| Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing | |
| Gan, Hong-yan1,2; Cheng, Ming1; Guo, Zhen-xing3; Tai, Qing-an3; Kozhevnikova, Grazhina4; Song, Hong-wu1; Zhang, Shi-hong1 | |
| Corresponding Author | Zhang, Shi-hong(shzhang@imr.ac.cn) |
| 2020-06-01 | |
| Source Publication | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| ISSN | 1059-9495 |
| Volume | 29Issue:6Pages:3852-3857 |
| Abstract | The morphology evolution of lamellar delta phase in Inconel 718 during Delta Processing was characterized by scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy. A spheroidization mechanism is proposed for transformation of the lamellar delta phase. The results showed that lamellar delta phase hindered the movement of dislocations, which led to a dislocation aggregation zone around the fracture location of the delta phase. Strain in the region thus increased, which promoted the occurrence of dynamic recrystallization and fracture of the lamellar delta phase. A diffusion channel for Nb atoms was simultaneously provided by the high-density dislocations, which led to dissolution and reduction in the amount of delta phase. Under the combined action of deformation, fracture, and dissolution, the lamellar delta phase gradually transformed into granular short rods and spheroids. |
| Keyword | Delta Process Inconel 718 lamellar delta phase spheroidization |
| Funding Organization | National Natural Science Foundation of China ; Sino-Belarus Inter-Governmental Science and Technology Cooperation project ; Chinese National Key Research and Development Plan |
| DOI | 10.1007/s11665-020-04909-4 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51505240] ; Sino-Belarus Inter-Governmental Science and Technology Cooperation project[CB02-09] ; Chinese National Key Research and Development Plan[SQ2018YFE011170] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000542083100001 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139553 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Shi-hong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.AECC Shenyang Li Ming Aeroengine Grp Co Ltd, Shenyang 110043, Peoples R China 4.Natl Acad Sci Belarus, Phys Tech Inst, Minsk 220141, BELARUS |
| Recommended Citation GB/T 7714 | Gan, Hong-yan,Cheng, Ming,Guo, Zhen-xing,et al. Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2020,29(6):3852-3857. |
| APA | Gan, Hong-yan.,Cheng, Ming.,Guo, Zhen-xing.,Tai, Qing-an.,Kozhevnikova, Grazhina.,...&Zhang, Shi-hong.(2020).Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,29(6),3852-3857. |
| MLA | Gan, Hong-yan,et al."Spheroidization Mechanism of Lamellar delta Phase in Inconel 718 during Delta Processing".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 29.6(2020):3852-3857. |
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