Papers by Keyword: 310s Stainless Steel

Abstract: Corroded behavior of 310S stainless steel by molten Al-Si eutectic alloy in high temperature thermal cycles of 495～620°C was investigated. SEM/EDX, XRD and metallographic technique were used for observing and analyzing the morphology, composition and internal microstructure of the corrosion specimens. Results showed: on the surface of 310S stainless steel, after corroded through 300 melting-solidification thermal cycles, a corrosion layer of about 3μm thick, composed mainly of Fe2Al5 phase and FeAl3 phase was formed. Besides, upon observation of internal microstructure of 310S stainless steel after corrosion, plenty intercrystalline precipitation was present, which resulted in relatively severe intercrystalline corrosion. This was considered the principal factor that compromised mechanical property of the specimen of 310S stainless steel.

Abstract: TiB₂ protective coating was prepared in the 310S container wall to improve the life of the container and achieve long-term protection purposes, and also studied the properties of TiB₂ coating with anti-heat shock, mechanical and anticorrosion to molten Al-12.07%Si . The results showed that the anti-heat shock properties of the coating was good, bonding strength between coating and substrate was high, the corrosion resistance was improved under certain limited temperature, and the life of container was also remarkable enhanced.