Hydrogen enhanced fatigue crack growth in an HSLA steel

Roy, Arijit and Manna, I and Tarafder, S and Sivaprasad, S and Paswan, S and Chattoraj, I (2013) Hydrogen enhanced fatigue crack growth in an HSLA steel. Materials Science and Engineering A, 588 (IF-2.108). pp. 86-96.

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Fatigue crack growth rate (FCGR) for an HSLA steel was studied with in-situ hydrogen charging. The effects of different parameters, like stress intensity range (Delta K), frequency, load ratio (R), stress values and crack length have been investigated. The hydrogen contribution to FCGR decreased with increasing Delta K. FCGR was inversely dependent on frequency. The role of loading strain rate on the hydrogen enhanced FCGR was explained. The effect of load ratio on hydrogen enhanced FCGR was not monotonic. A dependence of FCGR of hydrogenated samples on crack length was observed and explained. (C) 2013 Elsevier B.V. All rights reserved

Item Type:Article
Official URL/DOI:http://apps.webofknowledge.com/full_record.do?prod...
Uncontrolled Keywords:Steel; Hydrogen embrittlement; Fatigue; Fracture; Electron microscopy
Divisions:Material Science and Technology
ID Code:6800
Deposited By:Sahu A K
Deposited On:03 Jan 2014 12:53
Last Modified:04 Apr 2014 15:14
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