Effect of microstructure on non-linear behavior of ultrasound during low cycle fatigue of pearlitic steels

Palit Sagar, S and Metya, Avijit Kumar and Ghosh, M and Sivaprasad, S (2011) Effect of microstructure on non-linear behavior of ultrasound during low cycle fatigue of pearlitic steels. Materials Science and Engineering A, 528 (6). pp. 2895-2898.

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Abstract

Influence of microstructural changes on the second harmonics of sinusoidal ultrasonic wave during low cycle fatigue (LCF) deformation in pearlitic steel was studied. Fatigue tests were interrupted and at every interruption, non-linear ultrasonic (NW) parameter (beta) was determined. Microstructures of cyclically deformed specimens at various cycles were examined by transmission electron microscopy (TEM). The variation of beta with fatigue cycles was correlated with the microstructural changes and the results were explained through the variation in dislocation morphology and carbon content of the steel. (C) 2010 Elsevier B.V. All rights reserved.

Item Type:Article
Official URL/DOI:http://apps.isiknowledge.com/full_record.do?produc...
Uncontrolled Keywords:Low cycle fatigue; Non-linear ultrasonic; Dislocations; Microstructure; Carbon steel
Divisions:Material Science and Technology
ID Code:3074
Deposited By:Sahu A K
Deposited On:22 Jun 2011 09:57
Last Modified:17 Sep 2012 15:31
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