铜和锡的含量对烧结铁的蒸汽处理效果的影响已有过报导。比较沉淀硬化和蒸汽处理的操作温度可看出,有可能用一种烧结后续处理来获得两种处理的好处。关于烧结铁-铜合金的蒸汽处理以前报导很少。Sunter
Copper is widely used as an alloying additive in iron-based sintered materials and has a copper content of 1 to 10% based on the required strength. Sintered iron - copper alloy can be precipitation hardening, post-treatment of this sintering can effectively improve its physical and mechanical properties. Steam oxidation is another sintering follow-up treatment for iron-based sintered materials. In this treatment, the sintered part reacts with the superheated vapor at 450-650 ° C, resulting in the formation of a Fe_3O_4 film on the outer surface of the part and in the communicating aperture network. The effects of the copper and tin contents on the steam treatment of sintered iron have been reported. Comparing the operating temperatures of precipitation hardening and steaming, it can be seen that it is possible to obtain the benefits of both treatments with a sintering follow-up. Steam treatment of sintered iron-copper alloys has previously been reported infrequently. Sunter