Effects of Surface Treatment Status on Oxide Scale Growth Morphology of High Chromium Cast Iron Roll
The effects of surface treatment status on the growth morphology and cracking behavior of oxide scale at 800 ℃ for high chromium cast iron roll were studied by TGA and SEM.The results show that compared with polished surface of the samples,the rough surface can significantly accelerate the growth of oxide scale and cracking inclination.The growth morphology and mechanism of crack initiation of oxide scale under two surface treatment status are different.