<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2021000300516</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.67.516</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Compressive behavior of a Zn22Al2Cu cellular alloy with different densities, microstructures and cell shapes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aragon-Lezama]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garcia-Borquez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Villaseñor]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Materiales ]]></institution>
<addr-line><![CDATA[CDMX ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Superior de Física y Matemáticas ]]></institution>
<addr-line><![CDATA[CDMX ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Investigaciones en Materiales ]]></institution>
<addr-line><![CDATA[CDMX ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>67</volume>
<numero>3</numero>
<fpage>516</fpage>
<lpage>526</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2021000300516&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2021000300516&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2021000300516&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Zn22Al2Cu cellular alloy was prepared with six different densities, two microstructures and two cell shapes to determine the effect of these factors on its compressive behavior. NaCl granules with sharp edges, as purchased and with smooth edges obtained by roughly polishing the purchased granules were used as spacers. The elaboration process of the alloy foam consisted of melting the alloy, immersing the granules in the liquid alloy, air-cooling and then dissolving the salt in boiling water. The matrix obtained with the materials had an as-cast microstructure, and a fine microstructure, which was achieved with a heat treatment applied prior to dissolving the NaCl granules. Samples were tested in compression at a 10-3 s-1 strain rate. The smooth shape of the cells caused that the as-cast microstructure in the matrix produces an elastic behavior, which is described by the equation derived by Ashby for the relative elastic modulus and the relative density of sponges. The same type of cell shape embedded in the fine microstructure produces an elastic behavior in compression that depends on the density, which is typical of very low-density foams, although much lower than those achieved in this study. Compressive behavior is chaotic when cells have sharp shape, regardless microstructure type. The alloy studied with 4 mm mean size cells has a compression behavior like a sponge or low-density foam, when its cell walls have smooth contours, and as-cast or fine microstructure, respectively.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se preparó una aleación celular de Zn22Al2Cu con seis densidades diferentes, dos microestructuras y dos formas de células para determinar el efecto de estos factores en su comportamiento compresivo. Como espaciadores se utilizaron gránulos de NaCl con bordes afilados, tal como se adquirieron, y con bordes lisos obtenidos mediante el desbaste de los gránulos adquiridos. El proceso de elaboración de la aleación celular consistió en fundir la aleación, sumergir los gránulos en la aleación líquida, enfriar al aire y luego disolver la sal en agua hirviendo. La matriz obtenida con los materiales tenía una microestructura recién colada y una microestructura fina, que se logró con un tratamiento térmico aplicado antes de disolver los gránulos de NaCl. Muestras se probaron en compresión a una rapidez de deformación de 10-3 s-1. La forma lisa de las células provocó que la microestructura colada en la matriz produjera un comportamiento elástico, que se describe mediante la ecuación derivada por Ashby para el módulo de elasticidad relativo y la densidad relativa de esponjas. El mismo tipo de forma de célula incrustada en la microestructura fina produce un comportamiento elástico en compresión que depende de la densidad, propia de las espumas de muy baja densidad, aunque muy inferiores a las conseguidas en este estudio. El comportamiento en compresión es caótico cuando las células tienen una forma aguda, independientemente del tipo de microestructura. La aleación estudiada con células de tamaño promedio de 4 mm tiene un comportamiento de compresión como una esponja o espuma de baja densidad, cuando sus paredes celulares tienen contornos lisos y una microestructura de colada o fina, respectivamente.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Zn22Al2Cu cellular alloy]]></kwd>
<kwd lng="en"><![CDATA[semi-solid processing]]></kwd>
<kwd lng="en"><![CDATA[microstructural characterization]]></kwd>
<kwd lng="en"><![CDATA[scanning electron microscopy]]></kwd>
<kwd lng="en"><![CDATA[compression]]></kwd>
<kwd lng="es"><![CDATA[Aleación celular Zn22Al2Cu]]></kwd>
<kwd lng="es"><![CDATA[procesamiento semisólido]]></kwd>
<kwd lng="es"><![CDATA[caracterización de microestructuras]]></kwd>
<kwd lng="es"><![CDATA[microscopía electrónica de barrido]]></kwd>
<kwd lng="es"><![CDATA[compresión]]></kwd>
</kwd-group>
</article-meta>
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