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Effect of precipitation aging temperatures on rejuvenation heat treated microstructures, hardness and gamma phase stability in Udimet-500 |
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| รหัสดีโอไอ | |
| Creator | 1. Chanon Niemkong 2. Sureerat Polsilapa 3. Panyawat Wangyao |
| Title | Effect of precipitation aging temperatures on rejuvenation heat treated microstructures, hardness and gamma phase stability in Udimet-500 |
| Publisher | Metallurgy and Materials Science Research Insititute Chulalongkorn University |
| Publication Year | 2559 |
| Journal Title | Jounal of Metals Materials and Minerials |
| Journal Vol. | 26 |
| Journal No. | 1 |
| Page no. | 1-7 |
| ISSN | 0857-6149 |
| Abstract | This research has studied the effect of precipitation aging temperatures on size and area density of?' particles of the reheat treated microstructures incast nickel basesuperalloy, grade Udimet-500. All specimens were performed the same solutioning treatment at temperature of 1,150C for 4 hours following with various precipitation aging temperatures of 760, 780, 800 and 820C for 16 hours. Furthermore, these reheat treated specimens were also performed long-term heating at temperatures of 900C and 1000C for 200 hours to evaluate ?'-phase stability. Finally, hardness measurements were also carried out. Form all obtained results, it was found that the standard precipitation aging temperature of 760C for 16 hours provided the most phase stability after long-term tests as well as the maximum hardness. |
