【摘要】 本文介绍一种适用于一般工况磨损条件下使用的新抗磨合金——Cr4Mn4型马氏体白口铸铁,研究了铸态和热处理态的组织和性能。结果表明,经750—850℃淬火及250和350℃回火后,硬度≥HRC60,並有较好的强度和韧性;经850℃淬火及250、359℃回火后,具有优良的抗磨性能?此材料成本低廉,适用于中小企业生产。更多还原

【Abstract】 In this paper a new type of wear-resistant cast iron, Cr4Mn4 martensitic white cast iron, is introduced. The structures and properties of this cast iron in the as-cast and heat treated state have been studied. The results show that the hardness is higher (≥HRC60) and a better strength and toughness are obtained after quenching at 750-850℃ and tempering at≤350℃; a better wear-resistant is obtained after quenching at 850℃ and tempering at 350℃. The cost of material can be lowered and it is appropriate for the production of medium and small factories.更多还原