Next Article in Journal
Effect of Al Hot-Dipping on High-Temperature Corrosion of Carbon Steel in N2/0.1% H2S Gas
Next Article in Special Issue
Characterisation of an Advanced Nickel Based Superalloy Post Cold Work by Swaging
Previous Article in Journal
Influence of the Hardfacing Welds Structure on Their Wear Resistance
Previous Article in Special Issue
Evolution of the Annealing Twin Density during δ-Supersolvus Grain Growth in the Nickel-Based Superalloy Inconel™ 718
Article Menu

Export Article

Open AccessArticle
Metals 2016, 6(2), 37; doi:10.3390/met6020037

Formation and Dissolution of γ’ Precipitates in IN792 Superalloy at Elevated Temperatures

1
Nuclear Physics Institute ASCR, CZ-25068 Řež near Prague, Czech Republic
2
Institute of Physics of Materials of the ASCR, CZ-61662 Brno, Czech Republic
3
CEITEC Institute of Physics of Materials of the ASCR, CZ-61662 Brno, Czech Republic
4
Laboratory for Neutron Scattering, PSI, CH-5232 Villigen, Switzerland
5
Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16, Prague 2, Czech Republic
These authors contributed equally to this work.
Present address: TESCAN, a.s., CZ-62300 Brno, Czech Republic.
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo Lopez
Received: 4 December 2015 / Revised: 22 January 2016 / Accepted: 1 February 2016 / Published: 17 February 2016
(This article belongs to the Special Issue Superalloys)
View Full-Text   |   Download PDF [3756 KB, uploaded 17 February 2016]   |  

Abstract

Precipitation of γ’ phase in nickel-base superalloy IN792-5A was studied using in-situ Small Angle Neutron Scattering (SANS). It was found that additional precipitates are formed after reheating above 600 °C when the material is previously fast cooled (100 K/min) from 900 °C. The size distribution and volume fraction of the additional γ’ precipitates as well as of the already present medium-size precipitates in dependence on temperature were evaluated. The small precipitates can influence mechanical properties of the alloy, which exhibits an anomaly in the temperature dependence of the yield stress. Volume fraction of all precipitate populations above 900 °C was estimated as well. View Full-Text
Keywords: metals; high temperature alloys; superalloy; precipitation; neutron scattering; in-situ neutron diffraction; small-angle neutron scattering metals; high temperature alloys; superalloy; precipitation; neutron scattering; in-situ neutron diffraction; small-angle neutron scattering
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Strunz, P.; Petrenec, M.; Polák, J.; Gasser, U.; Farkas, G. Formation and Dissolution of γ’ Precipitates in IN792 Superalloy at Elevated Temperatures. Metals 2016, 6, 37.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top