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在铁基粉末合金中,采取铁磷合金化,是改善和提高铁基粉末冶金制品的强度和韧性的有效方法之一。在Fe—P—C三元系合金的基础上添加一定量的铜元素,不仅可以减少合金的烧结收缩,而且能够进一步提高合金的机械性能。本文着重讨论了Fe—P—C—Cu合金的成分、组织与性能之间的关系,研究了不同的铜含量、碳含量和烧结温度对合金的组织、机械性能及烧结收缩的影响规律。
In iron-based powder alloys, the use of iron-phosphorus alloying is one of the effective ways to improve and enhance the strength and toughness of iron-based powder metallurgy products. Fe-P-C ternary alloy based on the addition of a certain amount of copper, not only can reduce the sintering shrinkage, and can further improve the mechanical properties of the alloy. This paper focuses on the relationship between the composition, microstructure and properties of Fe-P-C-Cu alloys and the influence of different copper content, carbon content and sintering temperature on the microstructure, mechanical properties and sintering shrinkage of the alloy.