ISIS Neutron and Muon Source Data Journal

In situ quantification of the micro mechanisms during tensile deformation for an outstanding high entropy alloy via neutron diffraction

Abstract: Recently, high entropy alloy (HEA) concept has been studied as a means of achieving excellent properties of metallic alloys. We have developed an HEA alloy through powder metallurgy, which possesses both high strength and large ductility (as large as 70% at room temperature). However, currently the knowledge at the microstructural scale concerning the underpinning mechanisms during deformation are limited, especially with respect to the interaction between local strain hardening and grain defects (e.g. dislocation substructures and twins). In order to determine these, we proposed to use neutron diffraction to quantify the evolution of the lattice strain in situ during tensile deformation. The results in concert with ex situ electron microscopic characterizations currently undergoing, will provide a pathway for designing HEAs with both enhanced strength and superior ductility.

Principal Investigator: Dr Biao Cai
Local Contact: Dr Saurabh Kabra
Experimenter: Professor PETER LEE
Experimenter: Dr Yiqiang Wang
Experimenter: Dr Kun Yan
Experimenter: Dr Bin Liu
Experimenter: Professor Yong Liu

DOI: 10.5286/ISIS.E.RB1610297

ISIS Experiment Number: RB1610297

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Biao Cai et al; (2016): In situ quantification of the micro mechanisms during tensile deformation for an outstanding high entropy alloy via neutron diffraction, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610297

Data is released under the CC-BY-4.0 license.