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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 AuthorZhang, Shi-hong(shzhang@imr.ac.cn)
2020-06-01
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN1059-9495
Volume29Issue:6Pages:3852-3857
AbstractThe 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.
KeywordDelta Process Inconel 718 lamellar delta phase spheroidization
Funding OrganizationNational Natural Science Foundation of China ; Sino-Belarus Inter-Governmental Science and Technology Cooperation project ; Chinese National Key Research and Development Plan
DOI10.1007/s11665-020-04909-4
Indexed BySCI
Language英语
Funding ProjectNational 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 AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000542083100001
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139554
Collection中国科学院金属研究所
Corresponding AuthorZhang, Shi-hong
Affiliation1.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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