Kinetics of Fe2Al5 phase formation on 4130 steel by Al pack cementation and its oxidation resistance
作者： Y. I. Son , C. H. Chung , R. R. Gowkanapalli , C. H. Moon , J. S. Park
DOI: 10.1007/S12540-015-1001-0
关键词:
摘要: Aluminide coatings were developed on low alloy AISI 4130 steel in the temperature range of 500~700 °C by pack cementation method. A Fe2Al5 phase was produced surface samples. The coating layer showed a single and uniform structure. growth kinetics exhibited diffusional growth. activation energy for formation estimated to be 53.7 kJ mol−1. Oxidation tests carried out both aluminized bare steels °C. In case coated specimens, upper region aluminide converted an Al2O3 layer. oxidation resistance that presence increased via specimen about two orders. has also been discussed terms microstructural observations estimation corresponding parameters.
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