Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations
It is hard to improve the oxidation resistance property of single-crystal (SC) Ni-based superalloys except for alloying design since monocrystalline lacks defects such as grain boundaries that are beneficial for antioxidant elemental diffusion. This work indicates that dislocations in SC superalloys...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425000705 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841527993550241792 |
|---|---|
| author | Boxuan Du Yi Ru Jiao Wen Xuetao Li Yang Cao Yunpeng Hu Fan Yang Yanling Pei Shusuo Li Shengkai Gong |
| author_facet | Boxuan Du Yi Ru Jiao Wen Xuetao Li Yang Cao Yunpeng Hu Fan Yang Yanling Pei Shusuo Li Shengkai Gong |
| author_sort | Boxuan Du |
| collection | DOAJ |
| description | It is hard to improve the oxidation resistance property of single-crystal (SC) Ni-based superalloys except for alloying design since monocrystalline lacks defects such as grain boundaries that are beneficial for antioxidant elemental diffusion. This work indicates that dislocations in SC superalloys have a beneficial effect on oxidation resistance. These dislocations are formed via high-temperature aging. Taking advantage of such dislocations, the sample aged exhibited an extremely low oxidation rate, and a protective α-Al2O3 layer formed rapidly at the surface instead of multilayer oxides without the aid of aging dislocations, determining the change in oxidation mechanism. The atomic-scale investigation revealed that the Al had a higher activity in aged specimens, and the dislocation from aging treatment enabled the pipe diffusion effect. Based on our results, a new route to improving oxidation resistance of SC superalloys is proposed as skilled designing of dislocations acting as Al-diffusion pipes. These findings give a new insight into recently popular “crystal defect engineering” of alloys and provide guidelines for oxidation resistance improvement of superalloy and other alloys. |
| format | Article |
| id | doaj-art-7b6661c3aff54b8e8bd3b1bb321c9f54 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-7b6661c3aff54b8e8bd3b1bb321c9f542025-01-15T04:11:42ZengElsevierJournal of Materials Research and Technology2238-78542025-03-0135504513Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocationsBoxuan Du0Yi Ru1Jiao Wen2Xuetao Li3Yang Cao4Yunpeng Hu5Fan Yang6Yanling Pei7Shusuo Li8Shengkai Gong9School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing, 100191, China; Tianmushan Laboratory, Yuhang District, Hangzhou City, Zhejiang Province, 311115, China; Suzhou Laboratory, No. 388, Ruoshui Street, SIP, Jiangsu, 215123, China; Corresponding author. School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.School of Materials Science and Engineering, Beihang University, Beijing, 100191, China; Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China; Corresponding author. School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.AECC Guiyang Engine Research Design Institute, Guiyang, 550081, China; Corresponding author. School of Materials Science and Engineering, Beihang University, Beijing, 100191, China.School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaInstitute of Materials Intelligent Technology, Liaoning Academy of Materials, Shenyang, 110004, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaIt is hard to improve the oxidation resistance property of single-crystal (SC) Ni-based superalloys except for alloying design since monocrystalline lacks defects such as grain boundaries that are beneficial for antioxidant elemental diffusion. This work indicates that dislocations in SC superalloys have a beneficial effect on oxidation resistance. These dislocations are formed via high-temperature aging. Taking advantage of such dislocations, the sample aged exhibited an extremely low oxidation rate, and a protective α-Al2O3 layer formed rapidly at the surface instead of multilayer oxides without the aid of aging dislocations, determining the change in oxidation mechanism. The atomic-scale investigation revealed that the Al had a higher activity in aged specimens, and the dislocation from aging treatment enabled the pipe diffusion effect. Based on our results, a new route to improving oxidation resistance of SC superalloys is proposed as skilled designing of dislocations acting as Al-diffusion pipes. These findings give a new insight into recently popular “crystal defect engineering” of alloys and provide guidelines for oxidation resistance improvement of superalloy and other alloys.http://www.sciencedirect.com/science/article/pii/S2238785425000705Single crystal superalloyOxidation resistanceheat treatmentDislocationPipe diffusion |
| spellingShingle | Boxuan Du Yi Ru Jiao Wen Xuetao Li Yang Cao Yunpeng Hu Fan Yang Yanling Pei Shusuo Li Shengkai Gong Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations Journal of Materials Research and Technology Single crystal superalloy Oxidation resistance heat treatment Dislocation Pipe diffusion |
| title | Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations |
| title_full | Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations |
| title_fullStr | Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations |
| title_full_unstemmed | Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations |
| title_short | Improving oxidation resistance property of single-crystal Ni-based superalloy via utilizing high temperature aging-induced dislocations |
| title_sort | improving oxidation resistance property of single crystal ni based superalloy via utilizing high temperature aging induced dislocations |
| topic | Single crystal superalloy Oxidation resistance heat treatment Dislocation Pipe diffusion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000705 |
| work_keys_str_mv | AT boxuandu improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT yiru improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT jiaowen improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT xuetaoli improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT yangcao improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT yunpenghu improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT fanyang improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT yanlingpei improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT shusuoli improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations AT shengkaigong improvingoxidationresistancepropertyofsinglecrystalnibasedsuperalloyviautilizinghightemperatureaginginduceddislocations |