Influence of process parameter on laser quenching effect of 42CrMo steel

doi:10.13251/j.issn.0254-6051.2021.11.014

Abstract

Abstract: Influence of laser quenching power and scanning speed on surface hardness and hardened depth of the 42CrMo steel was studied by applying different process parameters, and the variation trends of hardening performance under constant laser energy density and different laser quenching parameters were analyzed. The results show that the hardened depth and hardness of the hardened layers can be improved by increasing laser power and decreasing scanning speed. There is a stronge correlation between the energy density parameters calculated by combining the laser power and scanning speed and the quenching effect. Under the same energy density, the high power and high speed parameters can increase the hardness, hardened depth and processing efficiency.

Key words: laser quenching, 42CrMo steel, hardness, hardened layer, energy density

CLC Number:

TG156.33

Jiao Yongxiang, Deng Dewei, Sun Qi, Li Tianshu, Yang Shuhua, Zhang Yong, Ma Yushan. Influence of process parameter on laser quenching effect of 42CrMo steel[J]. Heat Treatment of Metals, 2021, 46(11): 90-96.

References

[1]徐宏伟, 潘正祥, 闻德刚. 激光淬火技术研究现状及其发展[J]. 中国印刷与包装研究, 2014, 6(2): 1-8.
Xu Hongwei, Pan Zhengxiang, Wen Degang. Research on status and development of laser quenching technology[J]. China Printing and Packaging Study, 2014, 6(2): 1-8.
[2]潘雪新, 常红, 李忠文, 等. 激光淬火对高速动车组EA4T车轴钢组织和性能的影响[J]. 金属热处理, 2020, 45(5): 161-165.
Pan Xuexin, Chang Hong, Li Zhongwen, et al. Influence of laser quenching on structure and property of EA4T axle steel for high-speed EMU[J]. Heat Treatment of Metals, 2020, 45(5): 161-165.
[3]高国富, 郭子龙, 李康, 等. 超声振动辅助Ni60WC25粉末激光熔覆技术[J]. 金属热处理, 2019, 44(1): 172-175.
Gao Guofu, Guo Zilong, Li Kang, et al. Ultrasonic vibration assisted Ni60WC25 powder laser cladding technology[J]. Heat Treatment of Metals, 2019, 44(1): 172-175.
[4]曾强, 吴颖, 肖辉进, 等. 油气工程用Inconel 718合金激光焊接头的氢脆行为[J]. 金属热处理, 2020, 45(8): 50-55.
Zeng Qiang, Wu Ying, Xiao Huijin, et al. Hydrogen embrittlement behavior of oilfield-grade Inconel 718 alloy laser welded join[J]. Heat Treatment of Metals, 2020, 45(8): 50-55.
[5]Jiang J R, Xue L J, Wang S D. Discrete laser spot transformation hardening of AISI O1 tool steel using pulsed Nd: YAG laser[J]. Surface and Coatings Technology, 2011, 205(21): 5156-5164.
[6]Kusinski J, Kac S, Kopia A, et al. Laser modification of the materials surface layer-a review paper[J]. Bulletin of the Polish Academy of Sciences: Technical Sciences, 2012, 60(4): 711-728.
[7]丁阳喜, 周立志. 激光表面处理技术的现状及发展[J]. 热加工工艺, 2007(6): 69-72.
Ding Yangxi, Zhou Lizhi. Status and development of laser surface treating[J]. Hot Working Technology, 2007(6): 69-72.
[8]杨昌盛, 徐善辉, 周军, 等. 大功率光纤激光材料与器件关键技术研究进展[J]. 中国科学: 技术科学, 2017, 47(10): 1038-1048.
Yang Changsheng, Xu Shanhui, Zhou Jun, et al. Research advance on the key technology of high-power fber laser materials and components[J]. Scientia Sinica (Technologica), 2017, 47(10): 1038-1048.
[9]王涛亮, 路妍, 任凤章, 等. 低合金超高强度钢研究进展[J]. 金属热处理, 2015, 40(2): 13-20.
Wang Taoliang, Lu Yan, Ren Fengzhang, et al. Research progress of ultra-high strength low alloy steels[J]. Heat Treatment of Metals, 2015, 40(2): 13-20.
[10]应俊龙, 巢昺轩, 蒋克全, 等. 超高强度钢的发展及展望[J]. 新技术新工艺, 2018(12): 1-4.
Ying Junlong, Chao Bingxuan, Jiang Kequan, et al. Development and prospect of ultra high strength steel[J]. New Technology and New Process, 2018(12): 1-4.
[11]Carrera-Espinoza R, Valerio A R, Villasana J d, et al. Surface laser quenching as an alternative method for conventional quenching and tempering treatment of 1538 MV steel[J]. Advances in Materials Science and Engineering, 2020, 2020: 7950684.
[12]Liu Y, Tian Y P, Zhang H, et al. Microstructure and properties of Cr12MoV die steel by laser quenching with different power[J]. IOP Conference Series: Materials Science and Engineering, 2019, 631: 022032.
[13]王会珍, 翟月雯, 周乐育. 42CrMo钢折弯模具激光表面强化[J]. 金属热处理, 2020, 45(8): 222-227.
Wang Huizhen, Zhai Yuewen, Zhou Leyu. Laser surface strengthening of 42CrMo steel for bending die[J]. Heat Treatment of Metals, 2020, 45(8): 222-227.
[14]Maharjan N, Murugan V K, Zhou W, et al. Corrosion behavior of laser hardened 50CrMo4 (AISI 4150) steel: A depth-wise analysis[J]. Applied Surface Science, 2019, 494: 941-951.
[15]Emamian A, Corbin S F, Khajepour A. The influence of combined laser parameters on in-situ formed TiC morphology during laser cladding[J]. Surface and Coatings Technology, 2011, 206(1): 124-131.
[16]Suzuki A, Nishida R, Takata N, et al. Design of laser parameters for selectively laser melted maraging steel based on deposited energy density[J]. Additive Manufacturing, 2019, 28: 160-168.
[17]Shin W S, Yoo H J, Kim J H, et al. Effect of laser heat-treatment and laser nitriding on the microstructural evolutions and wear behaviors of AISI P21 mold steel[J]. Metals, 2020, 10(11): 1487-1501.
[18]李铸国, 黄坚, 张轲, 等. 高功率半导体激光表面硬化42CrMo4钢的实验研究[C]// 第八届全国表面工程学术会议, 2010.
Li Zhuguo, Huang Jian, Zhang Ke, et al. Investigation on high power diode laser surface hardening of 42CrMo4 steel[C]//The 8th National Conference on Surface Engineering, 2010.
[19]马奎, 杨蕴林, 王长生, 等. 激光淬火工艺参数对40Cr钢淬硬层深的影响[J]. 激光技术, 2002, 26(4): 262-263, 289.
Ma Kui, Yang Yunlin, Wang Changsheng, et al. Effect of laser hardening technical parameters on hardened depth of 40Cr steel[J]. Laser Technology, 2002, 26(4): 262-263, 289.
[20]Damon J, Koch R, Kaiser D, et al. Process development and impact of intrinsic heat treatment on the mechanical performance of selective laser melted AISI 4140[J]. Additive Manufacturing, 2019, 28: 275-284.
[21]Miokovič T, Schulze V, Vöhringer O, et al. Prediction of phase transformations during laser surface hardening of AISI 4140 including the effects of inhomogeneous austenite formation[J]. Materials Science and Engineering A, 2006, 435-436: 547-555.