Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dislocation Driven Chromium Precipitation in Fe-9Cr Binary Alloy: A
  Positron Lifetime Study   The influence of initial heat treatment on anomalous Cr precipitation within
high temperature solubility region in Fe-9Cr alloy has been investigated using
positron lifetime studies. Air-quenched samples with pre-existing dislocations
exhibited a distinct annealing stage in positron lifetime between 800 and 1100
K corresponding to Cr-precipitation. During this stage, Transmission Electron
Microscopy showed fine precipitates of average size 4 nm, dispersed throughout
the sample and from EDS analysis they are found to be Cr-enriched. The
existence of dislocations is found to be responsible for Cr precipitation.

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The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
9
The categories of this paper are: nlin
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The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph