Correlation between Fracture Morphology and Microstructural Evolution during Long-Term Aging of EK61 Superalloy
Joint Authors
Huang, Jin
Xu, Guohua
Qin, Heyong
Zheng, Lei
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-04-24
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
Microstructural evolutions of EK61 superalloy during long-term aging until 1000 h at 700°C and 750°C, respectively, are studied by combination of Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM).
Impact fracture morphologies after aging for different time are observed by the SEM.
The microstructure is found to be relatively stable during aging at 700°C, and the fracture morphologies are characterized by transgranular fracture.
At 750°C, the coarsening of γ′ phase leads the reduction of the quantity of dimples, the chainization of carbides on grain boundaries leads to intergranular fracture, and the netting of η phases within grains leads to the formation of lamellar cleavage steps.
It is obvious that the destabilization of precipitated phases affects fracture morphology significantly.
The relationship between fracture morphology and the microstructure promotes the evaluation of service reliability of EK61 superalloy.
American Psychological Association (APA)
Huang, Jin& Xu, Guohua& Qin, Heyong& Zheng, Lei. 2020. Correlation between Fracture Morphology and Microstructural Evolution during Long-Term Aging of EK61 Superalloy. Scanning،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1207387
Modern Language Association (MLA)
Huang, Jin…[et al.]. Correlation between Fracture Morphology and Microstructural Evolution during Long-Term Aging of EK61 Superalloy. Scanning No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1207387
American Medical Association (AMA)
Huang, Jin& Xu, Guohua& Qin, Heyong& Zheng, Lei. Correlation between Fracture Morphology and Microstructural Evolution during Long-Term Aging of EK61 Superalloy. Scanning. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1207387
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1207387