journal article·2017-06

Response to Comment on “An Experimental Study on Evolution of Grain‐Scale Stress/Strain and Geometrical Necessary Dislocations in Advanced TA15 Titanium Alloy during Uniaxial Tension Deformation”

Dong He, Stefan Zaefferer, Qiang Li

Advanced Engineering Materials· Volume 19· Issue 6
Publisher page

Abstract

Britton criticizes the accuracy of the stress value obtained from electron backscatter diffraction (HR‐EBSD) and surmises that the rotation field rather than rotation gradient field was used during geometrical necessary dislocations (GND) calculation process. It is our opinion, however, that the topic of the absolute values of the stresses based on cross correlation and the HR‐EBSD technique is not discussed at all in our paper. Our paper is focused rather on relative values (the evolution of stress/strain partitioning at different tensile strains) but not on absolute values. It should, however, be mentioned that, due to the high orientation changes within grains, the error for stress measurements may be considerable, as pointed out by Britton. The stress measurements should, therefore, be regarded with care. We have checked the GND calculation code carefully and we confirm that the correct rotation gradient field data is adopted in the GND calculation process.
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Research context

OpenAlex topics: Microstructure and mechanical properties · Microstructure and Mechanical Properties of Steels · Titanium Alloys Microstructure and Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Mechanical and Materials Engineering North China University of Technology Beijing 100144 P.R.China

Max‐Planck‐Institut für Eisenforschung Abteilung Mikrostrukturphysik und Umformtechnik Max‐Planck‐Strasse 1, 40237 Düsseldorf Germany

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