TY - JOUR
T1 - Effect of Cr addition on microstructure and oxidation resistance of a Ti5Si3-containing MoSiBTiC alloy
AU - Hatakeyama, Tomotaka
AU - Sekido, Nobuaki
AU - Yoshimi, Kyosuke
PY - 2020/4/15
Y1 - 2020/4/15
N2 - The effect of Cr addition on the oxidation behaviour of multiphase Mo–28Ti–14Si–6C–6B (at. %) alloy composed of Mo solid solution, Mo5SiB2, Ti5Si3, and TiC phases was investigated. Replacement of 10 at. % Cr for Mo hardly changed the microstructure of the alloy and significantly enhanced its oxidation resistance at 800 °C. At 1100 °C, the Cr-added MoSiBTiC alloy showed less weight loss than the Cr-free base alloy. However, Cr addition had little effect on the substrate reduction, particularly for longer oxidation periods, due to the high volatility of Cr oxide at higher temperatures.
AB - The effect of Cr addition on the oxidation behaviour of multiphase Mo–28Ti–14Si–6C–6B (at. %) alloy composed of Mo solid solution, Mo5SiB2, Ti5Si3, and TiC phases was investigated. Replacement of 10 at. % Cr for Mo hardly changed the microstructure of the alloy and significantly enhanced its oxidation resistance at 800 °C. At 1100 °C, the Cr-added MoSiBTiC alloy showed less weight loss than the Cr-free base alloy. However, Cr addition had little effect on the substrate reduction, particularly for longer oxidation periods, due to the high volatility of Cr oxide at higher temperatures.
KW - A. Alloy
KW - A. Intermetallics
KW - B. Weight loss
KW - C. High temperature corrosion
KW - C. Oxidation
UR - http://www.scopus.com/inward/record.url?scp=85077653882&partnerID=8YFLogxK
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U2 - 10.1016/j.corsci.2019.108418
DO - 10.1016/j.corsci.2019.108418
M3 - Article
AN - SCOPUS:85077653882
VL - 166
JO - Corrosion Science
JF - Corrosion Science
SN - 0010-938X
M1 - 108418
ER -