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Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C
Yang, Y. F.; Liu, Z. L.; Ren, P.; Wang, Q. W.; Bao, Z. B.; Zhu, S. L.; Li, W.
2020-05-01
Source PublicationCORROSION SCIENCE
Volume167
AbstractHot corrosion behavior of Pt + Hf co-modified NiAl coating was evaluated in a salt mixture of Na2SO4/NaCl(75:25, wt./wt.) at 900 degrees C in comparing to Pt modified NiAl coating. Worm-like embossments appeared and developed in Pt+Hf co-modified NiAl coating due to the formation of slack Al2S3 and gaseous chloride bubbles. The fast dissolution of HfO2 during hot corrosion led to the disappearing of diffusion barrier effect of Hf-rich zone and elements like, Ni, Ti and N diffused into the oxide scale. The hot corrosion mechanism of Pt + Hf co-modified NiAl coating and the effects of Hf on this process were discussed in this work.
DOI10.1016/j.corsci.2020.108527
WOS IDWOS:000525869800037
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/82916
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Yang, Y. F.,Liu, Z. L.,Ren, P.,et al. Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C[J]. CORROSION SCIENCE,2020,167.
APA Yang, Y. F..,Liu, Z. L..,Ren, P..,Wang, Q. W..,Bao, Z. B..,...&Li, W..(2020).Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C.CORROSION SCIENCE,167.
MLA Yang, Y. F.,et al."Hot corrosion behavior of Pt plus Hf co-modified NiAl coating in the mixed salt of Na2SO4-NaCl at 900 degrees C".CORROSION SCIENCE 167(2020).
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