Accession Number : AD0846971

Title :   Thermomechanical Strengthening of F.C.C. Metals.

Descriptive Note : Final technical rept. 1 Jan 67-31 Dec 68,

Corporate Author : KENTUCKY UNIV LEXINGTON DEPT OF METALLURGICAL ENGINEERING AND MATERIALS SCIEN CE

Personal Author(s) : Morris, James G.

Report Date : NOV 1968

Pagination or Media Count : 97

Abstract : Aluminum alloys are structurally unstable from both a thermal and a stress activated process point of view. The strain induced structural instability is significant as shown by deformation pole figure work and work hardening curves. This strain induced structural instability can be described as a change in disposition of solute with change in the degree of strain. This effect is most significant in alloys of aluminum and is generally overlooked. Careful control of the structural instability of aluminum alloys allows significant increases in mechanical properties to be achieved. Alloying additions of appropriate solutes also affect the degree of strain induced dispositional change that occurs in aluminum alloys and allow significant increases in the work hardening characteristics of these alloys to be obtained. (Author)

Descriptors :   (*ALUMINUM ALLOYS, HARDENING), COPPER ALLOYS, MAGNESIUM ALLOYS, MANGANESE ALLOYS, SILVER ALLOYS, DEFORMATION, STABILITY, ANNEALING, RECRYSTALLIZATION, REACTION KINETICS, STRUCTURAL PROPERTIES, STRAIN(MECHANICS).

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE