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Change in Electrochemical Property of 12%Cr Ferritic Steel in 1M-KOH Solution Due to Creep
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A Nonlinear Transformation Field Procedure for Periodic Masonry Based on an Equivalent Cosserat Medium
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Electrodeposition and Mechanical and Corrosion Resistance Properties of Tertiary Ni-W/Al2O3/CNT Nanocomposite Coatings
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Change in Electrochemical Property of 12%Cr Ferritic Steel in 1M-KOH Solution Due to Creep

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Abstract:

Electrochemical material characterization method was applied to the creep specimens of 12%Cr ferritic steel to evaluate the changes in precipitates during creep. Experimental results revealed that the peak current densities “Ip1” and “Ip2” appeared at specific potentials during anodic polarization curve measurement in 1M-KOH solution. These peak current densities corresponded to the selective dissolution of several kinds of precipitates, respectively. The Ip2, which reflected the amount of M23C6 and Laves phase, increased more siginificantly with creep than thermal aging. On the other hand, the effect of applied stress was not reflected on the change in Ip1, although it increased with thermal aging and creep as well as the Ip2.

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Periodical:

Advanced Materials Research (Volumes 89-91)

Pages:

1-5

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.89-91.1

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Online since:

January 2010

Authors:

Yousuke Abe, Shinichi Komazaki, Toshiki Mitsueda, Yutaka Kohno

Keywords:

Creep, Electrochemical Methods, High Chromium Ferritic Steel, Nondestructive Evaluation, Precipitation

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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