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Failure of stainless steel adaptor used in propellant control system

✍ Scribed by Abhay K. Jha; E. Jacob; P. Ramesh Narayan; S. Arumugham

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
480 KB
Volume
5
Category
Article
ISSN
1350-6307

No coin nor oath required. For personal study only.

✦ Synopsis

An austenitic stainless steel adaptor used in the command pressure distributor assembly of a test stand for liquid fuel engines cracked during one of the ground tests. The failed component was studied through metallographic techniques to analyse the cause of failure. The study revealed that the crack initiated at a location containing a brittle iron precipitate rich in silicon and propagated by vibration-induced fatigue through the tube wall. ~

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