UKAEA Journals

Showing 1 - 5 of 5 Journals Results
2020
UKAEA-CCFE-PR(20)130

In this paper we investigate the residual deformation field in the vicinity of nano-scratch experiments generated using two tip geometries in a (100) Cu single crystal. We compare the deformation with that from indentation, in an attempt to understand the mechanisms of deformation in tangential sliding. The lattice rotation fields are mapped exp…

Preprint Purchase
2020
UKAEA-CCFE-PR(20)91

Ion implantation is widely used as a surrogate for neutron irradiation in the investigation of radiation damage on the properties of materials. Due to the small depth of damage, micromechanical methods must be used to extract material properties. In this work, nanoindentation has been applied to ion irradiated silicon carbide to extract radiatio…

Preprint
2019
UKAEA-CCFE-PR(19)35

We analyse spherical nanoindentation of single crystal copper using two different indenter tips of radii 7.4 and 27 um. The surface deformation surrounding the indents was measured using atomic force microscopy and the elastic rotation fields under the indents were measured using electron diffraction and transmission techniques. Using the measured …

Preprint Published
2018
UKAEA-CCFE-PR(18)49

Predicting strains, stresses and swelling in power plant components exposed to irradiation directly from the observed or computed defect and dislocation microstructure is a fundamental problem of fusion power plant design that has so far eluded a practical solution. We develop a model, free from parameters not accessible to direct evaluation or obs…

Preprint Published
2018
UKAEA-CCFE-PR(18)48

Four industrial beryllium grades were tested via nanoindentation. An extremely high variation of hardness was observed in all samples. Analysis of the nanoindentation data in combination with SEM/EBSD measurements demonstrated that the crystallographic orientation of the indented grain was the major source of the wide variation in hardness, which w…

Preprint Published