Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1996-12-18
1999-04-27
Wyszomierski, George
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148700, 148417, 148439, C22F 104
Patent
active
058977201
ABSTRACT:
A product comprising an aluminum base alloy including about 3.8 wt. % copper, about 1.2 wt. % magnesium, about 0.3 to 0.6 wt. % manganese, not more than about 0.15 wt. % silicon, not more than about 0.12 wt. % iron, not more than about 0.1 wt. % titanium, the remainder substantially aluminum, incidental elements and impurities, the product having at least 5% improvement over 2024 alloy in fracture toughness, fatigue crack growth rate, corrosion resistance, and formability properties.
REFERENCES:
patent: 3847681 (1974-11-01), Waldman et al.
patent: 4336075 (1982-06-01), Quist et al.
patent: 4816087 (1989-03-01), Cho
patent: 5213639 (1993-05-01), Colvin et al.
patent: 5273594 (1993-12-01), Cassada
Staley, J.T., "Fracture Toughness and Microstructure of High Strength Aluminum Alloys" May 23, 1974 (pp. 1-11, Figs. 1-35, and Tables 1-2).
Alcoa Company of America, "Effects of Microstructure on Fatique Crack Growth High-Strength Aluminum Alloys" Oct. 1976 (pp. 1-255).
Technical Report AFML-TR-247, vol. II Sep., 1974.
Thompson et al., "Special Processing of Al-Cu-Mg Alloys", Abstract 651872, MA No. 79-560035 (1979).
Sugamata et al., Effect of Thermomechanical Treatment on Mechanical Properties of 2024 Aluminum Alloy, Abstract 898068, MA No. 84-312849 (1983).
Erhardt et al., Technical Report AFML-TR-69-85 The Role of Structure, Low Strain Rates, High Strain and Temperature on the Low Cycle Fatigue Behavios Of 2024-T4 Aluminum Alloy, 1969, pp. 1-38.
McEvily, Jr. et al., Report "Effect of Thermal-Mechanical Processing on the Fatigue and Stress-Corrosion Properties of an Al/Zn-Mg Alloy", Transactions of the ASM, vol. 60, 1967, pp. 661-671.
Reynolds Report AD-770-350 "Program to Improve the Facture Toughness and Fatigue Resistance of Aluminum Sheet and Plate for Aircraft Applications", Sep., 1973, pp. 1-105.
Staley et al., "Improving Fatigue Resistance of Aluminum Aircraft Alloys", Communication from Alcoa Technical Center presented at Western Tool Expo and Metal Congress, Los Angeles, Mar. 1977, pp. 667-669.
Thompson et al., "Thermomechanical Processing of Aluminum Alloys", The Metallurgical Society, Oct. 18, 1978, pp. 74-83.
Titchener et al., "The Effect of Thermomechanical Treatment on the Fatigue Behaviour of an Al-Mg-Si-Mn Alloy", Department of Chemical and Materails Engineering, University of Auckland, Aug. 1973, pp. 432-436.
Waldman et al., "The Effect of Ingot Processing Treatments on the Grain Size and Properties of Al Alloy 7075", Metallurgical Transactions, vol. 5, Mar. 1974.
Haynes Gerald D.
Kaiser Aluminum & Chemical Corporation
McGarrigle Philip L.
Wyszomierski George
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