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    Corrosion-resistant aluminum-copper-magnesium-zinc powder metallurgy alloys
    2.
    发明授权
    Corrosion-resistant aluminum-copper-magnesium-zinc powder metallurgy alloys 失效
    耐腐蚀铝 - 铜 - 镁合金粉末冶金合金

    公开(公告)号：US3563814A

    公开(公告)日：1971-02-16

    申请号：US3563814D

    申请日：1968-04-08

    Applicant: ALUMINUM CO OF AMERICA

    Inventor： LYLE JOHN P JR ,  TOWNER RAYMOND J ,  HAARR ALLAN P

    IPC: C22C1/04 ,  C22C21/10 ,  C22F1/053 ,  C22C21/00 ,  C22F1/04

    CPC classification number: C22C1/0416 ,  C22C21/10 ,  C22F1/053

    Abstract: ALUMINUM BASE POWDER METALLURGY ALLOY ARTICLE HAVING AN IMPROVED COMBINATION OF HIGH TRANSVERSE YIELD STRENGTH AND STRESS CORROSION CRACKING RESISTANCE. THE ALLOY CONTAINS THE BASIC PRECIPITATION HARDENING ELEMENTS ZINC, MANGSIUM AND COPPER. IT MAY ADDITIONALLY CONTAIN COBALT OR MANGANESE. THE ALLOY IS PREPARED BY ATOMIZATION OF A MELT OF THE ELEMENTS HOT WORKING, SOLUTION HEAT TREATING, QUENCHING AND TWO-STAGE ARTIFICIAL AGING. COMPONENTS OF THE ALLOY IN PERCENT BY WEIGHT ARE, IN ADDITION TO THE ALUMINUM, 5 TO 13 ZINC, 1.75 TO 6 MANGNESIUM, 0 TO 2.5 COPPER, AND UP TO ABOUT TO COBALT OR MANGANESE. UP TO 0.75 BY WEIGHT CHROMIUM AND UP TO 0.25 BY WEIGHT ZIRCONIUM MAY BE PRESENT WHEN COBALT OR MANGANESE IS ALSO PRESENT.

    Aluminum-copper-magnesium-zinc powder metallurgy alloys
    9.
    发明授权
    Aluminum-copper-magnesium-zinc powder metallurgy alloys 失效
    铝合金 - 镁合金粉末冶金合金

    公开(公告)号：US3637441A

    公开(公告)日：1972-01-25

    申请号：US3637441D

    申请日：1970-03-02

    Applicant: ALUMINUM CO OF AMERICA

    Inventor： LYLE JOHN P JR ,  TOWNER RAYMOND J

    IPC: C22C1/04 ,  C22C21/10 ,  C22C21/00 ,  C22F1/04

    CPC classification number: C22C21/10 ,  C22C1/0416

    Abstract: Aluminum base powder metallurgy alloy article having an improved combination of high-transverse yield strength and high-stress corrosion cracking resistance. The alloy contains the basic precipitation hardening elements zinc, magnesium and copper plus dispersion strengthening elements iron and nickel. It may additionally contain chromium and/or manganese. The alloy is prepared by atomization of a melt of the elements, hot-working, solution heat treating, quenching and artificial aging. Components of the alloy in percent by weight are, in addition to the aluminum, from at least 6.5 to 13 zinc, 1.75 to 6 magnesium, 0.25 to 2.5 copper, 0.75 to 4.25 iron and 0.75 to 6 nickel, up to 3 manganese and up to 0.75 chromium. The iron to nickel ratio is from 0.2:1 to 2.0:1.

    Abstract translation: 铝基粉末冶金合金制品具有改进的高横向屈服强度和高应力耐腐蚀开裂性的组合。 该合金含有碱性析出硬化元素锌，镁和铜加分散强化元素铁和镍。 它还可以含有铬和/或锰。 该合金通过元素熔体雾化，热加工，固溶热处理，淬火和人工老化来制备。 除了铝之外，合金的重量百分比除了铝之外还含有至少6.5至13个锌，1.75至6个镁，0.25至2.5个铜，0.75至4.25个铁和0.75至6个镍，最多3个锰及以上 至0.75铬。 铁与镍的比例为0.2:1至2.0:1。

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