DECOMPOSITION REACTIONS AND TOUGHENING IN NiAI-Cu ALLOYS. Allen, W., P., Foley, J., C., Cooper, R., F., & Perepezko, J., H. Technical Report Paper abstract bibtex In the NiAl-Cu 3 Al pseudobinary section of the Ni-Al-Cu ternary system, the structural similarity of the binary phases yields a miscibility gap between NiAl (B2 structure with ao=-0.2880 nm) and Cu 3 Al (bcc structure above 5670 C with ao= 0 .2946 nm). Due to the extensive mutual solubility, alloys can be solution-treated as single-phase NiAI and then aged at temperatures within the miscibility gap to investigate possible decomposition reactions. Several NiAl-Cu alloys (containing up to 30 at% Cu) were solution-treated at 1000° C, water-quenched, and then aged at either 475" C or 525* C. The decomposition of the supersaturated NiAl was characterized using XRD and SEM. A modulated microstructure was observed for an initial aging of 24 hours, and is consistent with the presence of a conditional spinodal between the NiAl and the Cu 3
@techreport{
title = {DECOMPOSITION REACTIONS AND TOUGHENING IN NiAI-Cu ALLOYS},
type = {techreport},
id = {189d9363-e1ef-3075-baf6-602b521b2475},
created = {2018-09-14T20:49:55.182Z},
file_attached = {true},
profile_id = {70644822-a92d-388e-a930-3d28afc76b1e},
group_id = {f7d35d58-7823-3e09-9e83-2d24928a3f0e},
last_modified = {2019-01-07T22:04:21.955Z},
read = {false},
starred = {false},
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confirmed = {true},
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abstract = {In the NiAl-Cu 3 Al pseudobinary section of the Ni-Al-Cu ternary system, the structural similarity of the binary phases yields a miscibility gap between NiAl (B2 structure with ao=-0.2880 nm) and Cu 3 Al (bcc structure above 5670 C with ao= 0 .2946 nm). Due to the extensive mutual solubility, alloys can be solution-treated as single-phase NiAI and then aged at temperatures within the miscibility gap to investigate possible decomposition reactions. Several NiAl-Cu alloys (containing up to 30 at% Cu) were solution-treated at 1000° C, water-quenched, and then aged at either 475" C or 525* C. The decomposition of the supersaturated NiAl was characterized using XRD and SEM. A modulated microstructure was observed for an initial aging of 24 hours, and is consistent with the presence of a conditional spinodal between the NiAl and the Cu 3},
bibtype = {techreport},
author = {Allen, W P and Foley, J C and Cooper, R F and Perepezko, J H}
}
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