Volume 36 Issue 11
Jan.  2022
Turn off MathJax
Article Contents
Dong Fuyuan, Meng Zhaojing, Zhang Mingxu. Orthoronal Experimental Study on the Effect of Heat Treatment on the Properties of G20Cr2Ni4A Steel[J]. STEEL CONSTRUCTION(Chinese & English), 2021, 36(11): 22-27. doi: 10.13206/j.gjgS20032601
Citation: Dong Fuyuan, Meng Zhaojing, Zhang Mingxu. Orthoronal Experimental Study on the Effect of Heat Treatment on the Properties of G20Cr2Ni4A Steel[J]. STEEL CONSTRUCTION(Chinese & English), 2021, 36(11): 22-27. doi: 10.13206/j.gjgS20032601

Orthoronal Experimental Study on the Effect of Heat Treatment on the Properties of G20Cr2Ni4A Steel

doi: 10.13206/j.gjgS20032601
  • Received Date: 2020-03-26
    Available Online: 2022-01-26
  • G20Cr2Ni4A steel belongs to CrNi system high quality alloy carburized carbon steel and Cr and Ni content is high. The hardenability of G20Cr2Ni4A is good and its carburized surface has quite high hardness, wear resistance and contact fatigue strength, while its core also retains good toughness, which has excellent comprehensive mechanical properties.Because of the temperature range between critical point Ac1 and Ac3 of G20Cr2Ni4A steel is narrow and Ac3 is 785 ℃, a lower quenching temperature can be selected to ensure surface and core hardness and reduce gear distortion.G20Cr2Ni4A can improve the impact toughness of the material and the comprehensive mechanical properties of the core of the component by heating quenching and tempering.The impact toughness of G20Cr2Ni4A steel after tempering at different temperatures was studied. It was found that the impact toughness was the highest when the tempering temperature was about 200 ℃.The 200 ℃ tempering temperature was selected. G20Cr2Ni4A steel was conducted heat treatment, through the orthogonal test of two factors and three levels, and the effects of quenching temperature and tempering time on the metallographic structure, residual austenite content, hardness and impact properties were observed.Orthogonal test adopted quenching temperature of 800, 850, 900 ℃ and tempering time of 1, 3, 5 h to heat G20Cr2Ni4A, and then measureed its hardness, impact energy and residual austenite content respectively. Through orthogonal test analysis and comparison with the original sample, the corresponding experimental conclusions was drawn: quenching heating temperature and tempering time had significant effects on mechanical properties of G20Cr2Ni4A steel.With the quenching heating temperature increased, the hardness, impact energy and residual austenite volume increased first and then decreaseed slowly; with the extension of tempering time, hardness, impact energy and residual austenite volume all decreased first and then increased.The hardness increased with the increase of residual austenite content, and the impact toughness had an approximate linear relationship with the residual austenite volume.After quenching at 850 ℃ and tempering at 200 ℃ for 1 h, the residual austenite content of G20Cr2Ni4A steel was 2.97%. The experimental steel had the best comprehensive mechanical properties with 45.1 hardness and 25.0 J impact energy.
  • loading
  • [1]
    孟祥顺, 高全德, 叶玉娟, 等. 20Cr2Ni4A钢的高强韧化工艺[J]. 金属热处理, 2016, 41(4): 175-177.
    [2]
    全国滚动轴承标准化技术委员会. 滚动轴承高碳铬轴承钢零件热处理技术条件: JB/T 1255-2014 [S]. 北京: 中国工业机械联合会, 2014: 2-21.
    [3]
    张玲, 陈卉珍, 陈小超, 等. 深冷处理对G20Cr2Ni4A渗碳轴承钢力学性能的影响[J]. 热处理技术与装备, 2016, 37(3): 41-45.
    [4]
    邱永红, 莫义明. 20Cr2Ni4A材料齿轮热处理工艺改进[J]. 金属加工(热加工), 2015 (7

    ): 24-25.
    [5]
    刘红祎, 肖洋, 李卯华, 等. 大负荷轧机用渗碳轴承钢G20Cr2Ni4A的生产试制[J]. 金属世界, 2016(5): 57-60.
    [6]
    施家山, 邱光明, 施文静. 20Cr2Ni4A钢齿轮的热处理[J]. 热处理, 2013, 28(2): 69-71.
    [7]
    张惠娟, 戴加维, 朱钰如, 等. 20Cr2Ni4A钢低温回火脆性探讨[J]. 理化检验(物理分册), 1996, 32

    (6): 11-18.
    [8]
    张潇文. 35CrMnSi的Q-P处理及残余奥氏体稳定性分析[D]. 济南: 山东大学, 2013.
    [9]
    任勇强, 谢振家, 尚成嘉. 低碳钢中残余奥氏体的调控及对力学性能的影响[J], 金属学报, 2012, 48(9): 1074-1080.
    [10]
    宋华华. 冷处理和深冷处理对G20Cr2Ni4A钢组织和性能的影响[J]. 金属热处理, 2016, 41(7): 142-144.
    [11]
    张玲, 卉珍, 陈小超, 等. 深冷处理对G20Cr2Ni4A渗碳轴承钢力学性能的影响[J]. 热处理技术与装备, 2016, 37(3): 41-46.
    [12]
    刘永飞, 高啸天, 武占学, 等. 高温回火对20Cr2Ni4A钢渗碳层中残留奥氏体的影响[J]. 金属热处理, 2013, 38(1): 77-79.
    [13]
    王青, 秦红新, 管秀兵. 特殊要求的12Cr1MoVR钢板热处理工艺研究[J]. 宽厚板, 2017, 23(4): 12-14.
    [14]
    黄斐. 金属材料与热处理工艺相关性分析[J]. 世界有色金属, 2017(16): 257-258.
    [15]
    石晓霞, 张行刚, 田伟. 热处理工艺对25CrMoRE钢组织及性能的影响[J]. 包钢科技, 2017, 43(3): 55-57.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (280) PDF downloads(6) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return