low thermal expansion superalloys
... 铁基高温合金;iron-base super alloy 低膨胀高温合金;low expansion super alloy 镍基变形高温合金;Ni-base wrought superalloy ...
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本文研究了低膨胀高温合金GH907、GH909铸态组织中偏析的性质，偏析对合金组织的影响，以及消除偏析的方法。
This paper introduces the casting precipitation properties, their effects on the alloy microstructure and the methods to eliminate the precipitation of the Low-expansion superalloy GH909. and GH907.
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