Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterising Ion-Irradiated FeCr: Hardness, Thermal Diffusivity and
  Lattice Strain   Ion-irradiated FeCr alloys are useful for understanding and predicting
neutron-damage in the structural steels of future nuclear reactors. Previous
studies have largely focused on the structure of irradiation-induced defects,
probed by transmission electron microscopy (TEM), as well as changes in
mechanical properties. Across these studies, a wide range of irradiation
conditions has been employed on samples with different processing histories,
which complicates the analysis of the relationship between defect structures
and material properties. Furthermore, key properties, such as
irradiation-induced changes in thermal transport and lattice strain, are little
explored.
  Here we present a systematic study of Fe3Cr, Fe5Cr and Fe10Cr binary alloys
implanted with 20 MeV Fe$^{3+}$ ions to nominal doses of 0.01 dpa and 0.1 dpa
at room temperature. Nanoindentation, transient grating spectroscopy (TGS) and
X-ray micro-beam Laue diffraction were used to study the changes in hardness,
thermal diffusivity and strain in the material as a function of damage and Cr
content. Our results suggest that Cr leads to an increased retention of
irradiation-induced defects, causing substantial changes in hardness and
lattice strain. However, thermal diffusivity varies little with increasing
damage and instead degrades significantly with increasing Cr content in the
material. We find significant lattice strains even in samples exposed to a
nominal displacement damage of 0.01 dpa. The defect density predicted from the
lattice strain measurements is significantly higher than that observed in
previous TEM studies, suggesting that TEM may not fully capture the
irradiation-induced defect population.

37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat