Coating treatment for alloy resistance at high temperatures to AISI 304 alloy
Abstract
The oxidation resistance of the austenitic alloy AISI 304 was studied, after being coated by cementing with aluminum at a high temperature of 900°C, because the alloy is used industrially, and in very harsh environmental conditions such as sulfur and oxidation. A light microscope was used in the research, to study the structural composition of the alloy, In its three phases, X-ray diffraction was used to determine the phases.In addition to measuring the hardness, the results proved that the coated alloy gave a high oxidation resistance of about 75% of the base alloy, while the corrosion resistance increased by 100% after treating it to the same degree.
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