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    • 23. 发明申请
    • OSCILLATING HEAT TREATMENT METHOD FOR A SUPERALLOY
    • 用于超级合金的振荡热处理方法
    • US20100163142A1
    • 2010-07-01
    • US12226551
    • 2007-03-15
    • Michael OttRolf Wilkenhöner
    • Michael OttRolf Wilkenhöner
    • C22F1/10
    • C22C19/05C21D1/785C21D11/00C22C21/02C22F1/043C22F1/10F05B2230/40
    • Superalloy solidified in a directional manner often cannot be subjected to heat treatment because the heat treatment leads to recrystallization. As a result of the temperature profile during a heat treatment according to the invention which oscillates in the manner of a pendulum, a recrystallization during heat treatment can be avoided because mechanical stresses are reduced thanks to the recurring succession of dissolutions and precipitations of the precipitate. The method can be applied to a Ni-based superalloy with γ-precipitates. After the cyclic heat treatment, the temperature can be adjusted to and maintained at a temperature which is the same as or higher than the complete dissolution temperature. An oscillating movement can also take place above the complete dissolution temperature.
    • 由于热处理导致再结晶,所以以定向方式固化的高温合金经常不能进行热处理。 由于根据本发明的以摆锤的方式振荡的热处理期间的温度曲线的结果,可以避免热处理期间的再结晶,因为由于沉淀物的溶解和沉淀的反复循环而降低了机械应力。 该方法可应用于具有γ析出物的Ni基超级合金。 在循环热处理之后,可以将温度调整到并保持在与完全溶解温度相同或更高的温度。 振荡运动也可能发生在完全溶解温度之上。