Artigo de peri??dico
Thermomechanical treatment and corrosion resistance correlation in the AA2198 Al???Cu???Li alloy
Registro en:
1478-422X
7
54
10.1080/1478422X.2019.1637077
0000-0002-4987-3334
43.841
50.33
Autor
ARAUJO, JOAO V. de S.
BUGARIN, ALINE de F.S.
DONATUS, UYIME
MACHADO, CARULINE de S.C.
QUEIROZ, FERNANDA M.
TERADA, MAYSA
ASTARITA, ANTONELLO
COSTA, ISOLDA
Resumen
The influence of T3, T8 and T851 thermomechanical treatments on the microstructure and corrosion
resistance of the AA2198 was investigated. Differential scanning calorimetry and scanning electron
microscopy were used for microstructural characterisation, whereas electrochemical methods were
employed to analyse the corrosion behaviour of the alloy. The morphology and composition of
constituent particles were similar for the T3 and T8 thermomechanical treatments but varied in the
T851. There was an inverse relation between T1 phase density and corrosion resistance. The T3
treatment with the highest corrosion resistance was the one with the lowest density of T1 phase.
The mechanisms of corrosion varied with the thermomechanical treatments. Funda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP) Conselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq) Coordena????o de Aperfei??oamento de Pessoal de N??vel Superior (CAPES) FAPESP: 13/13235-6; 17/03095-3; 16/20572-7 CNPq: 2017-9/169569; 2015-4/133557 CAPES: PROEX 88882.333459/2019-01
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