journal article·2014-05

Evaluation of Changes in Plastic Yield Parameters of Titanium CP-2 using Electrical Resistivity Measurements

Mohammad A. Omari, Tűri Balázs, Igor Sevostianov

International Journal of Fracture· Volume 187· Issue 1
Publisher page

Abstract

The paper focuses on the connection between the changes in electrical resistivity and plastic yield parameters - hardening coefficient and yield stress - of Titanium CP-2 specimens subjected to quasi-static loading-unloading cycles. Such a cross-property connection possible due is made to all the mentioned properties being controlled by the same microstructural parameter – dislocation density that increases during each loading-unloading cycle. Electrical resistivity has been measured at the end of each cycle and plastic yield parameters have been obtained from the stress-strain curves. The microstructural changes were also evaluated using Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). Experimental measurements are in a good agreement with the theoretical estimates.
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Research context

OpenAlex topics: Microstructure and mechanical properties · Hydrogen embrittlement and corrosion behaviors in metals · Non-Destructive Testing Techniques

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