Texture and Microstructure Developments During Hot Rolling of Commercially Pure Titanium

Sahni, Sandeep Kumar (2016) Texture and Microstructure Developments During Hot Rolling of Commercially Pure Titanium. MTech thesis.

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Commercially pure (CP) titanium plates were subjected to hot rolling down to 50%, 70%, 80% and 90% reduction in thickness through unidirectional rolling (UDR), multistep crossrolling (MSCR) and reverse-rolling (RR). It was observed that the samples had dominant basal texture (basal fiber) irrespective of the reduction percentages and the modes of rolling. Two types of twins, {1 1 02} type tensile twins and {1 2 12} type compressive twins, were observed in the microstructures. These twins were present in more abundance in the samples processed under MSCR and RR conditions, particularly for 50% reduction in thickness. A decreasing trend of average grain size, average grain orientation spread and fractions of twin boundaries as well as low angle grain boundaries was observed as a function of deformation for the UDR and RR strain paths. The MSCR samples have shown a deviation from the trend, which has been attributed to dominance of twinning in the deformation mechanism.

Item Type:Thesis (MTech)
Uncontrolled Keywords:CP-titanium; Hot Rolling; Strain Paths; Crystallographic Texture; Deformation Twinning
Subjects:Engineering and Technology > Metallurgical and Materials Science > Physical Metallurgy
Divisions: Engineering and Technology > Department of Metallurgical and Materials Engineering
ID Code:9313
Deposited By:Mr. Sanat Kumar Behera
Deposited On:27 Apr 2018 20:42
Last Modified:27 Apr 2018 20:42
Supervisor(s):Sahoo, Santosh Kumar

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