Effects of annealing on cold-worked Zr/sub 3/Al

Journal Article · Mon Nov 01 04:00:00 EST 1976 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02817896· OSTI ID:7339150

Gagne, M ^[1]; Schulson, E M

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1. Univ. of Sherbrooke, Que.

A study has been made of the effects of isothermal annealing on the hardness, the tensile properties and the microstructure of cold-worked Zr/sub 3/Al (L1/sub 2/ type). For material rolled to a true strain of 0.29, complete recrystallization accounts for a recovery of hardness of 65 to 70 percent and for a reduction in yield strength of about 50 percent, independent of temperature. Grain growth accounts for further changes. The yield strength sigma/sub y/ obeys the relationship sigma/sub y/ = sigma/sub 0/ + k/sub y/(anti d)/sup -1/2/ where sigma/sub 0/ and k/sub y/ are constants and anti d is the average grain diameter of the fully recrystallized matrix. Recrystallization and grain growth kinetics, respectively, satisfy the expressions f = 1 -- exp(--kt/sup n/) and anti d = Kt/sup m/ where f is the fraction recrystallized, t is time, k and K are parameters which increase with increasing temperature and m and n are constants. 13 figures (auth)

• OSTI ID: 7339150
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 7:11; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
ANNEALING
COLD WORKING
CRYSTAL STRUCTURE
FABRICATION
GRAIN GROWTH
HARDNESS
HEAT TREATMENTS
INTERMETALLIC COMPOUNDS
KINETICS
MATERIALS WORKING
MECHANICAL PROPERTIES
MICROSTRUCTURE
RECRYSTALLIZATION
TENSILE PROPERTIES
YIELD STRENGTH
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS