【摘要】 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。更多还原

【Abstract】 For sintereed ferrous alloys, Fe-P alloying is one of the efficient methods used for improving and increasing the strength and toughness of iron base P/M products. The addition of given amounts of conpper into Fe-P-C sintered alloys reduces sintering shrinkge as well as further improves mechanical properties, The paper emphatically discussed the relationship between composition, microstructure and properties of Fe-P-C-Cu sintered alloys. The effects of different copper and carbon contents and sintering temperatures on microstructure, mechanical properties and sintering shrinkage of alloys are also described.更多还原