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EFFECT OF HEAT TREATMENT ON HYDROGEN EMBRITTLEMENT RESISTANCE OF 30CrMnSiA STEEL |
Li Renshun Wu Rengen Zang Peishen and Chen Yue (Harbin Institute of Technolgy)(Sahnghai Xinjiang Machine Factory) |
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Abstract The effect of various heat treatment on hydrogen embrittlement resis tance of 30CrMnSiA steel has been studied experimentally.The results show that the application of sub-critical quenching at(Ac_3-10℃)or twice quenching at(Ac_3+20℃),between quenching at 900℃ and temp ering at 500℃,can raise the critical stress óc of the steel in tempered sorbite condition to hydrogen embrittlement by 9.6% and 7.9% respec- tively.Twice quenching at(Ac_3+20℃)after isothermal quenchnig can raise óc by 10.4%.Isothermal quenching at 370℃ can raise óc of plaet- notched specimens by 60%.The increase of the hydrogen embrittlement resistance is attributed to the fact that the existence of tough ferrite or retained austenite raises the plasticity and toughness of the matrix. The refining of grains,the change of α and β phases from lump to needle shape,the refining of dispersal carbide and the reduction of absorbed hydrogen content are also responsible for the reduction of he suscep- tibility to hydrogen embrittlement.
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Received: 25 June 1990
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Cite this article:
Li Renshun Wu Rengen Zang Peishen and Chen Yue (Harbin Institute of Technolgy)(Sahnghai Xinjiang Machine Factory). EFFECT OF HEAT TREATMENT ON HYDROGEN EMBRITTLEMENT RESISTANCE OF 30CrMnSiA STEEL. J Chin Soc Corr Pro, 1990, 10(3): 187-196.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1990/V10/I3/187
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[1] 上海新江机器厂,30CrMnSiA钢锌螺栓镀断裂分析,1980年. [2] 李仁顺等,高强度螺栓用30CrMnSiA钢的工氢脆,“航天工艺”金属材料的氢脆及应力腐蚀开裂专辑,1983. 10. [3] 李仁顺等,改善高强度钢抗氢脆延迟断裂性能的热处理新工艺“航天工艺”金属材料的氢脆及应力腐蚀开裂专辑,1983. 10. [4] 上海新江机器厂,螺栓镀锌和液压试验工艺规程,1979年 [5] #12 [6] 王传雅等,无大连铁道学院学报,金属材料及热处理专辑,No.1、 2,50(1983) [7] #12 [8] Gibala,R.,et.al.,Hydrogen Enbrittlement and Stress Corrosion Cracking,Presented at a Sympsium held at Case Western Reserue University on June 1-3,61(1980)) |
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