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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1989, Vol. 10 ›› Issue (9): 517-520.
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Zang Xinshi, Guo Shuping, Li Xiaoxin
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The phase transformation behavior and microstructural stability of P/M superalloy FGH95 in the long time stress ageing have been studied. It has been found that the hot-isostatically pressed FGH 95 alloy, which is in solution and ageing state and is subsequently subjected to long time stress ageing at 650℃ and lower temperatures consists of γ, γ',MC, M23C6 and M3B2 phases. A certain amount of secondary γ' coarsened, while some dissolved during the stress ageing. The γ' and minor phases contents showed a tendency to increase and grain boundary precipitation also increase as the stress ageing time increased. This alloy exhibits a relatively good structural stability.
Key words: hot-isostatical press (HIP), phase transformation, stress ageing
Zang Xinshi;Guo Shuping;Li Xiaoxin. THE STRUCTURE AND PHASE ANALYSIS OF P/M SUPERALLOY FGH 95 DURING STRESS AGEING[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1989, 10(9): 517-520.
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