Microstructure and cyclic oxidation behavior of silicide coating and Si–Al coating on Cr–50Nb alloy
Source abstract
Abstract
Abstract To protect Cr–50Nb alloys from high-temperature oxidation, the silicide diffusion coating and Si–Al coating were produced by pack cementation. The results indicate that the two coatings have three-layer structure and the interfaces are smooth. Uncoated Cr–50Nb alloy occur catastrophic oxidation at the initial oxidation stage at 1200 °C. However, the scale spalling resistance of the two coatings are improved significantly, and Si–Al coating exhibits excellent resistance to oxidation. During cyclic oxidation in air at 1200 °C for 100 h, the weight loss of Si–Al coating is 1.39 mg/cm 2 and the mass gain is 6.01 mg/cm 2 .
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Intermetallics and Advanced Alloy Properties · High-Temperature Coating Behaviors
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References (15)
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