Figure 5 The microstructure of solution–treated die–cast Al–Si–Cu alloy with 1.0 wt.% Fe; (a) optical micrograph showing the overall microstructure; (b) backscattered SEM micrograph showing the distribution of (c) SEM image showing the Al–Si α–AlFeMnSi; eutectic phase. Figure 6 The tensile properties of the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 for 30 min (YS: yield strength; UTS: ultimate tensile strength; ℃ El: elongation). Figure 7 The hardness (HV) as a function of ageing time for the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 for 30 min. and subsequently aged ℃ at 170℃. Figure 8 The tensile properties of the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 for 30min and subsequently aged at 170℃ for 24h (YS: yield ℃ strength; UTS: ultimate tensile strength; El: elongation).
Figure 5 The microstructure of solution–treated die–cast Al–Si–Cu alloy with 1.0 wt.% Fe; (a) optical micrograph showing the overall microstructure; (b) backscattered SEM micrograph showing the distribution of α–AlFeMnSi; (c) SEM image showing the Al–Si eutectic phase. Figure 6 The tensile properties of the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 ℃ for 30 min (YS: yield strength; UTS: ultimate tensile strength; El: elongation). Figure 7 The hardness (HV) as a function of ageing time for the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 ℃ for 30 min. and subsequently aged at 170℃. Figure 8 The tensile properties of the die–cast Al–Si–Cu alloys with different Fe contents after solution–treated at 510 ℃ for 30min and subsequently aged at 170℃ for 24h (YS: yield strength; UTS: ultimate tensile strength; El: elongation).
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