Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy
▶ Role of Si and Sb addition to AZ91 alloy on the ageing behavior is studied. ▶ Si and Sb modify the precipitation behavior of AZ91 during aging: DP reaction is suppressed and more continuous precipitates are formed. ▶ The mechanism behind the observed precipitation behavior is understood. Effects o...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010-09, Vol.527 (24), p.6543-6550 |
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| creator | Srinivasan, A. Pillai, U.T.S. Pai, B.C. |
| description | ▶ Role of Si and Sb addition to AZ91 alloy on the ageing behavior is studied. ▶ Si and Sb modify the precipitation behavior of AZ91 during aging: DP reaction is suppressed and more continuous precipitates are formed. ▶ The mechanism behind the observed precipitation behavior is understood.
Effects of Si and Sb additions on the ageing behavior of AZ91 alloy have been investigated. Additions of Si and Sb lead to the formation of thermally stable Mg
2Si and Mg
3Sb
2 intermetallic phases, respectively, which are stable even after solution treatment at 410
°C for 48
h. Ageing treatment of AZ91 alloy at 200
°C results in the formation of Mg
17Al
12 phases in two morphologies: (i) discontinuous and (ii) continuous. Further the results of the present study have shown that individual and combined additions of Si and Sb suppress the formation of discontinuous precipitate during ageing. Dense populations of continuous precipitates observed around the hard intermetallic phases reduce the amount of chemical driving force required for both the initiation and propagation of discontinuous precipitates. In spite of these observations, the hardness measurements of aged alloy samples indicate that the alloying additions do not improve the peak hardness of AZ91 significantly. |
| doi_str_mv | 10.1016/j.msea.2010.07.020 |
| format | Article |
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Effects of Si and Sb additions on the ageing behavior of AZ91 alloy have been investigated. Additions of Si and Sb lead to the formation of thermally stable Mg
2Si and Mg
3Sb
2 intermetallic phases, respectively, which are stable even after solution treatment at 410
°C for 48
h. Ageing treatment of AZ91 alloy at 200
°C results in the formation of Mg
17Al
12 phases in two morphologies: (i) discontinuous and (ii) continuous. Further the results of the present study have shown that individual and combined additions of Si and Sb suppress the formation of discontinuous precipitate during ageing. Dense populations of continuous precipitates observed around the hard intermetallic phases reduce the amount of chemical driving force required for both the initiation and propagation of discontinuous precipitates. In spite of these observations, the hardness measurements of aged alloy samples indicate that the alloying additions do not improve the peak hardness of AZ91 significantly.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2010.07.020</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Ageing ; Aging ; Alloying ; Alloying additions ; Alloying additive ; Antimony ; AZ91 magnesium alloy ; Continuous precipitates ; Cross-disciplinary physics: materials science; rheology ; Discontinuous precipitates ; Exact sciences and technology ; Intermetallic phases ; Magnesium compounds ; Materials science ; Phase diagrams and microstructures developed by solidification and solid-solid phase transformations ; Physics ; Precipitation ; Silicides ; Silicon ; Solid solution, precipitation, and dispersion hardening; aging ; Treatment of materials and its effects on microstructure and properties</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2010-09, Vol.527 (24), p.6543-6550</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c363t-27995a65ce3bb2420ab81c325a772258d880b4790c546706c81ffe6fd297d2dc3</citedby><cites>FETCH-LOGICAL-c363t-27995a65ce3bb2420ab81c325a772258d880b4790c546706c81ffe6fd297d2dc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921509310007586$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23199696$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Srinivasan, A.</creatorcontrib><creatorcontrib>Pillai, U.T.S.</creatorcontrib><creatorcontrib>Pai, B.C.</creatorcontrib><title>Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>▶ Role of Si and Sb addition to AZ91 alloy on the ageing behavior is studied. ▶ Si and Sb modify the precipitation behavior of AZ91 during aging: DP reaction is suppressed and more continuous precipitates are formed. ▶ The mechanism behind the observed precipitation behavior is understood.
Effects of Si and Sb additions on the ageing behavior of AZ91 alloy have been investigated. Additions of Si and Sb lead to the formation of thermally stable Mg
2Si and Mg
3Sb
2 intermetallic phases, respectively, which are stable even after solution treatment at 410
°C for 48
h. Ageing treatment of AZ91 alloy at 200
°C results in the formation of Mg
17Al
12 phases in two morphologies: (i) discontinuous and (ii) continuous. Further the results of the present study have shown that individual and combined additions of Si and Sb suppress the formation of discontinuous precipitate during ageing. Dense populations of continuous precipitates observed around the hard intermetallic phases reduce the amount of chemical driving force required for both the initiation and propagation of discontinuous precipitates. In spite of these observations, the hardness measurements of aged alloy samples indicate that the alloying additions do not improve the peak hardness of AZ91 significantly.</description><subject>Ageing</subject><subject>Aging</subject><subject>Alloying</subject><subject>Alloying additions</subject><subject>Alloying additive</subject><subject>Antimony</subject><subject>AZ91 magnesium alloy</subject><subject>Continuous precipitates</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Discontinuous precipitates</subject><subject>Exact sciences and technology</subject><subject>Intermetallic phases</subject><subject>Magnesium compounds</subject><subject>Materials science</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Physics</subject><subject>Precipitation</subject><subject>Silicides</subject><subject>Silicon</subject><subject>Solid solution, precipitation, and dispersion hardening; aging</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kE1r3DAQhkVpodu0f6AnXQrpwZuRZEsW9BJC-gGBHNIe2osYS-ONFltKJW8g_z5eNvTY08DwvPPxMPZRwFaA0Bf77VwJtxLWBpgtSHjFNqI3qmmt0q_ZBqwUTQdWvWXvat0DgGih27Df1-NIfqk8j5wmmiktOHEMIS4xp8rP7yLHFPjd8JnnxJd74rijmHZ8oHt8jLkck5d_rOAz7hLVeJg5TlN-es_ejDhV-vBSz9ivr9c_r743N7ffflxd3jReabU00ljboe48qWGQrQQceuGV7NAYKbs-9D0MrbHgu1Yb0L4X68V6DNKaIINXZ-z8NPeh5L8HqoubY_U0TZgoH6oT2giprWrNisoT6kuutdDoHkqcsTw5Ae7o0e3d0aM7enRg3OpxDX16mY_V4zQWTD7Wf0mphLXa6pX7cuJoffYxUnHVR0qeQiyrYRdy_N-aZ5VkhrA</recordid><startdate>20100925</startdate><enddate>20100925</enddate><creator>Srinivasan, A.</creator><creator>Pillai, U.T.S.</creator><creator>Pai, B.C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20100925</creationdate><title>Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy</title><author>Srinivasan, A. ; Pillai, U.T.S. ; Pai, B.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-27995a65ce3bb2420ab81c325a772258d880b4790c546706c81ffe6fd297d2dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Ageing</topic><topic>Aging</topic><topic>Alloying</topic><topic>Alloying additions</topic><topic>Alloying additive</topic><topic>Antimony</topic><topic>AZ91 magnesium alloy</topic><topic>Continuous precipitates</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Discontinuous precipitates</topic><topic>Exact sciences and technology</topic><topic>Intermetallic phases</topic><topic>Magnesium compounds</topic><topic>Materials science</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Physics</topic><topic>Precipitation</topic><topic>Silicides</topic><topic>Silicon</topic><topic>Solid solution, precipitation, and dispersion hardening; aging</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Srinivasan, A.</creatorcontrib><creatorcontrib>Pillai, U.T.S.</creatorcontrib><creatorcontrib>Pai, B.C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Srinivasan, A.</au><au>Pillai, U.T.S.</au><au>Pai, B.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2010-09-25</date><risdate>2010</risdate><volume>527</volume><issue>24</issue><spage>6543</spage><epage>6550</epage><pages>6543-6550</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>▶ Role of Si and Sb addition to AZ91 alloy on the ageing behavior is studied. ▶ Si and Sb modify the precipitation behavior of AZ91 during aging: DP reaction is suppressed and more continuous precipitates are formed. ▶ The mechanism behind the observed precipitation behavior is understood.
Effects of Si and Sb additions on the ageing behavior of AZ91 alloy have been investigated. Additions of Si and Sb lead to the formation of thermally stable Mg
2Si and Mg
3Sb
2 intermetallic phases, respectively, which are stable even after solution treatment at 410
°C for 48
h. Ageing treatment of AZ91 alloy at 200
°C results in the formation of Mg
17Al
12 phases in two morphologies: (i) discontinuous and (ii) continuous. Further the results of the present study have shown that individual and combined additions of Si and Sb suppress the formation of discontinuous precipitate during ageing. Dense populations of continuous precipitates observed around the hard intermetallic phases reduce the amount of chemical driving force required for both the initiation and propagation of discontinuous precipitates. In spite of these observations, the hardness measurements of aged alloy samples indicate that the alloying additions do not improve the peak hardness of AZ91 significantly.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2010.07.020</doi><tpages>8</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2010-09, Vol.527 (24), p.6543-6550 |
| issn | 0921-5093 1873-4936 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Ageing Aging Alloying Alloying additions Alloying additive Antimony AZ91 magnesium alloy Continuous precipitates Cross-disciplinary physics: materials science rheology Discontinuous precipitates Exact sciences and technology Intermetallic phases Magnesium compounds Materials science Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation Silicides Silicon Solid solution, precipitation, and dispersion hardening aging Treatment of materials and its effects on microstructure and properties |
| title | Effects of elemental additions (Si and Sb) on the ageing behavior of AZ91 magnesium alloy |
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