In situ electro-plastic treatment for thermomechanical processing of CP titanium
نویسندگان
چکیده
Titanium and its alloys have been used in a broad range of products such as biomedical implants due to their high specific strength, corrosion resistance, biocompatibility. Improvement microstructure mechanical properties commercially pure (CP) titanium is usually performed by cold rolling controlled atmosphere heat treatment. However, this an energy-intensive, expensive, multi-stage process achieve the desired properties. Hence, address these challenges, study, effects situ electro-plastic treatment (ISEPT) on evolution CP studied. The deformation load electric current were applied same direction (in situ) maximize effect. Simultaneous strain application created condition for dynamic recrystallization occur at low temperature under atmospheric conditions, thus reducing cost energy manufacturing single process. rapid heating cooling prevented oxidation large degree, eliminating requirements costly inert gas or vacuum. results showed 3.2 mm/s roller surface speed. Recrystallization led reduction average grain size 7 μm with 18% increase microhardness. Pre-cold CP-Ti structure enhanced refinement introduction dislocations interactions. SEM XRD investigations revealed relationship between ISEPT CP-Ti. effect specimen geometry was discussed.
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ژورنال
عنوان ژورنال: The International Journal of Advanced Manufacturing Technology
سال: 2021
ISSN: ['1433-3015', '0268-3768']
DOI: https://doi.org/10.1007/s00170-021-07342-6