Effect of quenching oil temperature on microstructure and properties of 40CrMnMo steel drill pipe

doi:10.13251/j.issn.0254-6051.2022.06.018

Abstract

Abstract: Effect of quenching oil temperature on microstructure and cross-section hardness of the quenched 40CrMnMo steel drill pipe, the mechanical properties and the impact absorbed energy of the tempered state was studied by means of hardness test, microstructure observation, tensile property and impact property test. The results show that the quenching oil temperature has a significant effect on microstructure and hardness of the drill pipe, and further affects the mechanical properties, yield ratio and impact absorbed energy after tempering. With the increase of quenching oil temperature, the cooling rate increases firstly and then decreases, the optimum medium temperature is 30-50 ℃, at which the specimen has good hardenability, uniform microstructure and fine grains. After tempering, the specimen has good mechanical properties, high yield ratio, high impact property and good toughness, and good comprehensive property.

Key words: quenching oil temperature, 40CrMnMo steel drill pipe, microstructure, properties

CLC Number:

TG172

Zhong Bin, Chen Yiqing, Li Lin, Gao Peng, San Hongyu, Ai Fangfang, Tian Xiumei. Effect of quenching oil temperature on microstructure and properties of 40CrMnMo steel drill pipe[J]. Heat Treatment of Metals, 2022, 47(6): 98-102.

References

[1]郭海滨, 左秀荣, 张新理, 等. 奥氏体化温度对奥氏体晶粒度及第二相固溶的影响[J]. 钢铁研究学报, 2016, 28(2): 63-68.
Guo Haibin, Zuo Xiurong, Zhang Xinli, et al. Effect of austenitizing temperature on size of austenite grain and solid solution of second phase particles[J]. Journal of Iron and Steel Research, 2016, 28(2): 63-68.
[2]刘正东, 杨钢, 程世长, 等. 2.25Cr-1Mo钢回火过程中碳化物析出顺序的研究[J]. 金属热处理, 2005, 30(4): 32-34.
Liu Zhengdong, Yang Gang, Cheng Shichang, et al. Investigation of carbide precipitation order of 2.25Cr-1Mo steel during tempering[J]. Heat Treatment of Metals, 2005, 30(4): 32-34.
[3]谷曼. 热处理工艺中淬火裂纹的预防[J]. 合肥联合大学学报: 自然科学版, 2001, 11(1): 100-105.
Gu Man. The prevention of quenching crackles in heat-treating technology[J]. Journal of Hefei Union University: Natural Science, 2001, 11(1): 100-105.
[4]姜如松, 廖永红. 40CrMnMo钢单体泵泵体淬火开裂分析及对策[J]. 金属热处理, 2016, 41(12): 187-191.
Jiang Rusong, Liao Yonghong. Quenching crack analysis and counter measures of 40CrMnMo steel single pump body[J]. Heat Treatment of Metals, 2016, 41(12): 187-191.
[5]钟彬, 陈义庆, 孟凡磊, 等. 40CrMnMo钢钻杆料的裂纹缺陷分析[J]. 金属热处理, 2021, 46(2): 228-231.
Zhong Bin, Chen Yiqing, Meng Fanlei, et al. Crack defect analysis of 40CrMnMo steel drill pipe material[J]. Heat Treatment of Metals, 2021, 46(2): 228-231.
[6]曹建军, 陈明安. 26CrMoNbTiB(S135)钻杆管热处理工艺的研究[J]. 金属材料与冶金工程, 2007, 35(2): 28-32.
Cao Jianjun, Chen Ming'an. Research on heat treatment technology of 26CrMoNbTiB (S135) drill pipe[J]. Metal Materials and Metallurgy Engineering, 2007, 35(2): 28-32.
[7]Shaeri M H, Saghafian H, Shabestafi S G. Effects of austempering and martempering processes on amount of retained austenite in Cr-Mo steels (FMU-226) used in mill liner[J]. Journal of Iron and Steel Research, 2010, 17(2): 53-58.
[8]欧阳志英, 舒志强, 袁鹏斌. 屈强比对高强度高塑性钻杆性能的影响[J]. 理化检验(物理分册), 2013, 49(1): 17-21, 26.
Ouyang Zhiying, Shu Zhiqing, Yuan Pengbin. Effect of yield ratio on the performance of high strength and high ductility drill pipe[J]. Physical Testing and Chemical Analysis (Part A: Physical Testing), 2013, 49(1): 17-21, 26.
[9]潘健生, 周敬恩, 王广生, 等. 热处理手册[M]. 北京: 机械工业出版社, 2009: 100-109.
Pan Jiansheng, Zhou Jing'en, Wang Guangsheng, et al. Heat Treatment Manual[M]. Beijing: China Machine Press, 2009: 100-109.
[10]张家文, 付天亮, 吴昊, 等. 40CrNiMo7钢锻轴淬火开裂的原因分析[J]. 金属热处理, 2021, 46(2): 213-218.
Zhang Jiawen, Fu Tianliang, Wu Hao, et al. Cause analysis on quenching cracking of 40CrNiMo7 steel forged shaft[J]. Heat Treatment of Metals, 2021, 46(2): 213-218.
[11]舒志强, 袁鹏斌, 欧阳志英, 等. 回火温度对26CrMo钻杆钢显微组织和力学性能的影响[J]. 金属学报, 2017, 53(6): 669-676.
Shu Zhiqiang, Yuan Pengbin, Ouyang Zhiying, et al. Effects of tempering temperature on microstructure and mechanical properties of drill pipe steel 26CrMo[J]. Acta Metallurgica Sinica, 2017, 53(6): 669-676.

[1]	Gu Guochao, Li Ruifen, Xin Zhenmin, Xiang Lixin, Xu Wenhua, Lü Yupeng. Effect of solution temperature on mechanical properties and corrosion resistance of super duplex stainless steel 2507 [J]. Heat Treatment of Metals, 2022, 47(6): 1-6.
[2]	Wu Yang, Huang Hui, Shi Wei, Wen Shengping, Wu Xiaolan, Rong Li, Wei Wu. Effects of solution and aging treatments on mechanical properties and microstructure of Al-Cu-Mn-Er cast alloy [J]. Heat Treatment of Metals, 2022, 47(6): 7-12.
[3]	Jia Xinyun, Chen Shengping, Zong Cui, Tan Yongning, Huang Zhaohui. Thermal process matching of single crystal double casting guide vane of DD5 alloy [J]. Heat Treatment of Metals, 2022, 47(6): 13-18.
[4]	Tian Yaqiang, Zhao Zhihao, Yang Zixuan, Xu Haiwei, Han Yun, Zheng Xiaoping, Li Hongbin, Chen Liansheng. Effect of warm rolling temperature on microstructure and mechanical properties of medium carbon steel [J]. Heat Treatment of Metals, 2022, 47(6): 19-24.
[5]	Jiang Mingzhong, Zhao Yong, Pan Qianfu, Wu Yu, Wang Xinmin, Jiang Wenlong. Optimization of heat treatment process for F/M steel cladding pipes [J]. Heat Treatment of Metals, 2022, 47(6): 25-32.
[6]	Zhai Chuantian, Sun Youping, He Jiangmei, Meng Xiangchao, Wan Siyu. Effect of rolling deformation on microstructure and properties of Mg-Zn-Y alloy [J]. Heat Treatment of Metals, 2022, 47(6): 39-45.
[7]	Li Xiaochen, Wang Shiying, Hua Tianyu, Chen Zhidong. Effect of deep cryogenic treatment on microstructure and mechanical properties of TC4 titanium alloy during annealing [J]. Heat Treatment of Metals, 2022, 47(6): 46-53.
[8]	Feng Shuming, Wan Decheng, Hu Jinpeng, Li Jie. Effect of partitioning temperature on microstructure and mechanical properties of 0.2C-2.96Mn-1.73Si steel [J]. Heat Treatment of Metals, 2022, 47(6): 54-58.
[9]	Chen Jiajun, Zhu Zhiyuan, Li Jianqiang, Wang Shouqian. Effect of solution treatment on microstructure and properties of Cr23Ni7Mo2Cu0.6 duplex stainless steel [J]. Heat Treatment of Metals, 2022, 47(6): 59-63.
[10]	Yu Juan, Feng Zhaohui, Zhao Weiyi, Yao Yong, You Wen. Effect of pre-stretching amount on microstructure and properties of 2050 Al-Li alloy [J]. Heat Treatment of Metals, 2022, 47(6): 64-68.
[11]	Bai Xinghong, Zhao Xichun, Zhao Deli, Wang Dapeng, Nan Yujing. Effect of cooling rate on microstructure and mechanical properties of Cr5 steel for backup roll [J]. Heat Treatment of Metals, 2022, 47(6): 69-71.
[12]	Xu Xinquan, Fang Zhou, Liu Xinkuan, Wang Ziyan. Effect of heat treatment on low temperature brazing of copper and aluminum [J]. Heat Treatment of Metals, 2022, 47(6): 78-84.
[13]	Yan Xiang, Li Defa, Guan Jisheng, Yang Zhizheng. Effect of deformation on microstructure and properties of low-carbon microalloyed steel [J]. Heat Treatment of Metals, 2022, 47(6): 85-88.
[14]	Han Haoyuan, Yang Tao, Qiu Juan, Yang Gang, Yu Wanhua, Zhai Yuewen, Zhou Leyu. Effect of solution treatment on microstructure and hardness of TC4 alloy [J]. Heat Treatment of Metals, 2022, 47(6): 93-97.
[15]	Zhao Tiansheng, Fang Yu, Sun Yubin. Effect of forming speed on mechanical properties and fracture morphology of 7050 aluminum alloy forgings [J]. Heat Treatment of Metals, 2022, 47(6): 103-106.