Influence of Solution Heat Treatment on the Microstructure, Hardness and Stress Corrosion Behavior of Extruded Resoloy®

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Influence of Solution Heat Treatment on the Microstructure, Hardness and Stress Corrosion Behavior of Extruded Resoloy®. / Maier, P.; Steinacker, Annkathrin; Clausius, B. et al.
in: JOM: Journal of The Minerals, Metals & Materials Society, Jahrgang 72, Nr. 5, 01.05.2020, S. 1870-1879.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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@article{c2c3949119534327919c2937638d1e83,
title = "Influence of Solution Heat Treatment on the Microstructure, Hardness and Stress Corrosion Behavior of Extruded Resoloy{\textregistered}",
abstract = "The microstructural changes and corrosion response of Resoloy{\textregistered}, a resorbable Mg-Dy-based alloy, are the focus of this study. Hardness, tensile and compressive, and bending tests are used to monitor the changes in the mechanical properties of this material. The corrosion behavior is investigated by stress corrosion of C-rings. Hot-extruded tubes are solution heat-treated at different temperatures and times. The as-extruded condition shows a homogeneous fine-grained microstructure with matrix long-period stacking-ordered (LPSO) structures. Heat treatment at low temperatures and for short times does not significantly change the microstructure but reduces the hardness. Solution heat treatment at relatively high annealing temperatures and long annealing times causes grain growth, resulting in reduced hardness. The microstructure becomes inhomogeneous, medium-sized grains grow, the matrix LPSO structures dissolve, and small bulk LPSO phases develop. The matrix LPSO structures have a positive effect on the corrosion behavior. In particular, the short-term annealing condition shows the most uniform corrosion morphology. Resoloy{\textregistered} is not free of pitting corrosion, but none of the samples fails by cracking.",
keywords = "Engineering",
author = "P. Maier and Annkathrin Steinacker and B. Clausius and N. Hort",
note = "Open Access funding provided by Projekt DEAL. The authors acknowledge support from Hartmut Habeck for the corrosion measurements and Jens Wicke for the metallographic preparations. ",
year = "2020",
month = may,
day = "1",
doi = "10.1007/s11837-020-04077-9",
language = "English",
volume = "72",
pages = "1870--1879",
journal = "JOM: Journal of The Minerals, Metals & Materials Society",
issn = "1047-4838",
publisher = "The Minerals, Metals & Materials Society",
number = "5",

}

RIS

TY - JOUR

T1 - Influence of Solution Heat Treatment on the Microstructure, Hardness and Stress Corrosion Behavior of Extruded Resoloy®

AU - Maier, P.

AU - Steinacker, Annkathrin

AU - Clausius, B.

AU - Hort, N.

N1 - Open Access funding provided by Projekt DEAL. The authors acknowledge support from Hartmut Habeck for the corrosion measurements and Jens Wicke for the metallographic preparations.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - The microstructural changes and corrosion response of Resoloy®, a resorbable Mg-Dy-based alloy, are the focus of this study. Hardness, tensile and compressive, and bending tests are used to monitor the changes in the mechanical properties of this material. The corrosion behavior is investigated by stress corrosion of C-rings. Hot-extruded tubes are solution heat-treated at different temperatures and times. The as-extruded condition shows a homogeneous fine-grained microstructure with matrix long-period stacking-ordered (LPSO) structures. Heat treatment at low temperatures and for short times does not significantly change the microstructure but reduces the hardness. Solution heat treatment at relatively high annealing temperatures and long annealing times causes grain growth, resulting in reduced hardness. The microstructure becomes inhomogeneous, medium-sized grains grow, the matrix LPSO structures dissolve, and small bulk LPSO phases develop. The matrix LPSO structures have a positive effect on the corrosion behavior. In particular, the short-term annealing condition shows the most uniform corrosion morphology. Resoloy® is not free of pitting corrosion, but none of the samples fails by cracking.

AB - The microstructural changes and corrosion response of Resoloy®, a resorbable Mg-Dy-based alloy, are the focus of this study. Hardness, tensile and compressive, and bending tests are used to monitor the changes in the mechanical properties of this material. The corrosion behavior is investigated by stress corrosion of C-rings. Hot-extruded tubes are solution heat-treated at different temperatures and times. The as-extruded condition shows a homogeneous fine-grained microstructure with matrix long-period stacking-ordered (LPSO) structures. Heat treatment at low temperatures and for short times does not significantly change the microstructure but reduces the hardness. Solution heat treatment at relatively high annealing temperatures and long annealing times causes grain growth, resulting in reduced hardness. The microstructure becomes inhomogeneous, medium-sized grains grow, the matrix LPSO structures dissolve, and small bulk LPSO phases develop. The matrix LPSO structures have a positive effect on the corrosion behavior. In particular, the short-term annealing condition shows the most uniform corrosion morphology. Resoloy® is not free of pitting corrosion, but none of the samples fails by cracking.

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85083689159&partnerID=8YFLogxK

U2 - 10.1007/s11837-020-04077-9

DO - 10.1007/s11837-020-04077-9

M3 - Journal articles

AN - SCOPUS:85083689159

VL - 72

SP - 1870

EP - 1879

JO - JOM: Journal of The Minerals, Metals & Materials Society

JF - JOM: Journal of The Minerals, Metals & Materials Society

SN - 1047-4838

IS - 5

ER -

DOI