30CrMnSiA钢亚温淬火工艺研究  

Research on Sub-temperature Quenching Process of 30CrMnSiA Steel

作　　者：马跃新[1] 周子年[2] 

机构地区：[1]中山火炬职业技术学院,广东中山528436 [2]上海大学,上海200072

出　　处：《热加工工艺》2009年第8期151-153,共3页Hot Working Technology

摘　　要：对30CrMnSiA钢的亚温淬火工艺进行了研究。结果表明,原始非平衡组织对亚温淬火的效果影响不明显,采用非平衡组织进行亚温淬火,在强度和硬度不降低的情况下,其冲击韧度比常规调质处理提高一倍以上,塑性也大幅度提高;亚温淬火能够明显抑制钢的可逆回火脆性。The sub-temperature quenching process of 30CrMnSiA steel was investigated. The results show that the influence of primitive non-balance structures on sub-temperature quenching effects is not obvious. Sub-temperature quenching was carried out by adopting the non-balance structure. The impact toughness of sub-temperature quenching is higher than that of the convention quenching ＋ high-temperature tempering treatment, and the plasticity also enhances greatly when the strength and hardness do not decrease. The sub-temperature quenching can obviously suppress the reversible temper brittleness of steels.

关 键 词：30CRMNSIA钢 亚温淬火 回火脆性 非平衡组织 

分 类 号：TG156.3[金属学及工艺—热处理]