Hot Corrosion Behavior of Stainless Steel with Al-Si/Al-Si-Cr Coating

The 1Cr18Ni9Ti stainless steel with Al-Si/Al-Si-Cr coatings is prepared by slurry process and vacuum diffusion, and the hot corrosion behavior of the stainless steel with/without the coatings is studied under the condition of Na SO film at 950 °C in air. Results show that the corrosion kinetics of s...

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Veröffentlicht in:	High temperature materials and processes 2017-03, Vol.36 (3), p.243-248
Hauptverfasser:	Fu, Guangyan, Wu, Yongzhao, Liu, Qun, Li, Rongguang, Su, Yong
Format:	Artikel
Sprache:	eng
Schlagworte:	81.65. Kn Al-Si coating Al-Si-Cr coating Aluminum Corrosion products Corrosion resistance Hot corrosion Protective coatings Silicon dioxide stainless steel Stainless steels
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Zusammenfassung:	The 1Cr18Ni9Ti stainless steel with Al-Si/Al-Si-Cr coatings is prepared by slurry process and vacuum diffusion, and the hot corrosion behavior of the stainless steel with/without the coatings is studied under the condition of Na SO film at 950 °C in air. Results show that the corrosion kinetics of stainless steel, the stainless steel with Al-Si coating and the stainless steel with Al-Si-Cr coating follow parabolic laws in several segments. After 24 h corrosion, the sequence of the mass gain for the three alloys is the stainless steel with Al-Si-Cr coating
ISSN:	0334-6455 2191-0324
DOI:	10.1515/htmp-2015-0154