Effect of heat treatment on microstructure and mechanical properties of high-pressure gas cylinder head

doi:10.13251/j.issn.0254-6051.2024.02.035

Abstract

Abstract: High pressure gas cylinder made of 34CrMo4 seamless steel tube prepared by flip plate spinning forming was treated by quenching+subcritical quenching+tempering, and then microstructure and mechanical properties of the cylinder head before and after heat treatment were studied by metallographic observation and tensile test. The results show that the grain size of the material is obviously refined by the heat treatment, and the coarse ferrite+sorbite structure in the cylinder head is transformed into fine tempered sorbite structure. After heat treatment, the tensile strength and yield strength of the cylinder head are improved, the yield ratio is reduced, and the plasticity of the cylinder is improved. It is proved that the heat treatment process of quenching+subcritical quenching+tempering is beneficial to optimize the microstructure and improve the mechanical properties of high-pressure gas cylinder made of 34CrMo4 steel.

Key words: 34CrMo4 steel, high-pressure gas cylinder, heat treatment, microstructure, mechanical properties

CLC Number:

TG156

Wei Wei, Luo Xiong, Fan Junming, Chen Liubin, Wu Mingxia. Effect of heat treatment on microstructure and mechanical properties of high-pressure gas cylinder head[J]. Heat Treatment of Metals, 2024, 49(2): 220-223.

References

[1]亓文永. 高压容器安全操作与管理问题的思考[J]. 中国设备工程, 2021, 12: 44-45.
[2]朱林, 程向龙, 邹喜洋. 26CrMo4钢的热处理工艺[J]. 金属热处理, 2022, 47(1): 271-275.
Zhu Lin, Cheng Xianglong, Zou Xiyang. Heat treatment process for 26CrMo4 steel[J]. Heat Treatment of Metals, 2022, 47(1): 271-275.
[3]杨雄, 李鹏. 中温压力容器用钢15CrMoR的热处理工艺[J]. 金属热处理, 2023, 48(7): 181-186.
Yang Xiong, Li Peng. Heat treatment process of 15CrMoR steel for medium temperature pressure vessel[J]. Heat Treatment of Metals, 2023, 48(7): 181-186.
[4]张德勇, 李伟, 杨志强, 等. 控轧控冷工艺对L450M管线钢屈强比的影响[J]. 轧钢, 2023, 40(1): 110-113.
Zhang Deyong, Li Wei, Yang Zhiqiang, et al. Influence of controlled rolling and controlled cooling process on yield ratio of L450M pipeline steel[J]. Steel Rolling, 2023, 40(1): 110-113.
[5]Tang Z H, Stumpf W. The effect of microstructure and processing variables on the yield to ultimate tensile strength ratio in a Nb-Ti and a Nb-Ti-Mo line pipe steel[J]. Materials Science and Engineering A, 2008, 490: 391-402.
[6]杨浩, 杨汉, 曲锦波. 热处理工艺对690 MPa级低屈强比高强钢组织性能的影响[J]. 材料热处理学报, 2013, 34(5): 137-142.
Yang Hao, Yang Han, Qu Jinbo. Effect of heat treatment on microstructure and mechanical properties of a 690 MPa grade high strength steel with low yield ratio[J]. Transactions of Materials and Heat Treatment, 2013, 34(5): 137-142.
[7]尹谢平, 陆明和, 蒋锡军. 热处理对高压气瓶用34CrMo4H钢力学性能的影响[J]. 金属热处理, 2015, 40(10): 176-180.
Yin Xieping, Lu Minghe, Jiang Xijun. Effect of heat treatment on mechanical properties of 34CrMo4H steel for high-pressure cylinders[J]. Heat Treatment of Metals, 2015, 40(10): 176-180.
[8]Chen Q Y, Zhang W N, Xie Z L, et al. Influence of intercritical temperature on the microstructure and mechanical properties of 6.5 pct Ni steel processed by ultra-fast cooling, intercritical quenching and tempering[J]. Metallurgical and Materials Transactions A, 2020, 51(6): 3030-3041.
[9]Trzaska J. Calculation of critical temperatures by empirical formulae[J]. Archives of Metallurgy and Materials, 2016, 61(2): 981-986.

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