Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Grain Boundary Serration in Nickel Alloy Inconel 600: Quantification and
  Mechanisms   The serration of grain boundaries in Inconel 600 caused by heat treatment is
studied systematically. A new method based on Fourier transforms is used to
analyse the multiple wave-like character of the serrated grain boundaries. A
new metric -- the serration index -- is devised and utilised to quantify the
degree of serration and more generally to distinguish objectively between
serrated and non-serrated boundaries. By considering the variation of the
serration index with processing parameters, a causal relationship between
degree of serration and solution treatment/cooling rate is elucidated.
Processing maps for the degree of serration are presented. Two distinct
formation mechanisms arise which rely upon grain boundary interaction with
carbides: (i) Zener-type dragging which hinders grain boundary migration and
(ii) a faceted carbide growth-induced serration.

18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph