Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The effect of {\delta}-hydride on the micromechanical deformation of
  Zircaloy-4 studied by in situ high angular resolution electron backscatter
  diffraction   Zircaloy-4 is used extensively as nuclear fuel cladding materials and hydride
embrittlement is a major failure mechanism. To explore the effect of
{\delta}-hydride on plastic deformation and performance of Zircaloy-4, in situ
high angular resolution electron backscatter diffraction (HR-EBSD) was used to
quantify stress and geometrically necessary dislocation (GND) density during
bending tests of hydride-free and hydride-containing single crystal Zircaloy-4
microcantilevers. Results suggest that while the stress applied was
accommodated by plastic slip in the hydride-free cantilever, the
hydride-containing cantilever showed precipitation induced GND pile-up at
hydride-matrix interface pre-deformation, and considerable locally increasing
GND density under tensile stress upon plastic deformation.

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The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
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The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
3
The categories of this paper are: physics