Solute segregation assisted grain boundary precipitation and its impact to ductility of a precipitation-hardenable magnesium alloy

Ag and Ca atoms segregate to grain boundaries (GBs) in a solution treated state, which assists the earlier formation of GB precipitates compared to the grain interior during the early stage of aging. Prolonged aging leads to the growth of GB precipitates, which act as preferred initiation sites for...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2021-07, Vol.819, p.141481, Article 141481
Hauptverfasser: Bian, Mingzhe, Huang, Xinsheng, Chino, Yasumasa
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description Ag and Ca atoms segregate to grain boundaries (GBs) in a solution treated state, which assists the earlier formation of GB precipitates compared to the grain interior during the early stage of aging. Prolonged aging leads to the growth of GB precipitates, which act as preferred initiation sites for microcracks.
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source Elsevier ScienceDirect Journals
subjects Chemical precipitation
Ductility
Grain boundaries
Grain boundary
Hardenability
Magnesium alloys
Magnesium base alloys
Microcracks
Precipitate
Precipitates
Segregation
title Solute segregation assisted grain boundary precipitation and its impact to ductility of a precipitation-hardenable magnesium alloy
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