| 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. ZHANG Tai-feng,ZHANG Yong,FAN Wei-jie,QI Yang,YANG Zhen.Mechanical Properties of 30CrMnSiNi2A Steel in Simulated High and Low Air Alternation Environment[J].Equipment Environmental Engineering,2020,17(2):66-71. |
| 模拟高低空交变环境下30CrMnSiNi2A钢力学性能研究 |
| Mechanical Properties of 30CrMnSiNi2A Steel in Simulated High and Low Air Alternation Environment |
| 投稿时间：2019-08-16 修订日期：2019-10-22 |
| DOI：10.7643/issn.1672-9242.2020.02.011 |
| 中文关键词: 低气压 预腐蚀 疲劳 呼吸作用 |
| 英文关键词:low pressure pre-corrosion fatigue respiration effect |
| 基金项目: |
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| Author | Institution |
| ZHANG Tai-feng | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
| ZHANG Yong | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
| FAN Wei-jie | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
| QI Yang | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
| YANG Zhen | Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao 266041, China |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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