TY - JOUR
T1 - Untangling competition between epitaxial strain and growth stress through examination of variations in local oxidation
AU - Yankova, Maria S.
AU - Garner, Alistair
AU - Baxter, Felicity
AU - Armson, Samuel
AU - Race, Christopher P.
AU - Preuss, Michael
AU - Frankel, Philipp
N1 - Funding Information:
The authors gratefully acknowledge funding from the Engineering and Physical Sciences Research Council UK (EPSRC) through the Centre for Doctoral Training in Advanced Metallic Systems, EP/G036950/1 (M.S.Y., A.G., F.B., S.A.) and MIDAS programme grant EP/S01702X/1 (M.P., C.P.R., P.F.). C.P.R. was funded by a University Research Fellowship of the Royal Society. The authors are thankful to the MUZIC consortium for valuable discussions.
Publisher Copyright:
© 2023, The Author(s).
PY - 2023/1/17
Y1 - 2023/1/17
N2 - Understanding corrosion mechanisms is of importance for reducing the global cost of corrosion. While the properties of engineering components are considered at a macroscopic scale, corrosion occurs at micro or nano scale and is influenced by local microstructural variations inherent to engineering alloys. However, studying such complex microstructures that involve multiple length scales requires a multitude of advanced experimental procedures. Here, we present a method using correlated electron microscopy techniques over a range of length scales, combined with crystallographic modelling, to provide understanding of the competing mechanisms that control the waterside corrosion of zirconium alloys. We present evidence for a competition between epitaxial strain and growth stress, which depends on the orientation of the substrate leading to local variations in oxide microstructure and thus protectiveness. This leads to the possibility of tailoring substrate crystallographic textures to promote stress driven, well-oriented protective oxides, and so to improving corrosion performance.
AB - Understanding corrosion mechanisms is of importance for reducing the global cost of corrosion. While the properties of engineering components are considered at a macroscopic scale, corrosion occurs at micro or nano scale and is influenced by local microstructural variations inherent to engineering alloys. However, studying such complex microstructures that involve multiple length scales requires a multitude of advanced experimental procedures. Here, we present a method using correlated electron microscopy techniques over a range of length scales, combined with crystallographic modelling, to provide understanding of the competing mechanisms that control the waterside corrosion of zirconium alloys. We present evidence for a competition between epitaxial strain and growth stress, which depends on the orientation of the substrate leading to local variations in oxide microstructure and thus protectiveness. This leads to the possibility of tailoring substrate crystallographic textures to promote stress driven, well-oriented protective oxides, and so to improving corrosion performance.
UR - http://www.scopus.com/inward/record.url?scp=85146334767&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-35706-3
DO - 10.1038/s41467-022-35706-3
M3 - Article
C2 - 36646682
AN - SCOPUS:85146334767
SN - 2041-1723
VL - 14
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 250
ER -