Krishna, K Gopala and Manoharan, T C and Kumar, Satender (2007) Effect of Cryo-Deformation on Aging Characteristics of Age-Hardenable Aluminium Alloys. Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)
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The effect of plastic deformation by cryo-rolling on the microstructural evolution and aging characteristics of an Al-Zn-Mg alloy was investigated employing DSC, hardness measurements and TEM/EDAX. Specimens were water quenched after a solution heat-treatment, cryo-rolled upto - 90% deformation, short annealed and aged in 3 different temper conditions. The specimens aged under T6 condition have attained peak hardness with faster precipitation kinetics, during the second step of aging, i.e. at 150oC with in 1 to 3h, the time required being inversely proportional to the amount of deformation. The microstructure consisted of ultra-fine grains with size ranging between 100-250nm. This also resulted in finer precipitates of strengthening particles.
|Item Type:||Project Reports (Exploratory (OLP))|
|Uncontrolled Keywords:||CRYO-Deformation; microstructure; heat treatment; reciprocal extrusion /|
|Deposited By:||Sahu A K|
|Deposited On:||12 Jul 2013 09:53|
|Last Modified:||12 Jul 2013 09:53|
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