热处理工艺对40CrMnMo钢低温冲击韧性的影响

特殊钢 ›› 2020, Vol. 41 ›› Issue (5): 68-70.

热处理工艺对40CrMnMo钢低温冲击韧性的影响

张越^1,2,曾云^1,2, 郑锦峰^1,2, 陈君^1,2, 伍伟^1,2,

1大冶特殊钢有限公司技术中心，黄石435001 ；
2高品质特殊钢湖北省重点实验室，黄石435001

收稿日期:2020-05-03 出版日期:2020-10-01 发布日期:2022-05-06
作者简介:张越(1987-),男，工程师,2010年武汉科技大学(本科)毕业,热处理材料的开发和研究。

Effect of Heat Treatment Process on Low Temperature Impact Toughness of 40CrMnMo Steel

Zhang Yue^1,2, Zeng Yun^1,2, Zheng Jinfeng^1,2, Chen Jun^1,2 , Wu Wei^1,2

1 Technology Center,Daye Special Steel Co Ltd；
2 Hubei Key Laboratory of High Quality Special Steel, Huangshi ,435001

Received:2020-05-03 Published:2020-10-01 Online:2022-05-06

摘要/Abstract

摘要： 通过不同的热处理制度:800、820℃低温淬火+600℃回火,880℃+860℃两次淬火+600℃回火和860℃一次淬火+600℃回火,对40CrMnMo钢进行热处理试验,并研究了三种热处理工艺对40CrMnMo试验钢组织和性能的影响。结果表明,三种热处理工艺的试验钢抗拉强度相近(936～951 MPa),组织为回火马氏体+铁素体,采用800、820℃低温淬火+600℃回火热处理工艺,试验钢的冲击功最高(65～69J)。

Abstract: Through different heat treatment processes：800、820 ℃ low temperature quenching + 600℃ tempering、 880 °C +860 °C twice quenching + 600℃ tempering and 860 °C once quenching + 600 °C tempering,the heat treatment experiment on 40CrMnMo steel has been carried out to study the effects of three kinds of heat treatment processes on the microstructure and properties of the 40CrMnMo steel. The results show that the tensile strength of tested steel by the three kinds of heat treatment processes is similar (936 ~951 MPa) ,and the microstructures is tempered martensite + ferrite,the impact energy of tested steel of (800、820 °C ) low temperature quenching and 600 °C tempering heat treatment processes is highest (65 ~69 J).

张越, 曾云, 郑锦峰, 陈君, 伍伟. 热处理工艺对40CrMnMo钢低温冲击韧性的影响[J]. 特殊钢, 2020, 41(5): 68-70.

Zhang Yue, Zeng Yun , Zheng Jinfeng , Chen Jun , Wu Wei. Effect of Heat Treatment Process on Low Temperature Impact Toughness of 40CrMnMo Steel[J]. Special Steel, 2020, 41(5): 68-70.