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Nondestructive evaluation of flow properties in thermally aged Cr–Mo–V steel using instrumented indentation tests

Kim, J.-Y. and Lee, J.-J. and Lee, K.-W. and Kwon, D. (2009) Nondestructive evaluation of flow properties in thermally aged Cr–Mo–V steel using instrumented indentation tests. Journal of Materials Science, 44 (13). pp. 3561-3565. ISSN 0022-2461 http://resolver.caltech.edu/CaltechAUTHORS:20090904-100345060

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Abstract

Instrumented indentation technique has been utilized to assess the flow properties in X20CrMoV12.1 steel, widely used in power generation facilities, at various heat treatment stages simulating thermal aging during the service. The steel samples were heat treated at 600 and 650 °C for 1–2,000 h and flow properties were evaluated at various heating temperature and times by instrumented indentation tests using spherical indenter. Microstructure evolution after various heat treatments has been investigated to correlate the degradation of flow properties with the microstructure evolution due to thermal aging. We show that the degradation in flow properties in the steel sample can be described by Larson–Miller parameter analysis.


Item Type:Article
Additional Information:© 2009 Springer. Received: 6 August 2008. Accepted: 8 April 2009. Published online: 24 April 2009.
Record Number:CaltechAUTHORS:20090904-100345060
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20090904-100345060
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15606
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:10 Sep 2009 16:46
Last Modified:26 Dec 2012 11:19

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