Iron-Aluminum Base Alloys—cheap stainlesses of the future? 590041
IRON-aluminum base alloys have shown great resistance to high-temperature oxidation, the authors report. These alloys can be made to exceed the resistance of any stainless steel.
Several problems exist in connection with the alloys: room-temperature brittleness, only moderate high-temperature strength, and susceptibility to grain growth. However, the authors think these problems will probably be solved with further experimentation.
The principal advantages of the alloys are their low cost and availability, factors in case a chromium shortage affects the availability of straight-chromium stainless steels.