Effect of Phosphorus Additions on the Microstructure and Creep Properties of a Wrought Ni-Base Superalloy
| العنوان: | Effect of Phosphorus Additions on the Microstructure and Creep Properties of a Wrought Ni-Base Superalloy |
|---|---|
| المؤلفون: | Zhuo Liu, Sammy Tin, Linhan Li |
| المصدر: | Metallurgical and Materials Transactions A. 52:2959-2972 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010302 applied physics, Materials science, Metallurgy, 0211 other engineering and technologies, Metals and Alloys, 02 engineering and technology, Condensed Matter Physics, Microstructure, 01 natural sciences, Waspaloy, Carbide, Superalloy, Creep, Mechanics of Materials, 0103 physical sciences, Grain boundary, Crystallite, Ductility (Earth science), 021102 mining & metallurgy |
| الوصف: | A wrought Ni-base superalloy, Waspaloy, with four nominal levels of P additions (0, 0.01, 0.02, and 0.04 wt pct) was studied in order to better understand how P influences the grain boundary microstructures as well as creep resistance. Results from this investigation revealed that P additions promoted the precipitation of M23C6 carbides at grain boundaries. The effect of P additions on the creep properties was assessed by both creep rupture and interrupted creep tests at 816 °C/180 MPa and 650 °C/760 MPa. Changes in the fraction and morphology of the M23C6 carbides at grain boundaries due to P additions were found to result in a notable reduction of the creep ductility when tested at 650 °C/760 MPa where the creep strain was localized along the grain boundaries. However, the additions of P and associated changes in the M23C6 carbides did not affect the creep behavior of samples tested at 816 °C/180 MPa where the creep strain was largely transgranular. This study reveals that P affects the creep resistance of the polycrystalline Ni-base superalloys by accelerating the nucleation and growth kinetics of M23C6 along the grain boundaries. |
| تدمد: | 1543-1940 1073-5623 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::80527d53fefe1ed1ae0e96c0c5688f65 https://doi.org/10.1007/s11661-021-06289-3 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........80527d53fefe1ed1ae0e96c0c5688f65 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15431940 10735623 |
|---|