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| Analysis and Preventive Measures on Connection Failure of Stainless Steel Bolt Flange |
| Received:September 07, 2016 Revised:January 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2017.01.001 |
| KeyWord:stainless bolt stress corrosion failure analysis |
| Author | Institution |
| HUANG Ling-yan |
Beijing Institute of Space Launch Technology, Beijing , China |
| TANG Qiang |
Beijing Institute of Space Launch Technology, Beijing , China |
| ZHANG Bo |
Beijing Institute of Space Launch Technology, Beijing , China |
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| Abstract: |
| Objective To study the mechanism on connection failure of stainless steel bolts in low-temperature environment. Methods Methods such as macro and micro detection, chemical component analysis and energy spectrum analysis were adopted to analyze chemical components of stainless steel bolts and ingredients of corrosion products in fracture. Results The analysis indicated that the main reason was the stress corrosion cracking in low-temperature environment. Conclusion Preventive measures on stress corrosion of bolts in low temperature filling system are proposed based on main influencing factors for stress corrosion of stainless steel bolts. |
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