The metallurgy of high temperature alloysNickel-base, cobalt-base, and high nickel and chromium iron-base alloys are dissected, and their microstructural and chemical components are assessed with respect to the various functions expected of high temperature structural materials. These functions include the maintenance of mechanical integrity over the strain-rate spectrum from creep resistance through fatigue crack growth resistance, and such alloy stability expectations as microstructural coarsening resistance, phase instability resistance and oxidation and corrosion resistance. Special attention will be given to the perennial conflict and trade-off between strength, ductility and corrosion and oxidation resistance. The newest developments in the constitution of high temperature alloys will also be discussed, including aspects relating to materials conservation.
Tien, J. K. (Columbia Univ. New York, NY, United States)
Purushothaman, S. (Columbia University New York, N.Y., United States)
August 9, 2013
January 1, 1976
Meeting: Symposium on Properties of High Temperature Alloys with Emphasis on Environmental Effects