Accession Number : AD0838371

Title :   THE DEFORMATION RESISTANCE OF HIGHLY HEAT-RESISTANT NICKEL ALLOYS (DIE FORMANDERUNGSFESTIGKEIT HOCHWARMFESTER NICKELLEGIERUNGEN),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : Koegel, Hermann ; Fritzsch, Gunter ; Siegel, Roland

Report Date : 26 SEP 1967

Pagination or Media Count : 14

Abstract : The deformation strength of four high-temperature nickel alloys was determined at various elevated temperatures with the aid of hot-compression tests. The results were presented in the form of flow curves. In addition, six photomicrographs, illustrating the grain structure of the various test samples, were presented and discussed. The test temperatures varied between 1030 and 1180C and the compression rates varied between 0.15 and 100 mm./second. It was noted that the formation rate of coarse grains in the microstructure of the samples increased with increasing degrees of compression. No comparable data is available in the literature for the dimensional stability of high-temperature nickel alloys. (Author)

Descriptors :   (*NICKEL ALLOYS, HOT WORKING), TEST METHODS, HEAT RESISTANT ALLOYS, HEAT RESISTANT METALS, DEFORMATION, GRAIN STRUCTURES(METALLURGY), TENSILE PROPERTIES, FORGING, FORGE PRESSES, EAST GERMANY.

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE