Correlation of precipitate evolution with Vickers hardness in Haynes® 282® superalloy : In-situ high-energy SAXS/WAXS investigation

DSpace Repository

Correlation of precipitate evolution with Vickers hardness in Haynes® 282® superalloy : In-situ high-energy SAXS/WAXS investigation

Details

Files for download

Find Full text There are no files associated with this item..

Overview of item record
Publication Article, peer reviewed scientific
Title Correlation of precipitate evolution with Vickers hardness in Haynes® 282® superalloy : In-situ high-energy SAXS/WAXS investigation
Author Haas, Sylvio ; Andersson, Joel ; Fisk, Martin ; Park, Jun-Sang ; Lienert, Ulrich
Research Centre Centre for Profession Studies (CPS)
Date 2018
English abstract
The aim of this work is to characterize the precipitation kinetics in Haynes® 282® superalloys using in-situ high-energy Small Angle X-ray Scattering (SAXS) together with Wide Angle X-ray Scattering (WAXS). The phases identified by WAXS include γ (matrix), γ′ (hardening precipitates), MC (metallic carbides), and M23C6/M6C (secondary metallic carbides). The γ’-precipitates are spheroids with a diameter of several nanometres, depending on the temperature and ageing time. From the SAXS data, quantitative parameters such as volume fraction, number density and inter-particle distance were determined and correlated with ex-situ Vickers microhardness measurements. The strengthening components associated with precipitates and solid solutions are differentiated using the measured Vickers microhardness and SAXS model parameters. A square root dependence between strengthening attributable to the precipitates and the product of volume fraction and mean precipitate radius is found. The solid solution strengthening component correlates with the total volume fraction of precipitates.
DOI https://doi.org/10.1016/j.msea.2017.11.035 (link to publisher's fulltext.)
Publisher Elsevier
Host/Issue Materials Science and Engineering: A;
Volume 711
ISSN 0921-5093
Pages 250-258
Language eng (iso)
Subject X-ray analysis
Characterization
Hardness
Nickel alloys
SAXS
WAXS
Technology
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/24167 Permalink to this page
Facebook

This item appears in the following Collection(s)

Details

Search


Browse

My Account

Statistics