000100662 001__ 100662
000100662 005__ 20181203020740.0
000100662 022__ $$a01418610
000100662 02470 $$2ISI$$a000083953200017
000100662 0247_ $$2doi$$a10.1080/014186199251364
000100662 037__ $$aARTICLE
000100662 245__ $$aStructural phase transition in Al-Cu-Mg-Si alloys by transmission electron microscopy study on an Al-4wt% Cu-1 wt% alloy reinforced by SiC particles
000100662 269__ $$a1999
000100662 260__ $$c1999
000100662 336__ $$aJournal Articles
000100662 520__ $$aThe precipitation state of an Al-4 wt% Cu-1 wt% Mg-Ag alloy reinforced with SiC particles fabricated by squeeze casting is studied by transmission electron microscopy. As a consequence of an interfacial reaction the precipitation of the characteristic phases of the unreinforced alloy, Ω and S′, is suppressed and substituted by a new precipitation consisting of isolated nanoscaled rod-shaped precipitates and θ′ plates decorated with a further type of rod-shaped precipitates. These precipitates are the Q-Al5Cu2Mg8Si6 phase (hexagonal with a = 1.035 nm and c = 0.405 nm), and two other new phases also containing Al, Cu, Mg and Si, called QC (hexagonal with a = 0.670 nm) and QP (hexagonal with a = 0.393 nm). These three phases are based on the same latent lattice, the QP lattice. A phase transition model is proposed for these phases. It implies an ordering of the structures given by displacements of atoms from a lattice based on the common QP lattice. This approach is very promising for a better understanding of the precipitation in Al-Mg-Si-Cu alloys.
000100662 700__ $$0248450$$g112215$$aCayron, C.
000100662 700__ $$aSagalowicz, L
000100662 700__ $$aBeffort, O
000100662 700__ $$aBuffat, PA$$g104664$$0240619
000100662 773__ $$j79$$tPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties$$q2833-2851
000100662 909C0 $$xU10192$$0252025$$pCIME
000100662 909C0 $$pLMTM$$xU12903$$0252516
000100662 909CO $$pSB$$pSTI$$particle$$ooai:infoscience.tind.io:100662
000100662 937__ $$aCIME-ARTICLE-1999-008
000100662 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000100662 970__ $$a463/CIME
000100662 980__ $$aARTICLE