Accession Number : ADD011944

Title :   Method for Refining Microstructures of Prealloyed Powder Metallurgy Titanium Articles.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Eylon,D ; Froes,F H

Report Date : 13 Aug 1985

Pagination or Media Count : 4

Abstract : This patent discloses a method for improving the microstructure of an article made by powder metallurgy of prealloyed titanium powder which comprises beta-solution heat treating the article at a temperature approximately equal to the beta-transus of the equivalent alloy, rapidly cooling the article, annealing the article at a temperature about 10 to 20% below the beta-transus and air cooling to room temperature. The resulting article has a fine alpha plate structure in a matrix of discontinuous beta phase.

Descriptors :   *PATENTS, *POWDER METALLURGY, *TITANIUM, *TITANIUM ALLOYS, *MICROSTRUCTURE, *REFINING, METHODOLOGY, AIR COOLED, ANNEALING, ROOM TEMPERATURE, COLD WORKING, HOT WORKING, ISOSTATIC PRESSING, MECHANICAL PROPERTIES, MATERIAL FORMING, HEAT TREATMENT, AGING(MATERIALS)

Subject Categories : Properties of Metals and Alloys
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE