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    SKIN MELTING
    5.
    发明专利
    SKIN MELTING 未知

    公开(公告)号：CA1100392A

    公开(公告)日：1981-05-05

    申请号：CA298317

    申请日：1978-03-02

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BANAS CONRAD M ,  BREINAN EDWARD M ,  KEAR BERNARD H ,  GIAMEI ANTHONY

    IPC: C21D1/34

    Abstract: SKIN MELTING A surface treatment for a class of metallic articles is described. The treatment involves the melting of a thin surface layer of the article by a concentrated energy source, within a narrow set of parameters. The melting step is performed in a manner which maximizes the temperature gradient between the melted and unmelted portion of the article, consequently, cooling and solidification upon the removal of the energy source is extremely rapid and can produce unique microstructures. The preferred energy source is a continuous wave laser, and in the preferred embodiment, a flowing inert gas cover is used to minimize melt contamination and plasma formation. The technique may be used to produce amorphous surface layers in a specific class of eutectic alloys. In another class of alloys, based on the transition metals and containing precipitates rich in one or more metalloids, uniquely fine microstructures may be produced. 2032A

    HEAT TREATED SINGLE CRYSTAL ARTICLES AND PROCESS.
    6.
    发明公开
    HEAT TREATED SINGLE CRYSTAL ARTICLES AND PROCESS. 失效
    WÄRMEBEHANDELTEREINZELKRISTALLARTIKEL SOWIE VERFAHREN。

    公开(公告)号：EP0057696A4

    公开(公告)日：1982-12-09

    申请号：EP81902224

    申请日：1981-08-10

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

    IPC: C30B1/02 ,  C22C1/02 ,  C22C19/00 ,  C22C19/03 ,  C22F20060101 ,  C22F1/10 ,  C30B11/00 ,  C30B21/02 ,  C30B29/52

    CPC classification number: C22F1/10 ,  C22C19/007 ,  C30B11/00 ,  C30B29/52

    Abstract: An alloy composition coasting scheme and specific heat treatment process are described for the production of directionally solidified single crystal articles which have exceptional properties. The alloy is based on the Ni-Al-Mo system, preferably with additions of Ta. The process for producing the article inclused directional solidification at a high rate to produce a fine dendritic microstructure. A combined homogenizing and solution treatment is performed to provide a unique chemically homogeneous single phase microstructure. This homogeneous article is rapidly quenched and then aged at an intermediate temperature to develop a controlled uniform distribution of fine gamma prime phase particles.

    Abstract translation: 描述了用于生产具有特殊性能的定向凝固单晶制品的合金组成铸造方案和特定热处理方法。 该合金基于Ni-Al-Mo系统，优选添加Ta。 制造该制品的方法包括高速定向凝固以产生精细的树枝状微结构。 进行组合的均化和溶液处理以提供独特的化学均匀的单相微观结构。 这种均匀的制品被迅速淬火，然后在中间温度下老化，以形成精细γ相颗粒的受控均匀分布。

    HEAT TREATED SINGLE CRYSTAL ARTICLES AND PROCESS
    8.
    发明专利
    HEAT TREATED SINGLE CRYSTAL ARTICLES AND PROCESS 未知

    公开(公告)号：CA1184097A

    公开(公告)日：1985-03-19

    申请号：CA386155

    申请日：1981-09-17

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

    IPC: C22F1/10

    Abstract: An alloy composition casting scheme and specific heat treatment process are described for the production of directionally solidified single crystal articles which have exceptional properties. The alloy is based on the Ni-Al-Mo system, preferably with additions of Ta. The process for producing the article inclused directional solidification at a high rate to produce a fine dendritic microstructure. A combined homogenizing and solution treatment is performed to provide a unique chemically homogeneous single phase microstructure. This homogeneous article is rapidly quenched and then aged at an intermediate temperature to develop a controlled uniform distribution of fine gamma prime phase particles.

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