Corrosion and microstructure of the metal silicide (Mo1−xNbx)5Si3
Source abstract
Abstract
Abstract (Mo 1− x Nb x ) 5 Si 3 ( x = 0, 0.2,0.4) was fabricated by hot press sintering method. The microstructure, mechanical properties and corrosion behavior were studied. Results showed that the hardness, flexure strength and fracture toughness are improved compared with pure Mo 5 Si 3 with Nb content. The alloy exhibited good corrosion resistance in HCl solution due to the spontaneous formation of a compact and protective passive film as well as the high chemical stability and strong inter-atomic bonds inherent to the (Mo 1− x Nb x ) 5 Si 3 alloys phases. (Mo 1− x Nb x ) 5 Si 3 alloys displayed relatively low corrosion resistance in 1 mol/L NaOH solution due to continuously formed and dissolved of Na 2 MoO 4 , NaNbO 3 and Na 2 SiO 3 .
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Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · MXene and MAX Phase Materials · Semiconductor materials and interfaces
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References (25)
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