Optimization of Tensile Strength and Ductility of Grade 2 Ti, Conditioned by Severe Plastic Deformation

A.A. de A. Mendes Filho; Vitor Luiz Sordi; Maurizio Ferrante

doi:10.4028/www.scientific.net/MSF.667-669.803

Paper Titles

CP-Ti Processed for Multiple Passes by ECAP at Room Temperature
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Investigation on Three-Dimensional Microstructures and Tensile Properties of Pure Iron during Equal-Channel Angular Pressing
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Effect of Impurities on the Microstructure of HPT Deformed Nickel
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Optimization of Tensile Strength and Ductility of Grade 2 Ti, Conditioned by Severe Plastic Deformation
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Influence of Strain Reversals during High Pressure Torsion Process on Strengthening in Al-Cu-Mg(-Li) Alloy
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Mechanical Properties of an Al-5.4%Mg-0.5%Mn-0.1%Zr Alloy Subjected to ECAP and Rolling
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Microstructure Stability and Creep Behaviour of a Cu-0.2wt.%Zr Alloy Processed by Equal-Channel Angular Pressing
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Temperature Effects on the Mechanical Behavior of Ultrafine-Grained Material
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HomeMaterials Science ForumMaterials Science Forum Vols. 667-669Optimization of Tensile Strength and Ductility of...

Optimization of Tensile Strength and Ductility of Grade 2 Ti, Conditioned by Severe Plastic Deformation

Abstract:

Among the materials employed for orthopedic implants, Ti-6Al-4V is definitely the best choice due to its excellent properties. However, a more intense use is hindered by high cost and the presence of harmful elements, viz. Al and V. A solution can be found in commercially pure Ti, provided its tensile and fatigue properties can be upgraded by some process of Severe Plastic Deformation. In the present work, Grade 2 Ti was submitted to up to four Equal Channel Angular Pressing passes, followed by cold rolling (30 70 and 90% reduction ratio) Hardness and tensile properties were determined, paying attention to the work hardening behavior. Results show that Severe Plastic Deformation gives a 442 MPa increase over the yield strength of annealed Grade 2 Ti (originally 337 MPa), while elongation reached 21%. Best results were obtained with four passes followed by 70% cold rolling reduction. Finally, the microstructural stability was assessed by hardness measurements.

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Periodical:

Materials Science Forum (Volumes 667-669)

Pages:

803-808

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.667-669.803

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Online since:

December 2010

Authors:

A.A. de A. Mendes Filho, Vitor Luiz Sordi, Maurizio Ferrante

Keywords:

Rolling , Equal-Channel Angular Pressing (ECAP), Tensile Strength, Ti-CP2, Work-Hardening

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