发明申请
US20090000706A1 METHOD OF CONTROLLING AND REFINING FINAL GRAIN SIZE IN SUPERSOLVUS HEAT TREATED NICKEL-BASE SUPERALLOYS 审中-公开
超级热处理镍基超级合金中控制和精制最终粒度的方法

METHOD OF CONTROLLING AND REFINING FINAL GRAIN SIZE IN SUPERSOLVUS HEAT TREATED NICKEL-BASE SUPERALLOYS
摘要:
A method of forming a component from a gamma prime precipitation-strengthened nickel-base superalloy. The method entails formulating the superalloy to have a sufficiently high carbon content and forging the superalloy at sufficiently high local strain rates so that, following a supersolvus heat treatment, the component is characterized by a fine and substantially uniform grain size distribution, preferably finer than ASTM 7 and more preferably in a range of about ASTM 8 to 10.
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