Metastable–Stable
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Metastable–Stable. / Hort, Norbert.
Magnesium Technology 2023. ed. / Steven Barela; Aeriel Leonard; Petra Maier; Neale R. Neelameggham; Victoria M. Miller. Springer Science and Business Media Deutschland GmbH, 2023. p. 11-13 (Minerals, Metals and Materials Series).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Metastable–Stable
AU - Hort, Norbert
N1 - Conference code: 152
PY - 2023/2
Y1 - 2023/2
N2 - Most metallic materials are often cast. This is a highly dynamic process where composition and solidification conditions can become a challenge due to the appearance of porosity, shrinkholes, segregations, and the formation of intermetallic phases. Heat treatments are applied to get rid of segregations, stable, and metastable intermetallic phases for homogenization purposes and to obtain a material that is homogeneous with an adjustable property profile. However, often it is observed that the dissolution especially of metastable phases really takes long times (hundreds or even thousands of hours) and high temperature which is accepted in the academic world but not acceptable for real industrial applications due to time and costs. Especially for biodegradable metals, metastable phases perhaps could be regarded as “stable” when the time of absorption is in range of a few weeks only and could be used to adjust properties.
AB - Most metallic materials are often cast. This is a highly dynamic process where composition and solidification conditions can become a challenge due to the appearance of porosity, shrinkholes, segregations, and the formation of intermetallic phases. Heat treatments are applied to get rid of segregations, stable, and metastable intermetallic phases for homogenization purposes and to obtain a material that is homogeneous with an adjustable property profile. However, often it is observed that the dissolution especially of metastable phases really takes long times (hundreds or even thousands of hours) and high temperature which is accepted in the academic world but not acceptable for real industrial applications due to time and costs. Especially for biodegradable metals, metastable phases perhaps could be regarded as “stable” when the time of absorption is in range of a few weeks only and could be used to adjust properties.
KW - Cast/wrought processing
KW - Heat treatments
KW - Phase diagrams
KW - Stable/metastable phase
KW - Surface modification
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=85159432985&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/fbe3452c-edec-39ed-9a48-abc2e0aaa654/
U2 - 10.1007/978-3-031-22645-8_3
DO - 10.1007/978-3-031-22645-8_3
M3 - Article in conference proceedings
AN - SCOPUS:85159432985
SN - 9783031226458
T3 - Minerals, Metals and Materials Series
SP - 11
EP - 13
BT - Magnesium Technology 2023
A2 - Barela, Steven
A2 - Leonard, Aeriel
A2 - Maier, Petra
A2 - Neelameggham, Neale R.
A2 - Miller, Victoria M.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 152nd TMS Annual Meeting and Exhibition
Y2 - 19 March 2023 through 23 March 2023
ER -