Laser quenching process optimization and microstructure and properties of H13 steel

doi:10.13251/j.issn.0254-6051.2023.07.044

Abstract

Abstract: Surface of H13 steel was strengthened by laser quenching, and the quenching process was optimized by range analysis of orthogonal test. The microhardness and friction and wear properties of the specimen under the optimum process parameters were studied, and the phase composition and microstructure of the laser quenching surface were analyzed. The results show that the optimum laser quenching process parameters are laser power of 600 W, scanning speed of 6 mm/s and lapping rate of 20%. Under this optimum process, the average hardness of hardened layer of the H13 steel is 774 HV0.1, which is about 3 times than that of the matrix, the depth of the hardened layer is 0.87 mm, and the friction coefficient and wear amount are about 0.367 and 0.0015 g, which are 50% and 60.5% lower than those of the matrix, respectively. The hardened layer is mainly composed of lath and acicular mixed martensite, retained austenite and a small amount of cementite.

Key words: H13 die steel, laser quenching, microhardness, microstructure, friction and wear

CLC Number:

TG178

Ma Xin, Shi Qiang, Chen Yanzhong, Li Qiang, Zhang Yueting, Zhao Long. Laser quenching process optimization and microstructure and properties of H13 steel[J]. Heat Treatment of Metals, 2023, 48(7): 266-270.

References

[1]淡佳鹏, 姚泽坤, 胡吉云, 等. 热处理工艺对H13钢挤杆模寿命的影响[J]. 金属热处理, 2016, 41(8): 161-164.
Dan Jiapeng, Yao Zekun, Hu Jiyun, et al. Effect of heat treatment on service life of H13 steel bar extruding die[J]. Heat Treatment of Metals, 2016, 41(8):161-164.
[2]计天予, 吴晓春. H13改进型热作模具钢的组织与性能[J]. 钢铁研究学报, 2013, 25(5): 31-38.
Ji Tianyu, Wu Xiaochun. Microstructure and mechanical properties of modified H13 hot working die steel[J]. Journal of Iron and Steel Research, 2013, 25(5):31-38.
[3]吴剑钊, 于爱兵, 牛威杨, 等. W6Mo5Cr4V2高速钢WC/Co激光熔覆表面的摩擦磨损性能[J]. 材料保护, 2017, 50(3): 19-22.
Wu Jianzhao, Yu Aibing, Niu Weiyang, et al. Tribological properties of high speed steel surface with WC/Co laser cladding layer[J]. Materials Protection, 2017, 50(3): 19-22.
[4]Kong D J, Zhang L. Effects of laser quenching on impact toughness and fracture morphologies of 40CrNiMo high strength steel[J]. Journal of Materials Engineering and Performance, 2014, 23(10): 3695-3702.
[5]段松, 秦茶, 李碧波. 激光淬火处理后半高速钢的组织及性能[J]. 金属热处理, 2015, 40(9): 76-78.
Duan Song, Qin Cha, Li Bibo. Microstructure and properties of semi-HSS treated by laser quenching[J]. Heat Treatment of Metals, 2015, 40(9): 76-78.
[6]员霄, 王井, 朱青海, 等. H13钢的铁基和钴基熔覆层组织与耐磨性[J]. 焊接学报, 2018, 39(12): 105-109, 133.
Yuan Xiao, Wang Jing, Zhu Qinghai, et al. Microstructure and abrasion resistance of Fe-based and Co-based coatings of AISI H13[J]. Transactions of the China Welding Institution, 2018, 39(12): 105-109, 133.
[7]Peng J H, Tang X L, He J T, et al. Effect of heat treatment on microstructure and tensile properties of A356 alloys[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(9): 1950-1956.
[8]杨柳青. 汽车覆盖件模具材料激光表面相变硬化工艺与性能研究[D]. 南昌: 华东交通大学, 2002.
[9]贾金凤. 激光表面淬火HT250导轨耐磨性试验研究[D]. 兰州: 兰州理工大学, 2018.
Jia Jinfeng. Experiment research on wear resistance of HT250 guideway for laser surface hardening[D]. Lanzhou: Lanzhou University of Technology,2018.
[10]杨泽华, 马战勋, 刘丽敏. 激光淬火技术在大模数齿圈齿面表面强化上的应用[J]. 金属加工(热加工), 2018(6): 113-115.
Yang Zehua. Application of laser quenching in the large tooth surface strengthening[J]. MW Metal Forming (Hot Forming), 2018(6): 113-115.
[11]杨振, 樊湘芳, 邱长军, 等. 激光功率对40CrNiMoA钢表面淬火组织和摩擦磨损性能的影响[J]. 金属热处理, 2020, 45(3): 128-133.
Yang Zhen, Fan Xiangfang, Qiu Changjun, et al. Effect of laser power on quenched microstructure and friction and wear properties of 40CrNiMoA steel[J]. Heat Treatment of Metals, 2020, 45(3): 128-133.
[12]唐亮, 王文健, 张亚龙, 等. 激光淬火工艺对QT700-2球墨铸铁表面硬度与硬化层深度的影响[J]. 机械工程材料, 2020, 44(5): 82-86.
Tang Liang, Wang Wenjian, Zhang Yalong, et al. Effect of laser quenching process on surface hardness and hardened layer depth of QT700-2 ductile cast iron[J]. Materials for Mechanical Engineering, 2020, 44(5): 82-86.
[13]梁晨帆, 王瑜, 李颖杰, 等. 激光淬火参数对钻具4145H钢磨损性能的影响[J]. 材料热处理学报, 2021, 42(6): 147-156.
Liang Chenfan, Wang Yu, Li Yingjie, et al. Effect of laser quenching parameters on wear performance of 4145H steel for drilling tools[J]. Transactions of Materials and Heat Treatment, 2021, 42(6): 147-156.
[14]李颖杰, 王瑜, 周琴, 等. 4145H钻具钢的激光淬火工艺[J]. 金属热处理, 2019, 44(8): 169-175.
Li Yingjie, Wang Yu, Zhou Qin, et al. Laser quenching process of 4145H drilling tool steel[J]. Heat Treatment of Metals, 2019, 44(8): 169-175.
[15]焦咏翔, 邓德伟, 孙奇, 等. 工艺参数对42CrMo钢激光淬火效果的影响[J]. 金属热处理, 2021, 46(11): 90-96.
Jiao Yongxiang, Deng Dewei, Sun Qi, et al. Influence of process parameter on laser quenching effect of 42CrMo steel[J]. Heat Treatment of Metals, 2021, 46(11): 90-96.
[16]杜成明, 李勇, 孙影, 等. 42CrMo钢表面激光淬火硬化试验研究[J]. 材料保护, 2022, 55(7): 160-164.
Du Chengming, Li Yong, Sun Ying, et al. Experimental study on laser quenching hardening of 42CrMo steel surface[J]. Materials Protection, 2022, 55(7): 160-164.
[17]郭士锐, 张仕豪, 车江宁, 等. 420B不锈钢牙骨凿表面激光淬火的数值模拟与组织性能[J]. 金属热处理, 2021, 46(4): 147-151.
Guo Shirui, Zhang Shihao, Che Jiangning, et al. Numerical simulation of surface laser quenching and microstructure and properties of 420B stainless steel dental chisel[J]. Heat Treatment of Metals, 2021, 46(4): 147-151.