Microstructure evolution in a hydrogen charged and aged Al–Zn–Mg alloy
2018; Elsevier BV; Volume: 3; Linguagem: Inglês
10.1016/j.mtla.2018.09.035
ISSN2589-1529
AutoresArtenis Bendo, Kenji Matsuda, Seungwon Lee, K. Nishimura, Hiroyuki Toda, Kazuyuki Shimizu, Tomohito Tsuru, Masatake Yamaguchi,
Tópico(s)Corrosion Behavior and Inhibition
ResumoMicrostructure evolution of alloy with composition Al – 3.4 Zn – 1.9 Mg (at. %) was tracked using high resolution imaging and electron diffraction during ageing at 120 °C after being initially natural aged for 4 days. Hydrogen was charged in microstructure by cutting samples in Electrical Discharge Machine immediately after being quenched from solid solution temperature. Transmission Electron Microscope observations revealed a higher presence of high aspect ratio GPII-zones in microstructure of hydrogen charged and aged samples. Correlation was made with previously reported hydrogen effect into vacancy formation.
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