| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 814773 | Rare Metal Materials and Engineering | 2014 | 5 Pages |
Abstract
The effects of the solution and aging treatment on the microstructure, the tensile properties at room-temperature and 650 °C and the stress rupture of GH4169 superalloy were investigated. The results show that after solution at 980 °C and aging at 720 °C plus 620 °C, both the yield strength and ultimate strength of the superalloy at room-temperature and 650 °C are highest; after solution at 960 °C and aging at 720 °C plus 620 °C, the stress rupture life of the superalloy tested at 650 °C and 725 MPa is the longest; the solution treatment can adjust the amount of δ phase, primary strengthening γ″ phase precipitates upon aging at 720 °C, while assistant strengthening γ′ phase precipitates at 620 °C.
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