Grain Growth and β-Mg17Al12 Intermetallic Phase Dissolution During Heat Treatment and Its Impact on Deformation Behavior of AZ80 Mg-Alloy

Corrosion behaviour of AZ80 Mg/beryllium–bronze–alloy galvanic couples in typical marine environment

“…The surface morphologies confirmed a serious corrosion on the edge of different samples, which was attributed to the self-corrosion of Mg alloy in seawater spray, indicating that the environment condition also played an important role in the corrosion process. 21–23

5 Surface corrosion morphologies of different samples exposed for 6, 12, 18, 24 and 30 days

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“…The surface morphologies confirmed a serious corrosion on the edge of different samples, which was attributed to the self-corrosion of Mg alloy in seawater spray, indicating that the environment condition also played an important role in the corrosion process. [21][22][23] The corrosion products formed on the samples were tested by XRD. The results were analysed using the software Jade 5.0, which validated that both Mg 5 (CO 3 ) 4-(OH) 2 •5H 2 O and MgSO 4 •7H 2 O existed in different samples.…”

Al11Mn4 formation on Al8Mn5 during the solidification and heat treatment of AZ-series magnesium alloys

“…A body of past research has investigated the dissolution of non-equilibrium eutectic Mg17Al12 during solution heat treatment [16][17][18][19][20], and its effect on corrosion [21][22][23], as well as the crystallography and kinetics of Mg17Al12 precipitation [24][25][26][27]. However, little work has examined how heat treatment alters the Al-Mn IMCs present in AZ91 / AZ80 [28].…”

INVESTIGATION OF DISTINCTIVE SOLUTIONIZING PROCESS PARAMETERS ON SIGNIFICANTLY INCREASING IN STRENGTH AND DUCTILITY OF As-CAST AZ80 Mg ALLOY

“…In the past, many researchers focused their studies to develop and optimize heat treatment processes to achieve the desired mechanical properties of wrought AZ80 Mg alloy [10][11][12][13]. Only some investigations have been reported that relate to microstructure evolution and mechanical properties through heat treatment of as-cast AZ80 Mg alloy condition [14][15][16][17]. However, the strengthening effects reported in those studies are rather limited.…”

“…In particular, Zhang et al [15] studied heat treatment effects on the mechanical properties of cast AZ80 Mg alloy and achieved a tensile strength of 196-197 MPa and yield strength of 126-129 MPa, but ductility (3.66-4.42%) is still relatively low after aging. Besides, several researchers [14,17] have suggested that it is possible to achieve good mechanical properties by controlling the microstructure, texture, dissolution of β-Mg17Al12 phase etc. through optimization of solution treatment.…”