Nanoindentation study of short-range ordering
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2019-04-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
Series
Materials Research Express, Volume 6, issue 4
Abstract
Thermal ageing of nickel-base alloys can lead to the formation of brittle ordered phases, but the direct study of these phases is challenging. Nanoindentation is used in this study as an alternative technique to determine the extent of short-range ordering (SRO) in thermally aged Alloy 690 TT. Two methods are used for obtaining both qualitative (depth sensitivity) and quantitative (spatial stability) results, which are compared to data from metallography, microhardness and atomic force microscopy in order to discriminate between factors affecting the hardness. When intergranular precipitation and grain size become dominant factors with increasing indentation loads, nanoindentation at low loads enables to distinct within-grain hardness increase related to SRO.Description
Keywords
Alloy 690, Csm, Hardness, Nanoindentation, Ordering
Other note
Citation
Mouginot, R, Sarikka, T, Ehrnstén, U & Hänninen, H 2019, ' Nanoindentation study of short-range ordering ', Materials Research Express, vol. 6, no. 4, 045052 . https://doi.org/10.1088/2053-1591/aafeaf