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Titolo:
Eutectic reaction and microstructural characteristics of Al (Li)-Mg2Si alloys
Autore:
Li, SP; Zhao, SX; Pan, MX; Zhao, DQ; Chen, XC; Barabash, OM;
Indirizzi:
Acad Sinica, Inst Phys, Beijing 100080, Peoples R China Acad Sinica Beijing Peoples R China 100080 ijing 100080, Peoples R China Ukrainian Acad Sci, Inst Met Phys, UA-252142 Kiev, Ukraine Ukrainian Acad Sci Kiev Ukraine UA-252142 Phys, UA-252142 Kiev, Ukraine
Titolo Testata:
JOURNAL OF MATERIALS SCIENCE
fascicolo: 6, volume: 36, anno: 2001,
pagine: 1569 - 1575
SICI:
0022-2461(200103)36:6<1569:ERAMCO>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
SI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Li, SP Univ Cambridge, Cavendish Lab, PCS Grp, Maldingey Rd, Cambridge CB30HE, England Univ Cambridge Maldingey Rd Cambridge England CB3 0HE 0HE, England
Citazione:
S.P. Li et al., "Eutectic reaction and microstructural characteristics of Al (Li)-Mg2Si alloys", J MATER SCI, 36(6), 2001, pp. 1569-1575

Abstract

Thermal analysis, directional solidification and metallographic techniqueswere applied to investigate the pseudobinary eutectic reaction process andthe microstructural characteristics of Al(Li)-Mg2Si alloys. It was demonstrated that the eutectic reaction curve for L double left right arrow Al(Li)+ Mg2Si in the Al(Li)-Mg-Si system moves to the Al-rich corner with the increase of Li additions. The pseudobinary eutectic point with the highest melting temperature and null temperature range of solidification (Delta T) and the ternary eutectic point for L double left right arrow Al(Li) + Mg2Si Si all move towards the Si-rich direction. Li additions widen the range ofyielding binary eutectic of Al(Li)-Mg2Si and depress the appearing of ternary eutectic efficiently. Al(Li)-Mg2Si eutectic alloys have the best aligned structure when the directional solidification occurs with a DeltaT = 0. The Mg2Si phase has a diversity of morphologies such as rod-like, crossed and rooftop-like. These various morphologies has the same preferred growth direction, i.e. [100]. (C) 2001 Kluwer Academic Publishers.

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Documento generato il 03/12/20 alle ore 21:54:21