Title of article
Microstructure and mechanical properties of titanium (Grade 4) processed by high-pressure torsion
Author/Authors
Islamgaliev، نويسنده , , R.K. and Kazyhanov، نويسنده , , V.U. and Shestakova، نويسنده , , L.O. and Sharafutdinov، نويسنده , , A.V and Valiev، نويسنده , , R.Z.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
5
From page
190
To page
194
Abstract
The influence of high-pressure torsion (HPT) at various temperatures on microstructure and mechanical properties of commercially pure (CP) titanium (Grade 4) has been studied using transmission electron microscopy and tensile tests. The temperature range of 70–450 °C for isothermal HPT processing has been used to fabricate nanocrystalline samples with diameter 20 mm under a pressure of 6 GPa. Using the new installation, we demonstrated that the ultimate tensile strength of CP Ti (Grade 4) after HPT processing achieves 1600 MPa as a result of significant grain refinement. At the same time, ductility of the HPT samples has been affected strongly by processing and annealing temperature.
Keywords
HPT , Nanostructures , Titanium
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2008
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2157655
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