Author's: R. Servin-Castañeda, I. Calderon-Ramos, F. Equihua-Guillen, R. D. Morales, R. D. Mercado SolÃs and Vega-Lebrun Carlos Arturo
Pages: [17] - [37]
Received Date: March 30, 2017
Submitted by:
DOI: http://dx.doi.org/10.18642/jmseat_7100121812
In the present study, the effect of the percentage of carbides MC and
is analyzed on the hardness of HSS steel used
to manufacture lamination rolls; heat treatment was given to one piece
of the material, with high Cr, Mo and V contents. This was
subsequently cut and prepared, according to ASTM the standards to
measure microhardness from the carbides, the percentages of each one
of them and the macrohardness of the material. Applying different
techniques of characterization the evolution of the hardness in the
microstructure became evidenced; what we found was that the highest
hardnesses is obtained when the amount of carbides
is approximately
of the amount of MC carbides (ratio of about
MC per
It is also possible to verify that there is a
hardness drop of
of the surface with respect to the center, this
is due to a
reduction in the
and
which means that there is a hardness drop of
approximately with respect to the reduction of
carbides in
carbides, high speed steel (HSS), hardness, lamination, rolls.