| 模拟高低空交变环境下30CrMnSiNi2A钢力学性能研究 |
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| 引用本文： | 张泰峰,张勇,樊伟杰,齐阳,杨振.模拟高低空交变环境下30CrMnSiNi2A钢力学性能研究[J].装备环境工程,2020,17(2):66-71. |
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| 作者姓名： | 张泰峰 张勇 樊伟杰 齐阳 杨振 |
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| 作者单位： | 海军航空大学 青岛校区 航空机械工程与指挥系,山东 青岛,266041 |
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| 摘 要： | 目的研究30CrMnSiNi2A钢制腔体的力学性能影响及演化规律。方法借助高低温低气压试验和中性盐雾试验交替进行,模拟高低空交替变化的腐蚀环境。通过比较静力拉伸试验和疲劳试验的结果,进一步揭示预腐蚀对静力拉伸性能和疲劳性能的影响。结果经过预腐蚀处理,30CrMnSiNi2A钢制腔体的力学抗拉强度下降了0.73%,规定塑延伸强度上升了0.04%,断后伸长率下降了0.95%。疲劳寿命数据与对数疲劳寿命数据均符合正态分布,未发生明显变化。结论高低空交变环境下,腔体内部会发生一定程度的腐蚀,但由于腐蚀程度较小,对30CrMnSiNi2A钢力学性能影响不大。
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| 关 键 词： | 低气压 预腐蚀 疲劳 呼吸作用 |
| 收稿时间： | 2019/8/16 0:00:00 |
| 修稿时间： | 2019/10/22 0:00:00 |
Mechanical Properties of 30CrMnSiNi2A Steel in Simulated High and Low Air Alternation Environment |
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| ZHANG Tai-feng,ZHANG Yong,FAN Wei-jie,QI Yang and YANG Zhen.Mechanical Properties of 30CrMnSiNi2A Steel in Simulated High and Low Air Alternation Environment[J].Equipment Environmental Engineering,2020,17(2):66-71. |
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| Authors: | ZHANG Tai-feng ZHANG Yong FAN Wei-jie QI Yang and YANG Zhen |
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| Institution: | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China,Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China,Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China,Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China and Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
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| Abstract: | The paper aims to study the influence of mechanical properties and evolution law of 30CrMnSiNi2A Steel cavity. The corrosion environment was simulated by alternating high and low temperature low air pressure test and neutral salt spray test. By comparing the results of static tensile test and fatigue test, the influence of pre-corrosion on static tensile and fatigue properties was further revealed. The results showed that the mechanical tensile strength of 30CrMnSiNi2A steel cavity decreased by 0.73%; the specified plastic elongation increased by 0.04%; and the elongation after fracture decreased by 0.95% after pre-corrosion treatment; the fatigue life data and logarithmic fatigue life data were in accordance with the normal distribution. There was no significant change. The results show that there will be a certain degree of corrosion in the cavity under the high and low air alternation environment, but the mechanical properties of 30CrMnSiNi2A Steel will not be affected by the small degree of corrosion. |
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| Keywords: | low pressure pre-corrosion fatigue respiration effect |
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