Choudhary, C and Sahoo, K L and Mandal, D (2019) The Effect of Thermo-Mechanical Processing on the Microstructure and Mechanical Properties of Modified SIMA Treated Al-7Si Alloy. Light Metals . pp. 241-249.
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The effect of holding time and temperature in the Modified Strain Induced Melt Activation process on microstructure and mechanical properties of Al -7 wt% Si alloy was investigated. Al -7 wt% Si alloy was prepared through melting and casting route. The alloy was homogenized at 540 ℃ for 6 h. The plate was deformed 40 and 60% by warm rolling followed by air cooling. The deformed samples were heat treated for different temp. (585, 595 and 605 ℃) and time (10, 30 and 60 min). The microstructure and mechanical properties of Modified SIMA treated samples were evaluated and compared with as-cast samples. It is observed that with increasing isothermal holding temperature and time during Modified SIMA process, the mechanical properties such as yield strength , ultimate tensile strength and hardness are increased but percentage of elongation decreased. The better combination of mechanical properties was obtained when 60% deformed alloy was isothermally hold at temperature 585 ℃ for 30 min.
|Uncontrolled Keywords:||SIMA process;mechanical properties;Modified Strain Induced Melt|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Sahu A K|
|Deposited On:||30 Sep 2019 10:41|
|Last Modified:||30 Sep 2019 10:41|
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