Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy
Ni-based superalloy Haynes 282 was developed as a gas turbine material for use in the ultra-supercritical (USC) stage of next-generation coal-fired power plants. Temperatures in the USC stage exceed 700°C during operation. Despite the important role of Haynes 282 in increasing the performance of hig...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2048959 |
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| author | Young-Joo Kim Jae-Hyeun Park Yong-Sik Ahn |
| author_facet | Young-Joo Kim Jae-Hyeun Park Yong-Sik Ahn |
| author_sort | Young-Joo Kim |
| collection | DOAJ |
| description | Ni-based superalloy Haynes 282 was developed as a gas turbine material for use in the ultra-supercritical (USC) stage of next-generation coal-fired power plants. Temperatures in the USC stage exceed 700°C during operation. Despite the important role of Haynes 282 in increasing the performance of high-pressure turbines, as a result of its high-temperature capability, there is little information on the microstructure, deformation mechanism, or mechanical properties of the cast condition of this alloy. In this study, we compared the creep properties of Haynes 282 cast alloy with those of its wrought alloy counterpart. The tensile test results of cast and wrought Haynes 282 alloys over the temperature range 25–800°C showed that the cast product exhibited significantly lower strength and ductility compared with the wrought product at all test temperatures. A creep test performed at 750°C showed only a slight difference in the rupture life of the two products. Based on the creep test results, the deformation mechanism is discussed. |
| format | Article |
| id | doaj-art-4ad4ecef9a4f4ee1a5b9f33ae40c37a0 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-4ad4ecef9a4f4ee1a5b9f33ae40c37a02025-02-03T05:58:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/20489592048959Comparison of Creep Properties of Cast and Wrought Haynes 282 SuperalloyYoung-Joo Kim0Jae-Hyeun Park1Yong-Sik Ahn2Department of Materials Science & Engineering, Pukyong National University, Busan, Republic of KoreaResearch Institute of Industrial Science & Technology, Pohang, Republic of KoreaDepartment of Materials Science & Engineering, Pukyong National University, Busan, Republic of KoreaNi-based superalloy Haynes 282 was developed as a gas turbine material for use in the ultra-supercritical (USC) stage of next-generation coal-fired power plants. Temperatures in the USC stage exceed 700°C during operation. Despite the important role of Haynes 282 in increasing the performance of high-pressure turbines, as a result of its high-temperature capability, there is little information on the microstructure, deformation mechanism, or mechanical properties of the cast condition of this alloy. In this study, we compared the creep properties of Haynes 282 cast alloy with those of its wrought alloy counterpart. The tensile test results of cast and wrought Haynes 282 alloys over the temperature range 25–800°C showed that the cast product exhibited significantly lower strength and ductility compared with the wrought product at all test temperatures. A creep test performed at 750°C showed only a slight difference in the rupture life of the two products. Based on the creep test results, the deformation mechanism is discussed.http://dx.doi.org/10.1155/2018/2048959 |
| spellingShingle | Young-Joo Kim Jae-Hyeun Park Yong-Sik Ahn Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy Advances in Materials Science and Engineering |
| title | Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy |
| title_full | Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy |
| title_fullStr | Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy |
| title_full_unstemmed | Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy |
| title_short | Comparison of Creep Properties of Cast and Wrought Haynes 282 Superalloy |
| title_sort | comparison of creep properties of cast and wrought haynes 282 superalloy |
| url | http://dx.doi.org/10.1155/2018/2048959 |
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