Accession Number : ADA130790

Title :   The Effects of Powder Metallurgical Processing and Intermediate Thermal Mechanical Treatment on the Fatigue Properties of High Strength Aluminum Alloys.

Descriptive Note : Final rept. 1 Apr 80-31 Mar 83,

Corporate Author : GEORGIA INST OF TECH ATLANTA FRACTURE AND FATIGUE RESEARCH LAB

Personal Author(s) : Kuo, Victor ; Chang, H ; Starke, E A , Jr

PDF Url : ADA130790

Report Date : Jan 1983

Pagination or Media Count : 27

Abstract : The application of advanced metallurgical processing techniques, e.g., intermediate thermomechanical treatment (ITMT) and powder metallurgy (P/M), has produced a recrystallized X7091 P/M alloy having fine grain and particle structures and weak texture with the best overall mechanical properties compared to those of ingot metallurgical and conventional P/M alloys. The dependence of mechanical properties on grain size and particle distribution has been demonstrated among these alloys. The study of the effect of the last microstructural feature, crystallographic texture, is necessary for further property improvement through texture control.

Descriptors :   *ALUMINUM ALLOYS, *POWDER METALLURGY, *FATIGUE(MECHANICS), *FRACTURE(MECHANICS), *THERMAL PROPERTIES, HEAT TREATMENT, SOLIDIFICATION, QUICK REACTION, THERMOMECHANICS, MECHANICAL PROPERTIES, GRAIN SIZE, PARTICLES, CRYSTALLOGRAPHY, HIGH STRENGTH ALLOYS, PROCESSING

Subject Categories : Properties of Metals and Alloys
      Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE