Effect of precipitation aging temperatures on rejuvenation heat treated microstructures, hardness and γ' phase stability in Udimet-500
Abstract
This research has studied the effect of precipitation aging temperatures on size and area density of γ' particles of the reheat treated microstructures incast nickel basesuperalloy, grade Udimet-500. All specimens were performed the same solutioning treatment at temperature of 1,150ºC for 4 hours following with various precipitation aging temperatures of 760, 780, 800 and 820ºC for 16 hours. Furthermore, these reheat treated specimens were also performed long-term heating at temperatures of 900ºC and 1000ºC for 200 hours to evaluate γ'-phase stability. Finally, hardness measurements were also carried out. Form all obtained results, it was found that the standard precipitation aging temperature of 760ºC for 16 hours provided the most phase stability after long-term tests as well as the maximum hardness.Downloads
References
Zrnik,J.,Wangyao,P.,Vrchovinsky, V., Hornak,P. and Mamuzic,I.(1997). Metallurgija,36 : 225-228.
Zrnik,J., Semenak,J.,Vrchovinsky, V. and Wangyao, P. (2001).Mat. Sci. Eng. A-Struct. 319 : 637- 642.
Kvackaj, T.,Zrnik,J.,Vrchovinský, V. and Wangyao, P. (2002).High Temp. Mater. Process. 21(6) : 351-359.
Kvackaj, T., Zrnik, J., Vrchovinský, V. and Wangyao, P. (2003). High Temp. Mater.Process. 22(1) : 57-62.
Lothongkum, G., Khuanleang, V., Hromkrajai, W. and Wangyao, P. (2006). High Temp. Mater. Process. 25(4) : 175-185.
Wangyao, P., Krongtong, V., Panich, N., Chuankrerkkul,, N. and Lothongkum, G. (2007). High Temp. Mater. Process. 26(2) : 151-160.
Wangyao, P., Zrnik, J., Mamuzic, I., Polsilapa, S. and Klaijumrang, S.(2007). Metallurgija. 46 : 195-199.
Wangyao, P.,Kraus, L.,Zrnik,J. and Nemecek, S. (2007). J. Mater. Process. Technol. 192 : 360- 366.
Wangyao, P., Polsilapa, S., Chaishom, P., Zrnik, J., Homkrajai, W. and Panich, N. (2008). High. Temp. Mater.Process.27 : 41-50.
Wangyao, P., Suvanchai, P., Chuankrerkkul, N., Krongtong, V., Thueploy, A., Homkrajai, W. (2010). High Temp. Mater. Process. 29(4) : 277-286.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.