摘要
研究了20SiMnTi钢的亚温淬火工艺,结果表明,采用"940℃预淬火+780℃亚温淬火+250℃回火"工艺,可使材料得到良好的强塑性配合,抗拉强度达950MPa,屈服强度达920MPa,伸长率为20%,断面收缩率为53.4%。
The subthermal quenching technology of 20SiMnTi steel was studied.The results show that the process of pre-hardening at 940℃ and intercritical hardening at 780℃ and tempering at 250℃ can improves the coordination between strength and ductility;the tensile strength may reach 950 MPa,and the yield strength 920 MPa while the elongation is 20% and fracture contraction is 53.4%.
出处
《热加工工艺》
CSCD
北大核心
2004年第7期16-17,共2页
Hot Working Technology
关键词
亚温淬火
强度
塑性
subthermal quenching
strength
ductility
