THE INFLUENCE OF Zr ON STRUCTURAL, MECHANICAL, AND TECHNOLOGICAL CHARACTERISTICS OF THE 7075 ALLOY

Journal Article · Sat Dec 31 23:00:00 EST 1960 · Alluminio (Italy)

OSTI ID:4797909

Panseri, C; Di Russo, E

The introduction of 0.15 to 0.20% zirconium in aluminum alloy type 7075 increases the degree of critical cold working, opposes efficaciously the recrystallization of extruded or forged pieces at elevated heat treating, and increases the mechanical resistance and the fatigue limit of the alloy. Zirconium does not alter the plasticity of the alloy in the hot condition and does not influence the variations of mechanical characteristics which are caused by varying age-hardening conditions. Its antirecrystallizing action consents to reduce the chromium content, which, when superior to 0.2%, can stimulate dangerous segregations of CrAl/sub 7/. (auth)

• Research Organization: Istituto Sperimentale dei Metalli Leggeri, Milan
• NSA Number: NSA-16-009222
• OSTI ID: 4797909
• Journal Information: Alluminio (Italy), Journal Name: Alluminio (Italy) Vol. Vol: 30; ISSN ALLUA
• Country of Publication: Country unknown/Code not available
• Language: Italian

Related Subjects

ADDITIVES
ALUMINUM ALLOYS
CHROMIUM ALLOYS
COLD WORKING
DISTRIBUTION
EXTRUSION
FORGING
HARDNESS
HOT WORKING
IMPURITIES
INTERMETALLIC COMPOUNDS
MECHANICAL PROPERTIES
METALS, CERAMICS, AND OTHER MATERIALS
QUANTITY RATIO
RECRYSTALLIZATION
SEGREGATION
TENSILE PROPERTIES
ZIRCONIUM ALLOYS