Insights on service life of industrial components | 10/23/2018 | Staff
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It is of technological importance to understand the accumulation of plastic damage or deformation in components under various operating conditions in order to estimate their service lifetime.

A team of international researchers led by ANSTO have compared two novel techniques that can be used to assess the degree of accumulated plastic damage in alloys by measuring the amount of dislocations present in the microstructure.

Author - Dr - Ondrej - Muránsky - Electron

Lead author Dr. Ondrej Muránsky said they used Electron Back-Scatter Diffraction (EBSD) and High-Resolution Synchrotron Diffraction (HRSD) to obtain complementary information about the dislocations stored by the material as a result of applied stress.

In the study published in Acta Materialia, Muránsky and his collaborators from Queen's University (Canada), University of California (U.S.), and Argonne National Laboratory (U.S.) compared EBSD and HRSD techniques, and developed Matlab code, which allows the theoretical estimation of plastic damage at the macroscopic level from ESBD data.

Reviewer - Acta - Materialia - Paper - Authors

A reviewer for Acta Materialia commented, "Firstly, it [the paper] is very well written and quite easy to follow. The authors have made a great attempt to really explaining well to the reader the two different methodologies. Secondly, the authors are very honest in their assessments and do not try to hide the shortcomings of either technique."

The study evaluated the advantages and shortcomings of the two techniques by analyzing...
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