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High Temperature Oxidation Performance of a Nb and Ti Stabilized 430 Ferritic Stainless Steel |
Xunzeng HUANG,Yitao YANG( ) |
School of Materials Science and Engineering, Shanghai University, Shanghai 200072 |
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Cite this article:
Xunzeng HUANG,Yitao YANG. High Temperature Oxidation Performance of a Nb and Ti Stabilized 430 Ferritic Stainless Steel. Chinese Journal of Materials Research, 2014, 28(9): 641-648.
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Abstract High temperature oxidation performance of an Nb-Ti-stabilized 430 ferritic stainless steel (NTS430FSS) and SUS 430 ferritic stainless steel (SUS430FSS) was comparatively investigated by means of isothermal oxidation test, metallographic observation, scanning electron microscope (SEM) along with chemical microanalysis by energy dispersive spectrometry (EDS) and X-ray diffraction analysis. The results show that the oxidation weight gain was reduced for the steel with Nb and Ti addition. And the oxidation activation energies were 72.6 kJ/mol and 121.6 kJ/mol for the steel without and with Nb and Ti addition respectively. The adhesion between the oxide scale and matrix was enhanced by titanium oxide which dopped into the oxide scale. As a result, the Nb-Ti-stabilized 430 ferritic stainless steel exhibited better high temperature oxidation resistance.
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Received: 19 March 2014
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