Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel
Ultrahigh strength steel has been widely used to manufacture aircraft landing gear and other load-bearing structures，which is prone to corrosion fatigue failure when serving in harsh marine environment. The fatigue crack propagation behavior of small-sized samples in laboratory is different from tha...
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| Format: | Article |
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Journal of Aeronautical Materials
2024-12-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2024.000032 |
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| author | LI Yizhe HUANG Hailiang BIAN Guixue WANG Andong WANG Xi |
| author_facet | LI Yizhe HUANG Hailiang BIAN Guixue WANG Andong WANG Xi |
| author_sort | LI Yizhe |
| collection | DOAJ |
| description | Ultrahigh strength steel has been widely used to manufacture aircraft landing gear and other load-bearing structures，which is prone to corrosion fatigue failure when serving in harsh marine environment. The fatigue crack propagation behavior of small-sized samples in laboratory is different from that of actual structures due to constraint effect. The fatigue crack propagation tests of A100 ultra-high strength steel in air，neutral and acidic seawater are carried out using single edge tension specimens with different crack depths and specimen thickness. The results show that with the increase of crack depth and sample thickness，the constraint level of crack tip increases，the fatigue crack growth resistance decreases，and the crack growth rate accelerates. The combined effect of constrains and corrosion environment significantly accelerate the fatigue crack growth rate of A100 ultrahigh strength steel. As the amplitude of stress intensity factor ΔK equals to 30 MPa·m1/2，a good positive correlation between constraint parameters and corrosion fatigue crack growth rate can be observed. The relevant research results can provide reference for the service life assessment of ultrahigh strength steel structures in marine environment. |
| format | Article |
| id | doaj-art-15691569d86243eea58fa34b7564159b |
| institution | Kabale University |
| issn | 1005-5053 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj-art-15691569d86243eea58fa34b7564159b2024-12-09T02:42:59ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532024-12-01446909610.11868/j.issn.1005-5053.2024.000032a2024-0032Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steelLI Yizhe0HUANG Hailiang1BIAN Guixue2WANG Andong3WANG Xi4Qingdao Branch，Naval Aeronautical University，Qingdao 266041，Shandong，ChinaQingdao Branch，Naval Aeronautical University，Qingdao 266041，Shandong，ChinaQingdao Branch，Naval Aeronautical University，Qingdao 266041，Shandong，ChinaQingdao Branch，Naval Aeronautical University，Qingdao 266041，Shandong，ChinaQingdao Branch，Naval Aeronautical University，Qingdao 266041，Shandong，ChinaUltrahigh strength steel has been widely used to manufacture aircraft landing gear and other load-bearing structures，which is prone to corrosion fatigue failure when serving in harsh marine environment. The fatigue crack propagation behavior of small-sized samples in laboratory is different from that of actual structures due to constraint effect. The fatigue crack propagation tests of A100 ultra-high strength steel in air，neutral and acidic seawater are carried out using single edge tension specimens with different crack depths and specimen thickness. The results show that with the increase of crack depth and sample thickness，the constraint level of crack tip increases，the fatigue crack growth resistance decreases，and the crack growth rate accelerates. The combined effect of constrains and corrosion environment significantly accelerate the fatigue crack growth rate of A100 ultrahigh strength steel. As the amplitude of stress intensity factor ΔK equals to 30 MPa·m1/2，a good positive correlation between constraint parameters and corrosion fatigue crack growth rate can be observed. The relevant research results can provide reference for the service life assessment of ultrahigh strength steel structures in marine environment.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2024.000032a100ultrahigh strength steelconstraint effectcorrosion fatiguecrack propagation |
| spellingShingle | LI Yizhe HUANG Hailiang BIAN Guixue WANG Andong WANG Xi Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel Journal of Aeronautical Materials a100ultrahigh strength steel constraint effect corrosion fatigue crack propagation |
| title | Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel |
| title_full | Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel |
| title_fullStr | Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel |
| title_full_unstemmed | Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel |
| title_short | Constraint effect on corrosion fatigue crack growth behavior of A100 ultrahigh strength steel |
| title_sort | constraint effect on corrosion fatigue crack growth behavior of a100 ultrahigh strength steel |
| topic | a100ultrahigh strength steel constraint effect corrosion fatigue crack propagation |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2024.000032 |
| work_keys_str_mv | AT liyizhe constrainteffectoncorrosionfatiguecrackgrowthbehaviorofa100ultrahighstrengthsteel AT huanghailiang constrainteffectoncorrosionfatiguecrackgrowthbehaviorofa100ultrahighstrengthsteel AT bianguixue constrainteffectoncorrosionfatiguecrackgrowthbehaviorofa100ultrahighstrengthsteel AT wangandong constrainteffectoncorrosionfatiguecrackgrowthbehaviorofa100ultrahighstrengthsteel AT wangxi constrainteffectoncorrosionfatiguecrackgrowthbehaviorofa100ultrahighstrengthsteel |