NDLI: Coarsening behavior of γ′ and γ″ phases in GH4169 superalloy by electric field treatment

Content Provider	Springer Nature Link
Author	Wang, Lei Wang, Yao Liu, Yang Song, Xiu Lü, Xu dong Zhang, Bei jiang
Copyright Year	2013
Abstract	The coarsening behaviors of γ′ and γ″ phases in GH4169 alloy aged at 1023 and 1073 K with electric field treatment (EFT) were investigated by transmission electron microscopy (TEM) and positron annihilation lifetime spectroscopy (PALS). It is demonstrated that precipitation coarsening occurs, and the growth activation energies of γ′ and γ″ phases can be decreased to 115.6 and 198.1 kJ·mol$^{−1}$, respectively, by applying the electric field. The formation of a large number of vacancies in the matrix is induced by EFT. Due to the occurrence of vacancy migration, the diffusion coefficients of Al and Nb atoms are increased to be 1.6–5.0 times larger than those without EFT at 1023 or 1073 K. Furthermore, the formation of vacancy clusters is promoted by EFT, and the increase in strain energy for the coarsening of γ′ and γ″ phases can be counterbalanced by the formation of vacancy clusters.
Starting Page	861
Ending Page	866
Page Count	6
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	20
Issue Number	9
e-ISSN	1869103X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-09-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	superalloys nickel alloys precipitation electric fields aging vacancies Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Solute atom migration in GH4169 superalloy under electrostatic fields

Effect of cold rolling and first precipitates on the coarsening behavior of γ″-phases in Inconel 718 alloy

Microstructure and stress rupture properties of polycrystal and directionally solidified castings of nickel-based superalloys

New approach for assessing the weldability of precipitation-strengthened nickel-base superalloys

Effect of cross wedge rolling on the microstructure of GH4169 alloy

Effect of oxygen content and heat treatment on carbide precipitation behavior in PM Ni-base superalloys

Studies on thermally grown oxide as an interface between plasma-sprayed coatings and a nickel-based superalloy substrate

Effects of Ru on the microstructure and phase stability of a single crystal superalloy

Investigation on the dissolution of η phase in a cast Ni-based superalloy

Coarsening behavior of γ′ and γ″ phases in GH4169 superalloy by electric field treatment

Similar Documents

Solute atom migration in GH4169 superalloy under electrostatic fields

Effect of cold rolling and first precipitates on the coarsening behavior of γ″-phases in Inconel 718 alloy

Microstructure and stress rupture properties of polycrystal and directionally solidified castings of nickel-based superalloys

New approach for assessing the weldability of precipitation-strengthened nickel-base superalloys

Effect of cross wedge rolling on the microstructure of GH4169 alloy

Effect of oxygen content and heat treatment on carbide precipitation behavior in PM Ni-base superalloys

Studies on thermally grown oxide as an interface between plasma-sprayed coatings and a nickel-based superalloy substrate

Effects of Ru on the microstructure and phase stability of a single crystal superalloy

Investigation on the dissolution of η phase in a cast Ni-based superalloy

Coarsening behavior of γ′ and γ″ phases in GH4169 superalloy by electric field treatment