Effect of heat treatment on microstructure and properties of ZG45Cr5Ni2Mo wear-resistant steel

doi:10.13251/j.issn.0254-6051.2023.03.010

Abstract

Abstract: Based on the equilibrium phase composition and CCT curves calculated and analyzed by JMatpro 9.0 thermodynamic software, the ZG45Cr5Ni2Mo wear-resistant steel was oil quenched at 900 ℃, and tempered for 2 h at 180, 300, 400, 500 and 600 ℃, respectively, then air cooled. The microstructure and mechanical properties of the heat treated steel were studied by means of scanning electron microscope, Rockwell hardness tester and impact tester. The results show that with the increase of tempering temperature, the hardness decreases gradually, and the impact absorbed energy fluctuates greatly. The hardness of the tested steel tempered at 300 ℃ is 51.9 HRC, and the impact absorbed energy is 48 J, which has a combination of high hardness and good ductility.

Key words: ZG45Cr5Ni2Mo wear-resistant steel, JMatpro, heat treatment, impact absorbed energy, hardness

CLC Number:

TG156.5

Fan Shichong, Sun Jinzhao, Shen Zhihao, Lu Kefeng, Liu Yafan, Wang Hongqi, Yin Fengshi. Effect of heat treatment on microstructure and properties of ZG45Cr5Ni2Mo wear-resistant steel[J]. Heat Treatment of Metals, 2023, 48(3): 57-61.

References

[1]蔡祖光. 对辊机辊圈的磨损及其解决途径 [J]. 砖瓦, 2007(3): 17-19.
Cai Zuguang. The ways for reducing the wear of roller ring of roller mill [J]. Block-Brick-Tile, 2007(3): 17-19.
[2]丁昌安. 辊式破碎机的结构特点及应用 [J]. 砖瓦, 2006(10): 81-82.
Ding Chang'an. The structure characteristics of the roll crusher and its utilization [J]. Block-Brick-Tile, 2006(10): 81-82.
[3]娄开钧, 余瑾, 邓邝川, 等. 提高对辊机辊圈耐磨性能的研究[J]. 铸造, 1994(8): 7-11.
Lou Kaijun, Yu Jin, Deng Kuangchuan, et al. Study on increasing wear resistance of roll ring of double-roll machine[J].Foundry, 1994(8): 7-11.
[4]马岸奇. 不同材质的耐磨辊圈的研究[J]. 砖瓦, 2018(2): 74-76.
[5]朱康峰, 周一帆, 尤学文, 等. 三种热处理工艺对低合金耐磨钢组织和磨损性能的影响[J]. 材料热处理学报, 2021, 42(10): 108-115.
Zhu Kangfeng, Zhou Yifan, You Xuewen, et al. Effect of three kinds of heat treatment processes on microstructure and wear resistance of low alloy wear resistant steel[J]. Transactions of Materials and Heat Treatment, 2021, 42(10): 108-115.
[6]朱庆华, 闫强军, 葛昕, 等. 淬火工艺对高等级耐磨钢NM600组织及性能的影响[J]. 宽厚板, 2022, 28(1): 6-10.
Zhu Qinghua, Yan Qiangjun, Ge Xin, et al. Effects of quenching process on microstructure and mechanical properties of NM600 grade wear resistant steel[J]. Wide and Heavy Plate, 2022, 28(1): 6-10.
[7]付锡彬, 陈子豪, 张可, 等. 淬火温度对高Ti低合金耐磨钢组织及力学性能的影响[J]. 金属热处理, 2022, 47(4): 122-128.
Fu Xibin, Chen Zihao, Zhang Ke, et al. Effect of quenching temperature on microstructure and mechanical properties of high Ti low alloy wear-resistant steel[J]. Heat Treatment of Metals, 2022, 47(4): 122-128.
[8]马文高. 淬火温度对铬钼马氏体耐磨钢组织和力学性能的影响[J]. 上海金属, 2021, 43(4): 38-43.
Ma Wengao. Effect of austenitizing temperature on microstructure and mechanical properties of chrome-molybdenum martensite wear-resistant steel[J]. Shanghai Metals, 2021, 43(4): 38-43.
[9]张衡, 张迪, 刘馨宇, 等. 锻造及热处理工艺对耐磨钢组织及耐磨性能的影响[J]. 金属热处理, 2022, 47(7): 138-143.
Zhang Heng, Zhang Di, Liu Xinyu, et al. Effect of forging and heat treatment on microstructure and wear resistance of wear-resistant steel[J]. Heat Treatment of Metals, 2022, 47(7): 138-143.
[10]李冠楠, 雷明钢, 陈昊天, 等. 非调质NM400复相耐磨钢的相变行为[J]. 金属热处理, 2022, 47(12): 228-233.
Li Guannan, Lei Minggang, Chen Haotian, et al. Phase transformation behavior of non-quenched and tempered NM400 multiphase wear-resistant steel[J]. Heat Treatment of Metals, 2022, 47(12): 228-233.
[11]樊自田, 蒋文明, 郭鹏, 等. 消失模铸造[J]. 铸造设备与工艺, 2018(6): 63-68.
[12]李小兵, 董鑫, 邢炜伟, 等. 合金元素对Cr-Mo钢第二类回火脆性影响研究综述[J]. 钢铁, 2021, 56(3): 1-12.
Li Xiaobing, Dong Xin, Xing Weiwei, et al. Effect of alloying elements addition on the secondary tempering brittleness of Cr-Mo steels review[J]. Iron and Steel, 2021, 56(3): 1-12.
[13]赵贤平, 邓深, 温小园, 等. 回火温度对低碳贝氏体钢Q590组织和冲击性能的影响[J]. 宽厚板, 2021, 27(1): 45-48.
Zhao Xianping, Deng Shen, Wen Xiaoyuan, et al. Effects of tempering temperature on microstructure and impact properties of Q590 low carbon high strength bainitic steel[J].Wide and Heavy Plate, 2021, 27(1): 45-48.
[14]郑东升, 刘丹, 罗登, 等. 回火温度对工程机械用超高强钢组织及回火脆性的影响[J]. 金属热处理, 2020, 45(12): 82-86.
Zheng Dongsheng, Liu Dan, Luo Deng, et al. Effect of tempering temperature on microstructure and tempering embrittlement of ultra-high strength steel for construction machinery[J]. Heat Treatment of Metals, 2020, 45(12): 82-86.
[15]李婷婷. 回火与温变形对马氏体回火脆性的影响[D]. 秦皇岛: 燕山大学, 2020.
Li Tingting. Effect of tempering and warm deformation on tempering brittleness of martensite[D]. Qinhuangdao: Yanshan University, 2020.
[16]倪红军, 黄明宇, 张福豹, 等. 工程材料[M]. 南京: 东南大学出版社, 2016.
Ni Hongjun, Huang Mingyu, Zhang Fubao, et al. Engineering Materials[M]. Nanjing: Southeast University Press, 2016.