|
| Mechanical Properties of 30CrMnSiNi2A Steel in Simulated High and Low Air Alternation Environment |
| Received:August 16, 2019 Revised:October 22, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.02.011 |
| KeyWord:low pressure pre-corrosion fatigue respiration effect |
| Author | Institution |
| ZHANG Tai-feng |
Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao , China |
| ZHANG Yong |
Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao , China |
| FAN Wei-jie |
Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao , China |
| QI Yang |
Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao , China |
| YANG Zhen |
Department of Aeronautical Mechanical Engineering and Command, Qingdao Branch of Naval Aeronautical University, Qingdao , China |
|
| Hits: |
| Download times: |
| 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. |
| Close |
|
|
|