Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evaluation of microstructure and mechanical property variations in
  AlxCoCrFeNi high entropy alloys produced by a high-throughput laser
  deposition method   Twenty-one distinct AlxCoCrFeNi alloys were rapidly prepared by laser
alloying an equiatomic CoCrFeNi substrate with Al powder to create an alloy
library ranging x=0.15-1.32. Variations in crystal structure, microstructure
and mechanical properties were investigated using X-ray diffraction, scanning
electron microscopy, scanning transmission electron microscopy and
nanoindentation. With increasing Al content, the crystal structure transitioned
from a disordered FCC to a mixture of disordered BCC and ordered B2 structures.
While the onset of BCC/B2 formation was consistent with previously reported
cast alloys, the FCC structure was observed at larger Al contents in the laser
processed materials, resulting in a wider two phase regime. The FCC phase was
primarily confined to the BCC/B2 grain boundaries at these high Al contents.
The nanoindentation modulus and hardness of the FCC phase increased with Al
content, while the properties of the BCC/B2 structure were insensitive to
composition. The structure and mechanical properties of the laser-processed
alloys were surprisingly consistent with reported results for cast alloys,
demonstrating the feasibility of applying this high-throughput methodology to
multicomponent alloy design.

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The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ