【摘要】 研究了添加石墨和铜对粉末冶金低合金钢烧结硬化性能的影响．结果表明，烧结钢的表观硬度和抗拉强度随石墨和铜含量的增加而增加，但石墨含量过高会导致烧结钢的抗拉强度降低．更多还原

【Abstract】 Study on the effects of copper and graphite on the sinterhardening properties of PM low alloy steel has been carried out. The results show that the apparent hardness and tensile strength of sintered steel are improved with the increase of copper and graphite content, but overhigh levels of graphite have deleterious effects on the tensile strength of sintered steel.更多还原