OXIDATION RESISTANT ALUMINUM ALLOYED SIMO CAST IRON FOR HIGH TEMPERATURE APPLICATION

摘要

In conclusion high silicon and aluminum alloyed cast iron is attractive for usage in high temperature application Although there are some deficits to mention. At first, it is hard to control and to keep the graphite morphology in close borders and secondly, the brittleness of this material at room temperature is a grave subject to handle and to control. In summary, the benefits of the material exceed the deficits: extremely high oxidation and spallation resistance material costs are one fourth of the costs of an austenitic cast iron because of the nickel savings good mechanical high temperature properties due to kappa-phase precipitation. Subjects to deal with during future investigation: focus on mechanical properties of the alloys EBSD and growth behavior analysis of the oxide layer. oxidation resistance, oxide layer thickness, ferritic SiMo cast iron, aluminum addition, austenitic D5S