Abstract
Model alloys Ni-(20, 30)Cr (wt %) alloyed with (0, 1, 5, 15 %) Fe were exposed to flowing Ar-20 %CO2 gas at 800 °C. Samples were electropolished before reaction to avoid surface cold work effects on alloys diffusion. The oxidation resistance of 20Cr alloys gradually increased with increasing alloy Fe levels. All 30Cr alloys formed external chromia scales, but Ni-30Cr-(1, 5)Fe alloys underwent severe scale spallation. The effects of Fe additions on the formation and spallation of chromia scale are discussed in terms of alloy diffusion processes.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
