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    • 2. 发明授权
    • Damage tolerant anisotropic nickel base superalloy articles
    • 耐磨各向异性镍基超级合金制品
    • US5900084A
    • 1999-05-04
    • US583379
    • 1996-01-05
    • Daniel P. DeLucaHoward B. JonesBradford A. Cowles
    • Daniel P. DeLucaHoward B. JonesBradford A. Cowles
    • C22C19/05C22F1/10C21D9/00
    • C22F1/10C22C19/056C22C19/057
    • Columnar grain and single crystal nickel base superalloys are heat treated to provide a damage tolerant microstructure. The microstructure contains large, irregularly shaped "barrier" .gamma.' particles interspersed in an ordered array of smaller cuboidal .gamma.' particles in a .gamma. phase matrix. The barrier particles interrupt the progression of cracks through the microstructure. The invention process includes solutioning the .gamma.' phase, cooling slowly to a temperature about 50.degree. F. to 150.degree. F. (28.degree. C. to 83.degree. C.) below the .gamma.' solvus temperature, further cooling at a rate of at least about 100.degree. F. (56.degree. C.) per minute to less than 1000.degree. F. (538.degree. C.), reheating to 1975.degree. F. to 2000.degree. F. (1079.degree. C. to 1093.degree. C.) and holding for about four to six hours, cooling at 100.degree. F. (56.degree. C.) per minute to less than 1000.degree. F. (538.degree. C.), and heating to 1600.degree. F..+-.25.degree. F. (871.degree. C..+-.14.degree. C.) and holding for 24 hours to 32 hours.
    • 柱状晶粒和单晶镍基超级合金被热处理以提供耐损伤微观结构。 微结构包含大的不规则形状的“阻挡”γ'粒子,散布在伽马相位矩阵中的较小立方γ'粒子的有序阵列中。 阻挡粒子阻止裂纹进入微结构。 本发明方法包括将γ相溶解,缓慢冷却至低于γ'溶剂温度的约50°F至150°F(28℃至83℃)的温度,以 至少约100°F(56℃)/分钟至小于1000°F(538℃),再加热至1975°F至2000°F(1079℃至1093℃) 并保持约4-6小时,每分钟在100°F(56℃)下冷却至小于1000°F(538℃),并加热至1600°F。+ / - 25°F (871℃±14℃)并保持24小时至32小时。
    • 3. 发明授权
    • Damage tolerant anisotropic nickel base superalloy articles
    • 耐磨各向异性镍基超级合金制品
    • US5605584A
    • 1997-02-25
    • US380231
    • 1995-01-30
    • Daniel P. DeLucaHoward B. JonesBradford A. Cowles
    • Daniel P. DeLucaHoward B. JonesBradford A. Cowles
    • C22C19/05C22F1/10
    • C22F1/10C22C19/056C22C19/057
    • Columnar grain and single crystal nickel base superalloys are heat treated to provide a damage tolerant microstructure. The microstructure contains large, irregularly shaped "barrier" .gamma.' particles interspersed in an ordered array of smaller cuboidal .gamma.' particles in a .gamma. phase matrix. The barrier particles interrupt the progression of cracks through the microstructure. The invention process includes solutioning the .gamma.' phase, cooling slowly to a temperature about 50.degree. F. to 150.degree. F. (28.degree. C. to 83.degree. C.) below the .gamma.' solvus temperature, further cooling at a rate of at least about 100.degree. F. (56.degree. C.) per minute to less than 1000.degree. F. (538.degree. C.), reheating to 1975.degree. F. to 2000.degree. F. (1079.degree. C. to 1093.degree. C.) and holding for about four to six hours, cooling at 100.degree. F. (56.degree. C.) per minute to less than 1000.degree. F. (538.degree. C.), and heating to 1600.degree. F. .+-.25.degree. F. (871.degree. C. .+-.14.degree. C.) and holding for 24 hours to 32 hours.
    • 柱状晶粒和单晶镍基超级合金被热处理以提供耐损伤微观结构。 微结构包含大的不规则形状的“阻挡”γ'粒子,散布在伽马相位矩阵中的较小立方γ'粒子的有序阵列中。 阻挡粒子阻止裂纹进入微结构。 本发明方法包括将γ相溶解,缓慢冷却至低于γ'溶剂温度的约50°F至150°F(28℃至83℃)的温度,以 至少约100°F(56℃)/分钟至小于1000°F(538℃),再加热至1975°F至2000°F(1079℃至1093℃) 并保持约4-6小时,每分钟在100°F(56℃)下冷却至小于1000°F(538℃),并加热至1600°F。+/- 25°F (871℃±14℃)并保持24小时至32小时。