【摘要】 对40Cr钢亚温淬火氮碳共渗处理工艺和传统调质工艺进行对比试验研究,结果表明,40Cr经亚温淬火后较完全淬火在硬度、抗拉强度和屈服强度上稍有下降,但延伸率和冲击韧度有较大提高,氮碳共渗处理后表面硬度极大提高。更多还原

【Abstract】 The mechanical performances of 40Cr steel experienced intercritical quenching nitrocarburizing and traditional quenching and tempering was compared,the results indicated that the hardness and toughness of 40Cr steel slightly decreased,the ductility and toughness improved greatly,the hardness of 40Cr steel experienced nitrocarburizing improved sharply.更多还原