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Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

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

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Title
Nondestructive evaluation of flow properties in thermally aged Cr-Mo-V steel using instrumented indentation tests
Author
Kim, Ju-YoungLee, J. -JLee, K. -W.Kwon, D.
Keywords
CrMoV steel; Flow properties; Heating temperatures; Instrumented indentation; Instrumented indentation technique; Larson-Miller parameter; Microstructure evolutions; Non destructive evaluation; Spherical indenter; Steel samples
Issue Date
2009-07
Publisher
SPRINGER
Citation
JOURNAL OF MATERIALS SCIENCE, v.44, no.13, pp.3561 - 3565
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 A degrees 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.
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DOI
10.1007/s10853-009-3480-1
ISSN
0022-2461
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MSE_Journal Papers
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