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| Marine Climate Environmental Adaptability of Alloy Steel Bolt |
| Received:October 24, 2017 Revised:January 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.01.009 |
| KeyWord:alloy steel bolt marine climate environmental adaptability |
| Author | Institution |
| YANG Yi |
Southwest Research Institute of Technology and Engineering, Chongqing , China |
| ZHAO Jun-jun |
Chongqing Jialing Special Equipment Co. Ltd, Chongqing , China |
| WANG Mao-chuan |
Southwest Research Institute of Technology and Engineering, Chongqing , China |
| YANG Xiao-kui |
Southwest Research Institute of Technology and Engineering, Chongqing , China |
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| Abstract: |
| Objective To research effects of marine climate environment on alloy steel bolt. Methods Outdoor exposure test was carried out for 24 months at Wanning, Hainan site. Mechanical properties, macroscopic morphology, microscopic morphology and corrosion product change of alloy steel bolt were researched through SEM, tensile and fatigue machine and potentiodynamic polarization (PC). Results After 24 months of outdoor exposure, the ultimate shear of alloy steel bolts decreased by 3.4%, its ultimate tension decreased by 7.7%, its fatigue life decreased by 41.3%. Conclusion After 24 months of outdoor exposure, the alloy steel bolt has full-scale corrosion, which has little effect on the ultimate tension and shear of bolts and has great impact on fatigue life of bolts. |
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