热处理工艺对40CrNi2Mo钢性能的影响  

Effect of Heat Treatment Process on Properties of 40CrNi2Mo Steel

作　　者：曹国珍 郑泽花 周水波 

机构地区：[1]三一重工股份有限公司,湖南长沙410100

出　　处：《热加工工艺》2013年第22期170-172,175,共4页Hot Working Technology

摘　　要：采用试验的方法,研究热处理工艺对40CrNi2Mo钢性能的影响。结果表明:通过在快速淬火油中850℃淬火+550℃回火的热处理工艺,40CrNi2Mo钢的组织为均匀回火索氏体,屈服强度大于1100 MPa,平均冲击功大于60 J,达到良好强韧性配合,获得最佳综合性能。The effects of heat treatment process on properties of 40CrNi2Mo steel were investigated by testing method. The results show that the microstructure of 40CrNi2Mo steel after quenched in quick oil at 850 ℃ and tempered at 550 ℃ is tempered sorbite. It gets a good combination of strength and toughness, while the yield strength is higher than 1100 MPa and the imoact strength is hieher than 60J. The mechanical properties in quenched and tempered conditions are preferable.

关 键 词：40CRNI2MO钢 热处理工艺 力学性能 

分 类 号：TG156.3[金属学及工艺—热处理]