Microstructure distribution and peak temperature model of 65Mn steel during laser surface treatment

doi:10.13251/j.issn.0254-6051.2024.01.040

Abstract

Abstract: Laser surface treatment of 65 Mn steel for agricultural machinery was carried out by using high power semiconductor laser. The effects of laser power (1.5-2.5 kW) and scanning speed (20-40 mm/s) on the microstructure and hardness distributions were studied. The temperature distribution during laser surface treatment was simulated by using ABAQUS software, the variation law of temperature field was analyzed, and the mathematical model of peak temperature was established. The results show that after laser surface treatment, the hardened layer of the 65Mn steel is composed of martensite and retained austenite, and the content of retained austenite decreases with the increase of depth from the surface. The depth of the hardened layer is 80-680 μm, and the hardness is 800-970 HV0.5. In addition, the simulation results show that the peak temperature increases with the decrease of scanning speed and the increase of laser power, and decreases with the increase of depth from the surface. The established peak temperature model is in good agreement with the simulation results, and the culculation results of the hardened layer depth are in good agreement with the measured values.

Key words: 65Mn steel, laser surface treatment, microstructure, hardness, peak temperature

CLC Number:

TG178

Guo Shuaihan, Li Zhenxing, Cen Yiming, Zhu Yanming, Chen Fengchen, Yang Mingtao, Kong Jia. Microstructure distribution and peak temperature model of 65Mn steel during laser surface treatment[J]. Heat Treatment of Metals, 2024, 49(1): 249-256.

References

[1]王宏宇, 赵玉凤, 许晓静, 等. 热处理对 65Mn 钢表面渗硼层组织和性能的影响[J]. 材料热处理学报, 2012, 33(12): 142-146.
Wang Hongyu, Zhao Yufeng, Xu Xiaojing, et al. Effects of heat treatment on microstructure and properties of boriding layer on 65Mn steel[J]. Transactions of Materials and Heat Treatment, 2012, 33(12): 142-146.
[2]Korotkov V A, Rastegaev I A, Rastegaeva I I, et al. A study of the wear resistance of chromium cladding by dry friction on steel and an abrasive[J]. Journal of Friction and Wear, 2020, 41(1): 52-57.
[3]Li A M, Hu M J. Microstructure and properties of 65Mn steel after austenite inverse phase transformation by sub-temperature quenching[J]. Advanced Materials Research, 2011, 194-196: 89-94.
[4]Yuan X M, Wang H Y, Zhao Y F, et al. Process design of strengthening and toughening treatment for 65Mn steel by powder RE-boronizing method under low temperature[J]. Advanced Materials Research, 2014, 941-944: 1414-1419.
[5]Dong C J, Zhang J H, Xu J Y, et al. Microstructures and properties of electrical discharge strengthened layers on 65Mn steel[J]. Applied Surface Science, 2011, 257(7): 2843-2849.
[6]Yu J M, Zhou H T, Zhang L W, et al. Microstructure and properties of modified layer on the 65Mn steel surface by pulse detonation-plasma technology[J]. Journal of Materials Engineering and Performance, 2022, 31(2): 1562-1572.
[7]Hafeez M A. Microstructural and mechanical properties of one-step quenched and partitioned 65Mn steel[J]. Arabian Journal for Science and Engineering, 2021, 46(3): 2261-2267.
[8]Wang H Y, Zhao Y F, Yuan X M, et al. Effects of boronizing treatment on corrosion resistance of 65Mn steel in two acid mediums[J]. Physics Procedia, 2013, 50: 124-130.
[9]赵玉凤, 王宏宇, 王荣, 等. 旋耕刀用65Mn钢表面渗铬工艺优化及其耐磨性研究[J]. 农业化研究, 2012, 34(10): 156-160.
Zhao Yufeng, Wang Hongyu, Wang Rong, et al. Study on process optimization of surface chromizing for 65Mn steel used in rotary blade and its wear resistance[J]. Journal of Agricultural Mechanization Research, 2012, 34(10): 156-160.
[10]Li H, Kang M, Ndumia J N, et al. Influence of heat treatment on microstructure and properties of high-velocity arc-sprayed Fe-based-Al₂O₃-B₄C coating[J]. Journal of Materials Engineering and Performance, 2022, 31(12): 9878-9887.
[11]Yu J M, Zhou H T, Zhang L W, et al. Microstructure and properties of modified layer on the 65Mn steel surface by pulse detonation-plasma technology[J]. Journal of Materials Engineering and Performance, 2022, 31(2): 1562-1572.
[12]Chen J S, Li Z X, Chu Y J, et al. Microstructure distribution and grain coarsening model of GCr15 steel in the laser surface treatment[J]. Metals and Materials International, 2022, 28(10): 2318-2329.
[13]Chen K Y, Yang X F, Li W Y, et al. Study on the wear and corrosion resistance of Fe-Mo coatings on 65Mn steel ploughshares by laser cladding[J]. Applied Physics A, 2022, 128(9): 795.
[14]Khomyakov M N, Pinaey P A, Statsenko P A, et al. Laser-plasma surface modification of steels and Fe-based alloys[J]. AIP Conference Proceedings, 2019, 2098(1): 020009.
[15]杜成明, 朱锦云, 杨振, 等. 65Mn弹簧钢表面激光淬火的显微组织及性能研究[J]. 机械工程师, 2020(3): 52-53, 56.
Du Chengming, Zhu Jinyun, Yang Zhen, et al. Study on laser quenched surface microstructure and properties of 65Mn spring steel[J]. Mechanical Engineer, 2020(3): 52-53, 56.
[16]王宏立. 65Mn钢表面激光熔覆铁基合金组织及摩擦磨损性能[J]. 应用激光, 2016, 36(4): 385-390.
Wang Hongli. Microstructure and tribological behavior of iron-based alloy coating on surface of 65Mn steel by laser cladding[J]. Applied Laser, 2016, 36(4): 385-390.
[17]Hu L F, Li J, Lü Y H, et al. Corrosion behavior of laser-clad coatings fabricated on Ti6Al4V with different contents of TaC addition[J]. Rare Metals, 2020, 39(4): 436-447.
[18]Liu X B, Meng X J, Liu H Q, et al. Development and characterization of laser clad high temperature self-lubricating wear resistant composite coatings on Ti-6Al-4V alloy[J]. Materials and Design, 2014, 55: 404-409.
[19]王宏宇, 吴志奎, 袁晓明, 等. 激光辐照对渗硼后65Mn钢组织和性能的影响[J]. 材料热处理学报, 2014, 35(5): 176-180.
Wang Hongyu, Wu Zhikui, Yuan Xiaoming, et al. Effects of laser irradiation on microstructure and properties of boronized 65Mn steel[J]. Transactions of Materials and Heat Treatment, 2014, 35(5): 176-180.
[20]卢庆亮, 王静, 戚小霞, 等. 面向盾构机密封跑道修复的激光熔覆Fe基涂层制备工艺[J]. 金属热处理, 2022, 47(1): 202-211.
Lu Qingliang, Wang Jing, Qi Xiaoxia, et al. Preparation technology of laser clad Fe-based coating for shield sealing runway repair[J]. Heat Treatment of Metals, 2022, 47(1): 202-211.
[21]林基辉, 温亚辉, 范文博, 等. 钛合金表面激光改性技术研究进展[J]. 金属热处理, 2022, 47(3): 215-221.
Lin Jihu, Wen Yahui, Fan Wenbo, et al. Research progress of laser modification technology for titanium alloy surface[J]. Heat Treatment of Metals, 2022, 47(3): 215-221.
[22]皇甫瑞云, 贺占蜀. 42CrMo钢板移动感应加热温度场数值模拟[J]. 机械设计与制造, 2023(2): 101-105, 111.
Huangfu Ruiyun, He Zhanshu. Numerical simulation of moving induction heating temperature field of 42CrMo plate[J]. Machinery Design and Manufacture, 2023(2): 101-105, 111.
[23]Bailey N S, Katina S C, Shin Y C. Laser direct deposition of AISI H13 tool steel powder with numerical modeling of solid phase transformation, hardness, and residual stresses[J]. Journal of Materials Processing Technology, 2017, 247: 223-233.
[24]Anusha E, Kumar A, Shariff S M. Finite element analysis and experimental validation of high-speed laser surface hardening process[J]. The International Journal of Advanced Manufacturing Technology, 2021, 115: 2403-2421.
[25]Zhuang S, Kainuma S, Yang M Y, et al. Investigation on the peak temperature and surface defects on the carbon steel treated by rotating CW laser[J]. Optics and Laser Technology, 2021, 135: 106727.
[26]Li Z X, Chen J S, Wang X N, et al. Microstructure distribution and bending fracture mechanism of 65Mn steel in the laser surface treatment[J]. Materials Science and Engineering A, 2022, 850: 143568.
[27]Saunders N, Guo Z, Li X, et. al. Using JMatPro to model materials properties and behavior[J]. The Journal of the Minerals, 2003, 55: 60-65.
[28]李成, 王玉玲, 姜芙林, 等. 激光功率对超声辅助激光熔覆Al₂O₃-ZrO₂陶瓷力学性能的影响[J]. 金属热处理, 2020, 45(2): 218-224.
Li Cheng, Wang Yuling, Jiang Fulin, et al. Effect of laser power on Tang Jiaqi, Xue Yuna, Wang Cankun, et al. Corrosion properties of micro-arc oxidation coating on AZ80 extruded magnesium alloy[J]. Heat Treatment of Metals, 2024, 49(1): 256-261.
mechanical properties of ultrasonic assisted laser clad Al₂O₃-ZrO₂ ceramic[J]. Heat Treatment of Metals, 2020, 45(2): 218-224.
[29]赵子硕, 武美萍, 缪小进, 等. 激光功率对FeCoNiCrMo高熵合金/氧化石墨烯复合涂层组织及耐腐蚀性能的影响[J]. 金属热处理, 2022, 47(4): 251-257.
Zhao Zishuo, Wu Meiping, Miao Xiaojin, et al. Effect of laser power on microstructure and corrosion resistance of FeCoNiCrMo high-entropy alloy/graphene oxide composite coating[J]. Heat Treatment of Metals, 2022, 47(4): 251-257.
[30]Bendoumi A, Makuch N, Chegroune R, et al. The effect of temperature distribution and cooling rate on microstructure and microhardness of laser re-melted and laser-borided carbon steels with various carbon concentrations[J]. Surface and Coatings Technology, 2020, 387: 125541.