Failure analysis of oxygen hose of the lance equipment in LIB shop of Tata steel

Bhattacharyya, S and Banerjee, A and Bhaumik, SK (2008) Failure analysis of oxygen hose of the lance equipment in LIB shop of Tata steel. Engineering Failure Analysis, 15 (8). pp. 1019-1026.

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    Abstract

    The hose of the oxygen lancing equipment in LD shop 2 has failed at the weld-bellows interface by reverse bending fatigue. The bending stresses were resulted due to inclined fitting of the hose at the fixed flange end. No metallurgical abnormalities or weld defects or mechanical damages were responsible for the fatigue crack initiation. It is recommended that if inclined fitment of the hose is not a process requirement, the original design be restored to realize the expected life of the component. On the other hand, if inclined fitment cannot be avoided, additional support may be provided for the hose at the fixed flange end to avoid reverse bending at the weld-bellows interface. A detailed analysis of the failure is presented in this report.

    Item Type: Journal Article
    Uncontrolled Keywords: Oxygen hose;Bellows;Fatigue;Reverse bending
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    Division/Department: Other, Other, Materials Science Division
    Depositing User: Ms. Alphones Mary
    Date Deposited: 02 Jan 2009
    Last Modified: 27 Aug 2012 15:42
    URI: http://nal-ir.nal.res.in/id/eprint/4940

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