aliaje de aluminiu nanostructurate cu - Prezentare
aliaje de aluminiu nanostructurate cu - Prezentare
aliaje de aluminiu nanostructurate cu - Prezentare
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Obiectivele proiectului<br />
♦ Obiectivul general : realizarea <strong>de</strong> pre<strong>aliaje</strong> nanocristaline si <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> <strong>cu</strong><br />
caracteristici înalte, având structură submicronică, <strong>cu</strong> constituenŃi nanometrici, prin utilizarea <strong>de</strong> meto<strong>de</strong> noi si<br />
avansate <strong>de</strong> aliere in procesele <strong>de</strong> elaborare ale <strong>aliaje</strong>lor si <strong>de</strong> prelucrări in faza lichida si solida ale acestora.<br />
♦ Obiective stiintifice:<br />
Studiul echilibrelor in sisteme <strong>de</strong> <strong>aliaje</strong> Al lichid / solid – faze intermetalice soli<strong>de</strong>.<br />
Studiul termodinamic al formarii fazelor intermetalice <strong>cu</strong> Al, Ti, B, Sr, Mn, in sisteme <strong>de</strong> <strong>aliaje</strong> <strong>de</strong> <strong>aluminiu</strong> <strong>cu</strong><br />
elemente principale <strong>de</strong> aliere Si, Mg, Cu.<br />
Mo<strong>de</strong>larea proceselor <strong>de</strong> elaborare / sinteză a pre<strong>aliaje</strong>lor nanocristaline.<br />
Studiul cineticii <strong>de</strong> dizolvare a pre<strong>aliaje</strong>lor nanocristaline in <strong>aluminiu</strong> topit.<br />
Stabilirea proprietăŃilor fizico-structurale si structurale, <strong>de</strong>finitorii ale pre<strong>aliaje</strong>lor nanocristaline si ale <strong>aliaje</strong>lor <strong>de</strong><br />
<strong>aluminiu</strong> <strong>nanostructurate</strong> realizate.<br />
Studiul proceselor electrochimice, in săruri topite, <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor AlSr.<br />
Studiul proceselor <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor si <strong>aliaje</strong>lor <strong>nanostructurate</strong> prin: macinare in atmosfera inerta;<br />
aliere mecanica, difuzie; solidificare ultrarapida a topiturilor metalice; <strong>de</strong>formare plastica severa.<br />
♦ Obiectivele tehnice şi i tehnologice:<br />
Realizarea instalaŃiei experimentale <strong>de</strong> laborator <strong>de</strong> pentru obŃinerea <strong>de</strong> pre<strong>aliaje</strong> AlSr prin proces<br />
electrochimic.<br />
Realizarea <strong>de</strong> echipamente si dispozitive experimentale <strong>de</strong> laborator pentru: procesarea pulberilor metalice<br />
nanocristaline; aliere mecanica; <strong>de</strong>formare plastica severa; presare a pulberilor pre<strong>cu</strong>rsoare <strong>de</strong> pre<strong>aliaje</strong>;<br />
procesări termice.<br />
Stabilirea <strong>de</strong> tehnologii ecologice si noi <strong>de</strong> obŃinere / sinteza a unor pre<strong>aliaje</strong> (AlSr, AlTiB).<br />
Stabilirea <strong>de</strong> tehnologii <strong>de</strong> laborator <strong>de</strong> obŃinere a pre<strong>aliaje</strong>lor nanocristaline AlTiB, AlSr, AlMn.<br />
Stabilirea <strong>de</strong> tehnologii <strong>de</strong> elaborare a <strong>aliaje</strong>lor <strong>de</strong> <strong>aluminiu</strong> <strong>nanostructurate</strong> <strong>cu</strong> pre<strong>aliaje</strong> nanocristaline.<br />
Elaborarea <strong>de</strong> cereri <strong>de</strong> brevet <strong>de</strong> invenŃie pentru materialele realizate si proce<strong>de</strong>ele elaborate.