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

Solute segregation assisted grain boundary precipitation and its impact to ductility of a precipitation-hardenable magnesium alloy
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DOI：
10.1016/j.msea.2021.141481
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发表时间：
2021-07
期刊：
Materials Science and Engineering: A
影响因子：
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通讯作者：
M. Bian;Xinsheng Huang;Y. Chino
M. Bian;Xinsheng Huang;Y. Chino
中科院分区：
其他
文献类型：
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作者：
M. Bian;Xinsheng Huang;Y. Chino

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Ag和Ca原子在固溶状态下向晶界（GB）偏析，与时效早期的晶粒内部相比较，这有助于GB析出相的早期形成。延长时效导致GB析出相的生长，这是微裂纹的首选起始点。
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.