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An investigation of dynamic failure in 2.3Ni-1.3Cr-0.17C steel

Venkert, A. and Guduru, P. R. and Ravichandran, G. (2000) An investigation of dynamic failure in 2.3Ni-1.3Cr-0.17C steel. Metallurgical and Materials Transactions A, 31 (4). pp. 1147-1154. ISSN 1073-5623.

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The dominant micromechanisms of dynamic failure initiation in high-strength ductile steels were investigated using 2.3Ni-1.3Cr-0.17C steel. Fracture experiments were conducted in three-point bend and one-point bend configurations. The influence of loading rate on the extent of each micromechanism in the fracture-initiation process was considered. The fracture surfaces consisted of a tunneled region and shear lips. The shear lips are characterized by microvoids. The tunneled region consists of large voids and microvoids that coalesced by impingement. At high loading rates, localized molten zones are observed at the tunnel-shear lip interface. The material-rate sensitivity causes a decrease in the size of the tunneled area at higher loading rates.

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Ravichandran, G.0000-0002-2912-0001
Additional Information:© 2000 Springer International Publishing AG. Manuscript submitted July 21, 1998. The authors would like to acknowledge the support of the Office of Naval Research under Grant No. N00014-95-1-0453 (Dr. G. Yoder, Scientific Officer). Discussions with Professor A.J. Rosakis are gratefully acknowledged.
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Office of Naval Research (ONR)N00014-95-1-0453
Issue or Number:4
Record Number:CaltechAUTHORS:20150227-102141194
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Official Citation:Venkert, A., Guduru, P.R. & Ravichandran, G. An investigation of dynamic failure in 2.3Ni-1.3Cr-0.17C steel. Metall and Mat Trans A 31, 1147–1154 (2000).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55333
Deposited By: Cheryl Gause
Deposited On:27 Feb 2015 23:35
Last Modified:09 Mar 2020 13:19

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