EFFECT OF MAGNETRON-SPUTTEREDAlFILM ON LOW-TEMPERATURE PACK-ALUMINIZING COATING FOR OIL CASING STEELN80

Min Huang, Yu Wang (), Meng-Xian Zhang, Yan-Qiu Huo and Peng-Jin Gao
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Min Huang: Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China;
Yu Wang: Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China
Meng-Xian Zhang: Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China
Yan-Qiu Huo: Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China
Peng-Jin Gao: Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China

Surface Review and Letters (SRL), 2014, vol. 21, issue 04, 1-6

Abstract: Low-temperature aluminizing coating was prepared onto the surface of oil casing steelN80with a magnetron-sputteredAlfilm to improve its corrosion resistance. Results show that magnetron-sputteredAlfilm is able to form gradient aluminide coating, composed of iron aluminideFeAl3,Fe2Al5andFe3Alwith different contents of aluminum. Both the density and continuity of iron aluminide layer for oil casing steelN80with magnetron-sputteredAlfilm can be improved. Under the same corrosion condition, aluminized oil casing steelN80with a magnetron-sputteredAlfilm shows an outstanding corrosion resistance than those of original and aluminized ones without magnetron-sputteredAlfilm. The positive effect ofAlfilm is considered as the concentration change of activeAlatom for diffusion to form the aluminizing coating during the pack processing.

Keywords: Oil casing steelN80; magnetron sputteredAlfilm; aluminizing coating (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X1450053X

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