Failure analysis of flare tip

Madan, M and Bhuvana, R and Sujata, M and Venkataswamy, MA and Bhaumik, SK (2009) Failure analysis of flare tip. Project Report. National Aerospace Laboratories, Bangalore, India.

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Abstract

Evidences suggest that due to malfunctioning of the system or failure elsewhere, the burning of the gases had been taking place inside the flare stack in the vicinity of the SS310-Incoloy weld. It is believed that because of this burning, the temperature at this zone of the stack was in excess of 10000C for a prolonged time (ever since the thermocouple was not functioning). This had promoted microstructural changes in the material as well as intergranular sulphide corrosion cracking leading to the failure. The failure has taken place at the SS310-weld interface and in the HAZ of SS310. The reason(s) for burning of the gases inside the stack and not at the mouth of the flare tip needs to be established.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Flare tip;Incoloy;SS310;Weld;Heat effects;Sulphide corrosion; Cracking
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Ms. Alphones Mary
Date Deposited: 18 Jul 2011 11:10
Last Modified: 18 Jul 2011 11:10
URI: http://nal-ir.nal.res.in/id/eprint/9413

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