抚顺特钢有限公司技术中心,抚顺 113001
庞学东(1983—),男,高级工程师; E-mail : xuedong0610@163.com
收稿:2024-10-10,
纸质出版:2025-05-30
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庞学东,梁晓东,孙勇等.回火温度对高Co-Ni二次硬化钢显微组织和力学性能的影响[J].特殊钢,2025,46(03):96-101.
Pang Xuedong,Liang Xiaodong,Sun Yong,et al.Effect of Tempering Temperature on Microstructure and Mechanical Properties of High Co-Ni Secondary Hardening Steel[J].Special Steel,2025,46(03):96-101.
庞学东,梁晓东,孙勇等.回火温度对高Co-Ni二次硬化钢显微组织和力学性能的影响[J].特殊钢,2025,46(03):96-101. DOI: 10.20057/j.1003-8620.2024-00209.
Pang Xuedong,Liang Xiaodong,Sun Yong,et al.Effect of Tempering Temperature on Microstructure and Mechanical Properties of High Co-Ni Secondary Hardening Steel[J].Special Steel,2025,46(03):96-101. DOI: 10.20057/j.1003-8620.2024-00209.
采用光学显微镜(OM),扫描电镜(SEM),JMat Pro软件以及拉伸试验等研究了380~620 ℃回火对双真空熔炼的二次硬化钢显微组织及力学性能的影响。试验结果表明,在380~620 ℃回火,试验钢基体组织随着回火温度的升高,由回火板条马氏体转变为回火索氏体,同时奥氏体增多;抗拉强度和屈服强度数值在440 ℃时达到峰值,这可能和回火时析出的Fe
3
C导致试验钢强度升高有关;在440~620 ℃回火时抗拉强度和屈服强度逐渐下降,伸长率和断面收缩率则逐渐上升。此外,冲击断口断裂形式由准解理断裂
向韧性断裂+准解理断裂转变。综合试验结果发现,试验钢在496 ℃回火时,力学性能最佳,可以达到较好的强韧化匹配。
The effects of tempering at 380 ℃- 620 ℃ on the microstructure and mechanical properties of the double-vacuum smelting secondary hardening steel were studied by optical microscope (OM), scanning electron microscope (SEM), JMat Pro software and tensile test. The test results showed that when tempering at 380 ℃-620 ℃, the matrix of the test steel changes from tempered lath martensite to tempered sorbite with the tempering temperature increasing, while the austenite increases. The tensile strength and yield strength reached their peak value at 440 ℃, which may be related to the increase of the strength of the test steel caused by the precipitation of Fe3C during tempering. The tensile strength and yield strength gradually decreased when tempering at 440 ℃- 620 ℃. Elongation and section shrinkage gradually increased. In addition, the fracture form of impact fracture changes from quasi-cleavage fracture to ductile fracture + quasi-cleavage fracture. The comprehensive test results showed that the test steel has the best mechanical properties when tempered at 496 ℃, and can achieve better strength and toughness matching.
周 敏 , 厉 勇 , 黄顺喆 , 等 . 奥氏体化温度对二次硬化渗碳钢组织与力学性能的影响 [J]. 金属热处理 , 2017 , 42 ( 2 ): 108 - 112 .
Kuehmann C J , Olson G B . Computational materials design and engineering [J]. Materials Science and Technology , 2009 , 25 ( 4 ): 472 - 478 .
罗海文 , 沈国慧 . 超高强高韧化钢的研究进展和展望 [J]. 金属学报 , 2020 , 56 ( 4 ): 494 - 512 .
王晨充 , 张 弛 , 杨志刚 , 等 . 高Co-Ni二次硬化钢的设计准则与时效工艺分析 [J]. 金属学报 , 2017 , 53 ( 2 ): 175 - 182 .
Veerababu R , Satya Prasad K , Phani S K , et al . Austenite stability and M2C carbide decomposition in experimental secondary hardening ultra-high strength steels during high temperature austenitizing treatments [J]. Materials Characterization , 2018 , 144 : 191 - 204 .
Morsdorf L , Emelina E , Gault B , et al . Carbon redistribution in quenched and tempered lath martensite [J]. Acta Materialia , 2021 , 205 : 116521 .
Perez M , Deschamps A . Microscopic modelling of simultaneous two-phase precipitation: Application to carbide precipitation in low-carbon steels [J]. Materials Science and Engineering: A , 2003 , 360 ( 1-2 ): 214 - 219 .
胡正飞 , 吴杏芳 , 王春旭 . 二次硬化合金钢中多组元强化相M2C碳化物的粗化动力学研究 [J]. 金属学报 , 2003 , 39 ( 6 ): 585 - 591 .
胡生双 , 史利利 , 何 坤 , 等 . 回火保温时间对A-100钢力学性能和组织的影响 [J]. 金属热处理 , 2021 , 46 ( 2 ): 140 - 143 .
赵艳丽 , 王 强 , 杨庆祥 , 等 . 喷丸工艺参数对A-100高强度钢残余应力场的影响 [J]. 金属热处理 , 2013 , 38 ( 8 ): 10 - 14 .
胥宏 . 机械基础 [M]. 成都 : 电子科技大学出版社 , 2013 .
吉 祥 . 18Ni(350)超高强度马氏体时效钢强韧化机理研究及性能优化 [D]. 秦皇岛 : 燕山大学 , 2021 .
梁冬梅 , 朱远志 , 刘光辉 . 马氏体时效钢的研究进展 [J]. 金属热处理 , 2010 , 35 ( 12 ): 34 - 39 .
徐东东 , 陈旸 , 许昊 , 等 . 超高强度马氏体时效钢研究进展 [J]. 精密成形工程 , 2021 , 13 ( 5 ): 100 - 108 .
Vasudevan V K , Kim S J , Wayman C M . Precipitation reactions and strengthening behavior in 18 Wt Pct nickel maraging steels [J]. Metallurgical Transactions A , 1990 , 21 ( 10 ): 2655 - 2668 .
章伟钢 , 周 芸 , 刘少尊 , 等 . Mo与Co含量对18 Ni马氏体时效钢性能的影响 [J]. 金属热处理 , 2018 , 43 ( 4 ): 48 - 52 .
HU Zheng-fei , WU Xing-fang , LI Xiu-qiu , et al . M 2 C Precipitate in Isothermal Tempering of High Co-Ni Alloy Steel [J]. Journal of Iron and Steel Research (International) , 2001 , 8 ( 2 ): 5658 .
Wang C C , Zhang C , Yang Z G . Effects of Ni on austenite stability and fracture toughness in high Co-Ni secondary hardening steel [J]. Journal of Iron and Steel Research International , 2017 , 24 ( 2 ): 177 - 183 .
李建凯 . 2100 MPa高韧性二次硬化型超高强度钢组织与性能的研究 [D]. 西安 : 西安建筑科技大学 , 2015 .
汪向荣 . AerMet100钢热变形行为与热处理组织性能及其第一性原理表征 [D]. 哈尔滨 : 哈尔滨工业大学 , 2009 .
上海交通大学《金属断口分析》编写组 . 金属断口分析 [M]. 北京 : 国防工业出版社 , 1979 : 95 - 102 .
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