Superplasticity of Al-Mg-Li alloy prepared by thermomechanical processing
Grain refinement of Al-Mg-Li alloys for superplasticity prepared by thermomechanical processing has been a difficult task due to the cracking of these alloys when rolled at low temperatures. Raising the rolling temperature resulted in enhanced rollability of these sheets with no cracks but very coar...
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| Veröffentlicht in: | Materials science and technology 2011-10, Vol.27 (10), p.1588-1592 |
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| creator | Zhang, X M Ye, L Y Liu, Y W Tang, J G Zheng, D W |
| description | Grain refinement of Al-Mg-Li alloys for superplasticity prepared by thermomechanical processing has been a difficult task due to the cracking of these alloys when rolled at low temperatures. Raising the rolling temperature resulted in enhanced rollability of these sheets with no cracks but very coarse grains after recrystallisation. To solve this problem, a cross rolling schedule was developed to hinder fracture and simultaneously provide enough stored energy for following recrystallisaiton coupled by lowering the reheating temperature. Fine, equiaxed grains of ∼7 μm was achieved by this new approach and maximum total elongation of about 915% was obtained when deformed at a temperature of 525°C and an initial strain rate of 1×10
−3
s
−1
. |
| doi_str_mv | 10.1179/174328409X408910 |
| format | Article |
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−3
s
−1
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−3
s
−1
.</description><subject>Alloys</subject><subject>Aluminium alloy</subject><subject>Deformation</subject><subject>Grain refining</subject><subject>Particle stimulated nucleation</subject><subject>Recrystallization</subject><subject>Superplasticity</subject><subject>Temperature</subject><subject>Thermomechanical processing</subject><issn>0267-0836</issn><issn>1743-2847</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9UEtLw0AQXkTBWr17DN6js3lssngqxUeh4kEFb2GymW23JNm4myL596ZEEAQ9DXzzPWY-xi45XHOeyRueJXGUJyDfE8glhyM2O0DhiGXHbAaRyELIY3HKzrzfAYCQUs7Y6mXfketq9L1Rph8Cq4NFHT5twrUJsK7tEHSOOnRUBeUQ9FtyjW1IbbE1CutxaRV5b9rNOTvRWHu6-J5z9nZ_97p8DNfPD6vlYh2qWEAfSh4j6oxIU4WVBpmmOY8zJQSNl3JCIcoqopzLEpAgFhXXaVYlWOYp15GK5-xq8h2jP_bk-2Jn964dIws5fpWmIGAkwURSznrvSBedMw26oeBQHPoqfvc1SsJJ4nFDP57_8G8nvmm1dQ1-WldXRY9DbZ122Crji_hP9RcTyn37</recordid><startdate>20111001</startdate><enddate>20111001</enddate><creator>Zhang, X M</creator><creator>Ye, L Y</creator><creator>Liu, Y W</creator><creator>Tang, J G</creator><creator>Zheng, D W</creator><general>Taylor & Francis</general><general>SAGE Publications</general><general>Taylor & Francis Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20111001</creationdate><title>Superplasticity of Al-Mg-Li alloy prepared by thermomechanical processing</title><author>Zhang, X M ; Ye, L Y ; Liu, Y W ; Tang, J G ; Zheng, D W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c360t-913aaf7eefedadf09558137c66e8471ea66bd2e819b0ae036d1f57d4ab851f2c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Alloys</topic><topic>Aluminium alloy</topic><topic>Deformation</topic><topic>Grain refining</topic><topic>Particle stimulated nucleation</topic><topic>Recrystallization</topic><topic>Superplasticity</topic><topic>Temperature</topic><topic>Thermomechanical processing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, X M</creatorcontrib><creatorcontrib>Ye, L Y</creatorcontrib><creatorcontrib>Liu, Y W</creatorcontrib><creatorcontrib>Tang, J G</creatorcontrib><creatorcontrib>Zheng, D W</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, X M</au><au>Ye, L Y</au><au>Liu, Y W</au><au>Tang, J G</au><au>Zheng, D W</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Superplasticity of Al-Mg-Li alloy prepared by thermomechanical processing</atitle><jtitle>Materials science and technology</jtitle><date>2011-10-01</date><risdate>2011</risdate><volume>27</volume><issue>10</issue><spage>1588</spage><epage>1592</epage><pages>1588-1592</pages><issn>0267-0836</issn><eissn>1743-2847</eissn><coden>MSCTEP</coden><abstract>Grain refinement of Al-Mg-Li alloys for superplasticity prepared by thermomechanical processing has been a difficult task due to the cracking of these alloys when rolled at low temperatures. Raising the rolling temperature resulted in enhanced rollability of these sheets with no cracks but very coarse grains after recrystallisation. To solve this problem, a cross rolling schedule was developed to hinder fracture and simultaneously provide enough stored energy for following recrystallisaiton coupled by lowering the reheating temperature. Fine, equiaxed grains of ∼7 μm was achieved by this new approach and maximum total elongation of about 915% was obtained when deformed at a temperature of 525°C and an initial strain rate of 1×10
−3
s
−1
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| language | eng |
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| subjects | Alloys Aluminium alloy Deformation Grain refining Particle stimulated nucleation Recrystallization Superplasticity Temperature Thermomechanical processing |
| title | Superplasticity of Al-Mg-Li alloy prepared by thermomechanical processing |
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