FORGED TiAl COMPONENTS, AND METHOD FOR PRODUCING SAME
    3.
    发明申请
    FORGED TiAl COMPONENTS, AND METHOD FOR PRODUCING SAME 审中-公开
    锻造TiAl组分及其制造方法

    公开(公告)号:US20140202601A1

    公开(公告)日:2014-07-24

    申请号:US14237929

    申请日:2012-08-09

    IPC分类号: C22F1/18 C22C14/00

    摘要: The present invention relates to a method for producing forged components of a TiAl alloy, in particular turbine blades, wherein the components are forged and undergo a two-stage heat treatment after the forging process, the first stage of the heat treatment comprising a recrystallization annealing process for 50 to 100 minutes at a temperature below the γ/α transition temperature, and the second stage of the heat treatment comprising a stabilization annealing process in the temperature range of from 800° C. to 950° C. for 5 to 7 hrs, and the cooling rate during the first heat treatment stage being greater than or equal to 3° C./sec, in the temperature range between 1300° C. to 900° C.

    摘要翻译: 本发明涉及一种用于生产TiAl合金,特别是涡轮叶片的锻造部件的方法,其中锻件在锻造之后被锻造并进行两级热处理,第一阶段的热处理包括再结晶退火 在低于γ/α转变温度的温度下处理50至100分钟,第二阶段的热处理包括在800℃至950℃的温度范围内的稳定退火工艺5至7小时 在1300℃〜900℃的温度范围内,第一热处理阶段的冷却速度大于或等于3℃/秒。