Damping behaviors of as-cast and solution-treated AZ91–Ca magnesium alloys
The effects of solution treatment on the microstructure and damping capacity of AZ91 and AZ91–0.4%Ca alloys were investigated. In the as-cast state, the Ca addition contributed to the suppression of discontinuous β precipitation and to the formation of an Al2Ca phase; however, it reduced the amount...
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| Veröffentlicht in: | Journal of alloys and compounds 2014-10, Vol.610, p.169-172 |
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| creator | Jun, Joong-Hwan |
| description | The effects of solution treatment on the microstructure and damping capacity of AZ91 and AZ91–0.4%Ca alloys were investigated. In the as-cast state, the Ca addition contributed to the suppression of discontinuous β precipitation and to the formation of an Al2Ca phase; however, it reduced the amount of compound particles by decreasing the β phase content. After the solution treatment, the AZ91 alloy had only a trace amount of Al8Mn5 particles, whereas β and Al2Ca phases are still observed in the AZ91–0.4%Ca alloy. In strain-amplitude independent region, the solution-treated alloys showed slightly higher damping levels than the as-cast alloys, regardless of Ca addition. In the strain-amplitude dependent region, the Ca-added alloy exhibited a better damping capacity than the Ca-free alloy in as-cast state; however, after solution treatment, the respective damping behaviors were reversed. From the microstructural evolution before and after the solution treatment, the solute concentration in the α-Mg matrix and the number density of compound particles are thought to be the principal factors influencing damping behaviors of the strain-amplitude independent and dependent regions, respectively. |
| doi_str_mv | 10.1016/j.jallcom.2014.04.214 |
| format | Article |
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In the as-cast state, the Ca addition contributed to the suppression of discontinuous β precipitation and to the formation of an Al2Ca phase; however, it reduced the amount of compound particles by decreasing the β phase content. After the solution treatment, the AZ91 alloy had only a trace amount of Al8Mn5 particles, whereas β and Al2Ca phases are still observed in the AZ91–0.4%Ca alloy. In strain-amplitude independent region, the solution-treated alloys showed slightly higher damping levels than the as-cast alloys, regardless of Ca addition. In the strain-amplitude dependent region, the Ca-added alloy exhibited a better damping capacity than the Ca-free alloy in as-cast state; however, after solution treatment, the respective damping behaviors were reversed. From the microstructural evolution before and after the solution treatment, the solute concentration in the α-Mg matrix and the number density of compound particles are thought to be the principal factors influencing damping behaviors of the strain-amplitude independent and dependent regions, respectively.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2014.04.214</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Alloys ; Anelasticity, internal friction, stress relaxation, and mechanical resonances ; AZ91 ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Damping ; Damping capacity ; Density ; Evolution ; Exact sciences and technology ; Magnesium base alloys ; Materials science ; Mechanical and acoustical properties of condensed matter ; Microstructure ; Other heat and thermomechanical treatments ; Physics ; Precipitation ; Solution heat treatment ; Solution treatment ; Treatment of materials and its effects on microstructure and properties</subject><ispartof>Journal of alloys and compounds, 2014-10, Vol.610, p.169-172</ispartof><rights>2014 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c471t-94e488d4de5ad4bed5a8e84d8d3108e33a2e12d0ff3485f43a4c93b0ffcc6ab23</citedby><cites>FETCH-LOGICAL-c471t-94e488d4de5ad4bed5a8e84d8d3108e33a2e12d0ff3485f43a4c93b0ffcc6ab23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925838814010470$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28565538$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Jun, Joong-Hwan</creatorcontrib><title>Damping behaviors of as-cast and solution-treated AZ91–Ca magnesium alloys</title><title>Journal of alloys and compounds</title><description>The effects of solution treatment on the microstructure and damping capacity of AZ91 and AZ91–0.4%Ca alloys were investigated. In the as-cast state, the Ca addition contributed to the suppression of discontinuous β precipitation and to the formation of an Al2Ca phase; however, it reduced the amount of compound particles by decreasing the β phase content. After the solution treatment, the AZ91 alloy had only a trace amount of Al8Mn5 particles, whereas β and Al2Ca phases are still observed in the AZ91–0.4%Ca alloy. In strain-amplitude independent region, the solution-treated alloys showed slightly higher damping levels than the as-cast alloys, regardless of Ca addition. In the strain-amplitude dependent region, the Ca-added alloy exhibited a better damping capacity than the Ca-free alloy in as-cast state; however, after solution treatment, the respective damping behaviors were reversed. From the microstructural evolution before and after the solution treatment, the solute concentration in the α-Mg matrix and the number density of compound particles are thought to be the principal factors influencing damping behaviors of the strain-amplitude independent and dependent regions, respectively.</description><subject>Alloys</subject><subject>Anelasticity, internal friction, stress relaxation, and mechanical resonances</subject><subject>AZ91</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Damping</subject><subject>Damping capacity</subject><subject>Density</subject><subject>Evolution</subject><subject>Exact sciences and technology</subject><subject>Magnesium base alloys</subject><subject>Materials science</subject><subject>Mechanical and acoustical properties of condensed matter</subject><subject>Microstructure</subject><subject>Other heat and thermomechanical treatments</subject><subject>Physics</subject><subject>Precipitation</subject><subject>Solution heat treatment</subject><subject>Solution treatment</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkMFq3DAURUVIIJO0n1DwppCNXcmSbGkVwiRpAwPZNJtsxBvpOdVgWxM9TyC7_kP_MF8Shxm6zerx4Nx74TD2TfBKcNH82FQb6HufhqrmQlVcVbVQR2whTCtL1TT2mC24rXVppDGn7IxowzkXVooFW13DsI3jU7HGP_ASU6YidQVQ6YGmAsZQUOp3U0xjOWWECUNx9WjF299_SygGeBqR4m4o5v30Sl_YSQc94dfDPWcPtze_l7_K1f3Pu-XVqvSqFVNpFSpjggqoIag1Bg0GjQomSMENSgk1ijrwrpPK6E5JUN7K9fx738C6lufsYt-7zel5hzS5IZLHvocR046caNrWSs25_hzVTSuENY2dUb1HfU5EGTu3zXGA_OoEdx-i3cYdRLsP0Y4rN4uec98PE0Ae-i7D6CP9D9dGN1pLM3OXew5nNS8RsyMfcfQYYkY_uZDiJ0vv1c2XJA</recordid><startdate>20141015</startdate><enddate>20141015</enddate><creator>Jun, Joong-Hwan</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20141015</creationdate><title>Damping behaviors of as-cast and solution-treated AZ91–Ca magnesium alloys</title><author>Jun, Joong-Hwan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c471t-94e488d4de5ad4bed5a8e84d8d3108e33a2e12d0ff3485f43a4c93b0ffcc6ab23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Alloys</topic><topic>Anelasticity, internal friction, stress relaxation, and mechanical resonances</topic><topic>AZ91</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Damping</topic><topic>Damping capacity</topic><topic>Density</topic><topic>Evolution</topic><topic>Exact sciences and technology</topic><topic>Magnesium base alloys</topic><topic>Materials science</topic><topic>Mechanical and acoustical properties of condensed matter</topic><topic>Microstructure</topic><topic>Other heat and thermomechanical treatments</topic><topic>Physics</topic><topic>Precipitation</topic><topic>Solution heat treatment</topic><topic>Solution treatment</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jun, Joong-Hwan</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jun, Joong-Hwan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Damping behaviors of as-cast and solution-treated AZ91–Ca magnesium alloys</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2014-10-15</date><risdate>2014</risdate><volume>610</volume><spage>169</spage><epage>172</epage><pages>169-172</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>The effects of solution treatment on the microstructure and damping capacity of AZ91 and AZ91–0.4%Ca alloys were investigated. In the as-cast state, the Ca addition contributed to the suppression of discontinuous β precipitation and to the formation of an Al2Ca phase; however, it reduced the amount of compound particles by decreasing the β phase content. After the solution treatment, the AZ91 alloy had only a trace amount of Al8Mn5 particles, whereas β and Al2Ca phases are still observed in the AZ91–0.4%Ca alloy. In strain-amplitude independent region, the solution-treated alloys showed slightly higher damping levels than the as-cast alloys, regardless of Ca addition. In the strain-amplitude dependent region, the Ca-added alloy exhibited a better damping capacity than the Ca-free alloy in as-cast state; however, after solution treatment, the respective damping behaviors were reversed. From the microstructural evolution before and after the solution treatment, the solute concentration in the α-Mg matrix and the number density of compound particles are thought to be the principal factors influencing damping behaviors of the strain-amplitude independent and dependent regions, respectively.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2014.04.214</doi><tpages>4</tpages></addata></record> |
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| ispartof | Journal of alloys and compounds, 2014-10, Vol.610, p.169-172 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Alloys Anelasticity, internal friction, stress relaxation, and mechanical resonances AZ91 Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Damping Damping capacity Density Evolution Exact sciences and technology Magnesium base alloys Materials science Mechanical and acoustical properties of condensed matter Microstructure Other heat and thermomechanical treatments Physics Precipitation Solution heat treatment Solution treatment Treatment of materials and its effects on microstructure and properties |
| title | Damping behaviors of as-cast and solution-treated AZ91–Ca magnesium alloys |
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