New silicides for new niobium protective coatings
作者： M Vilasi , M Francois , R Podor , J Steinmetz
DOI: 10.1016/S0925-8388(97)00234-X
关键词: Silicide 、 Cementation process 、 X-ray crystallography 、 Transition metal 、 Niobium 、 Metallurgy 、 Alloy 、 Materials science 、 Isostructural 、 Phase diagram
摘要: Efforts to improve at high temperature the oxidation resistance of pure niobium or commercial alloys have led development a pack cementation process for co-deposition Si, Ti, Cr and Fe. Owing knowledge quaternary Nb(Ti)-T-Cr-Siphase diagrams (T5Fe Co Ni) crystallographic features phases present in silicide coatings, new protective coatings been applied on Cb752 alloy. The results study three silicides isostructural with Nb Fe CrSi , which is substituted by Ti Ni are reported. performances two 33 6 mainly consisting such also outlined. © 1998 Elsevier Science S.A.
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