Details

Autor(en) / Beteiligte

• Meng, Chun-Yan
• Zhang, Di
• Liu, Ping-Ping
• Zhuang, Lin-Zhong
• Zhang, Ji-Shan

Titel

Microstructure characterization in a sensitized Al-Mg-Mn-Zn alloy

Ist Teil von

• Rare metals, 2018-02, Vol.37 (2), p.129-135

Ort / Verlag

Beijing: Nonferrous Metals Society of China

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Alloying elements, present in the aluminum solid solution or the precipitates, influence the corrosion resistance of A1-Mg-Mn-Zn alloys. In this study, sensi- tizing treatment was applied to an A1-Mg-Mn-Zn alloy to modify the precipitation at the grain boundaries or in the grains. Transmission electron microscopy （TEM） and scanning electron microscope （SEM） were used to characterize various second-phase particles and determine their orientation relationship with the A1 matrix. After sensitizing treatment, z-phase （Mg32（Al, Zn）49） is observed to precipitate along the grain boundaries in a coarser size, producing a discontinuous grain boundary precipitate structure. In addition, Mn-rich particles are found to form with various shapes, such as global, plate and rhombus.