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Ag-rich precipitates formation in the Cu–11%Al–10%Mn–3%Ag alloy

•Cu-rich nanoprecipitates are formed in the presence of Ag.•Bainite precipitation is shifted to higher temperatures in the Cu–11%Al–10%Mn–3%Ag alloy.•The eutectoid α phase and bainite α1 phase compete by the Cu atoms during precipitation process. The formation of Ag-rich precipitates in the Cu–11%Al...

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Published in:Journal of alloys and compounds 2014-12, Vol.615, p.S160-S162
Main Authors: Silva, R.A.G., Paganotti, A., Jabase, L., Adorno, A.T., Carvalho, T.M., Santos, C.M.A.
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container_title Journal of alloys and compounds
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creator Silva, R.A.G.
Paganotti, A.
Jabase, L.
Adorno, A.T.
Carvalho, T.M.
Santos, C.M.A.
description •Cu-rich nanoprecipitates are formed in the presence of Ag.•Bainite precipitation is shifted to higher temperatures in the Cu–11%Al–10%Mn–3%Ag alloy.•The eutectoid α phase and bainite α1 phase compete by the Cu atoms during precipitation process. The formation of Ag-rich precipitates in the Cu–11%Al–10%Mn–3%Ag alloy initially quenched from 1123K was analyzed. The results showed that nanoprecipitates of a Cu-rich phase are produced at about 523K. In higher temperatures these nanoparticles grow and the relative fraction of Ag dissolved in it is increased, thus forming the Ag-rich phase.
doi_str_mv 10.1016/j.jallcom.2013.11.155
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subjects Copper base alloys
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Formations
Forming
Materials science
Metals and alloys
Nanoparticles
Nanostructure
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Phase transitions
Physics
Precipitates
Precipitation
Quenching (cooling)
Silver
Thermal analysis
title Ag-rich precipitates formation in the Cu–11%Al–10%Mn–3%Ag alloy
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