Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2007) Failure analysis of fasteners used in pressure safety index valve. Project Report. National Aerospace Laboratories, Bangalore, India.
Full text not available from this repository. (Request a copy)Abstract
Three out of the four fasteners sent for investigation were found to have fractured in the threaded region. The fractographic features were completely obliterated due to post fracture corrosion. However, microstructural study and compositional analysis confirmed that the failure of the studs was by chloride stress corrosion cracking (SCC). Examination revealed that the SCC was promoted due to high hardness of the studs. Measurements showed that studs have average hardness of 582 HV as against the specification of 321 BHN. A detailed analysis of the failure is presented in this report.
| Item Type: | Monograph (Project Report) |
|---|---|
| Uncontrolled Keywords: | Fastener;Hardness;Stress corrosion cracking |
| Subjects: | AERONAUTICS > Aeronautics (General) CHEMISTRY AND MATERIALS > Chemistry and Materials (General) |
| Depositing User: | Ms. Alphones Mary |
| Date Deposited: | 27 Jul 2011 08:41 |
| Last Modified: | 27 Jul 2011 08:41 |
| URI: | http://nal-ir.nal.res.in/id/eprint/9576 |
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