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高等物理冶金-期末報告
Journal of Alloys and Compounds 466 (2008) 268–272
PRECIPITATION HARDENING CHARACTERISTICS OF
AL–SI–FE/SIC PARTICULATE COMPOSITES
S.B. HASSAN, O. APONBIEDE, V.S. AIGBODION
授課老師:戴子堯
學生:朱敬威
學號:MA0R0103
Materials and methods
Pure aluminium
720oC
Silicon (2.8 wt%)
Iron (0.8 wt%)
Add ferrosilicon
SiC particles Added re-heated to full
liquid state
and mixed manually.
pouring temperature were
controlled to be about 720 ◦C
After
casting
780oC
10min
Remove the oxides
and impurities
Automatic mechanical –
mixing time: 20 min
stirring rate: 150 rpm.
heat-treated: 500◦C for 3h
Quenched: 65◦C water
cooled
down
Between
730 and 740 ◦C
5SiCp/Al–Si–Fe
15SiCp/Al–Si–Fe
析出硬化溫度:100,200,300 ◦C
時間:60~660min
The tensile and impact test:
tensile strength, yield strength, hardness values and impact energy.
Results
5SiCp/Al–Si–Fe
15SiCp/Al–Si–Fe
Results
Effect of age-hardening time on the hardness of
5SiCp/Al–Si–Fe composite.
Effect of age-hardening time on the hardness of
15SiCp/Al–Si–Fe composite.
Results
Effect of age-hardening temperature of 200◦C on the
hardness of Al–Si–Fe, 5SiCp/Al–Si–Fe and 15SiCp/Al–Si–Fe.
Effect of age-hardening temperature of 100◦C on the
hardness of Al–Si–Fe, 5SiCp/Al–Si–Fe and 15SiCp/Al–Si–Fe.
Effect of age-hardening temperature of 300◦C on the
hardness of Al–Si–Fe, 5SiCp/Al–Si–Fe and 15SiCp/Al–Si–Fe.
Results
Mechanical properties of the various grades of Al–Si–Fe/SiCp composites
Thanks for your attention!!