✦ LIBER ✦
Metallurgical analysis of failed SS 304 bolts used in flanged joints of a liquid oxidiser pipe line
✍ Scribed by Abhay K Jha; S.V.S.N Murty; V Diwakar; K Sree Kumar
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 831 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1350-6307
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✦ Synopsis
Austenitic stainless steel (AISI 304 grade) bolts in flanged joints of a fuel and oxidizer pipeline have been found cracked after 4 years in service. The failed bolts have been studied through standard metallographic techniques to analyse the cause of the failure. Deposits on the bolts were analysed using ion chromatographic techniques. The study revealed corrosive attack from the oxidizing agents, which caused grain dissolution under the stress existing in the assembled bolts.