TEM study on microstructures and properties of 7050 aluminum alloy during thermal exposure
The microstructures of 7050 aluminum alloy under different thermal exposure conditions were investigated by means of transmission electron microscopy （TEM）, high resolution electron microscopy （HREM） and tensile test. Guinier preston （GP） zone and η′ phase are the main precipitates in original 7050...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2009-12, Vol.19 (6), p.1405-1409 |
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| creator | 沈凯 陈金灵 尹志民 |
| description | The microstructures of 7050 aluminum alloy under different thermal exposure conditions were investigated by means of transmission electron microscopy （TEM）, high resolution electron microscopy （HREM） and tensile test. Guinier preston （GP） zone and η′ phase are the main precipitates in original 7050 alloy. The orientation relationship between η′ and matrix is [0001]η′//[1 ^1 1]A1 and （10^10）η′//（110）A1. When the alloy is exposed at different temperatures for 500 h, with the thermal exposure temperature increasing, it can be seen under TEM that the precipitates become larger and the width of precipitate free zones （PFZ） becomes larger The higher temperature the alloy is exposed at, the more the strength is reduced. Both GP zones and η′ precipitates getting coarser and the PFZ getting wider should be responsible for the strength decline and elongation rise of 7050 alloy during thermal exposure. |
| doi_str_mv | 10.1016/S1003-6326(09)60041-8 |
| format | Article |
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Guinier preston （GP） zone and η′ phase are the main precipitates in original 7050 alloy. The orientation relationship between η′ and matrix is [0001]η′//[1 ^1 1]A1 and （10^10）η′//（110）A1. When the alloy is exposed at different temperatures for 500 h, with the thermal exposure temperature increasing, it can be seen under TEM that the precipitates become larger and the width of precipitate free zones （PFZ） becomes larger The higher temperature the alloy is exposed at, the more the strength is reduced. Both GP zones and η′ precipitates getting coarser and the PFZ getting wider should be responsible for the strength decline and elongation rise of 7050 alloy during thermal exposure.</description><identifier>ISSN: 1003-6326</identifier><identifier>DOI: 10.1016/S1003-6326(09)60041-8</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>7050 aluminum alloy ; 7050合金 ; 7050铝合金 ; microstructure ; thermal exposure ; 热性能 ; 透射电子显微镜 ; 透射电镜 ; 高分辨电子显微镜</subject><ispartof>Transactions of Nonferrous Metals Society of China, 2009-12, Vol.19 (6), p.1405-1409</ispartof><rights>2009 The Nonferrous Metals Society of China</rights><rights>Copyright © Wanfang Data Co. Ltd. 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Guinier preston （GP） zone and η′ phase are the main precipitates in original 7050 alloy. The orientation relationship between η′ and matrix is [0001]η′//[1 ^1 1]A1 and （10^10）η′//（110）A1. When the alloy is exposed at different temperatures for 500 h, with the thermal exposure temperature increasing, it can be seen under TEM that the precipitates become larger and the width of precipitate free zones （PFZ） becomes larger The higher temperature the alloy is exposed at, the more the strength is reduced. Both GP zones and η′ precipitates getting coarser and the PFZ getting wider should be responsible for the strength decline and elongation rise of 7050 alloy during thermal exposure.</description><subject>7050 aluminum alloy</subject><subject>7050合金</subject><subject>7050铝合金</subject><subject>microstructure</subject><subject>thermal exposure</subject><subject>热性能</subject><subject>透射电子显微镜</subject><subject>透射电镜</subject><subject>高分辨电子显微镜</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkE9P3DAQxXNoJf6Uj1DJ6gGBUIodJ058QghBWwnEgT1xGTn2ZPE2sRc7Liyfvl4W9dqTx6P33uj9iuIro98ZZeL8gVHKS8ErcULlqaC0ZmX3qdj_t94rDmJc5X0tBNsvHhfXdyTOyWyId2SyOvg4h6TnFDAS5QxZB7_GMNv89QNpaUOJGtNkXZryMPoNMSlYtyTzE4ZJjQRf1z5m-5fi86DGiEcf72GxuLleXP0sb-9__Lq6vC113TRz2QkmUSpW9ZIK2QqpBlPXg-B5HNpWNp1pjOTCGKpNpVvRC9Yw2fVCSKM1PyzOdrEvyg3KLWHlU3D5ILwtN3EVX3vAitIcnktn9fFOnWs9J4wzTDZqHEfl0KcIXPBaym4rbHbCLZEYcIB1sJMKG2AUtqjhHTVsmQKV8I4auuy72PkwV_5jMUDUFp1GYwPqGYy3_0349nH5ybvlc0YLvdK_Bzsi8KrKJeqa_wU1CJMv</recordid><startdate>20091201</startdate><enddate>20091201</enddate><creator>沈凯 陈金灵 尹志民</creator><general>Elsevier Ltd</general><general>School of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China%School of Materials Science and Engineering,Central South University,Changsha 410083,China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20091201</creationdate><title>TEM study on microstructures and properties of 7050 aluminum alloy during thermal exposure</title><author>沈凯 陈金灵 尹志民</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c455t-8619e9a12b9069769afd44f63769f77958d5d936dd0cd2c76b615198b669dcc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>7050 aluminum alloy</topic><topic>7050合金</topic><topic>7050铝合金</topic><topic>microstructure</topic><topic>thermal exposure</topic><topic>热性能</topic><topic>透射电子显微镜</topic><topic>透射电镜</topic><topic>高分辨电子显微镜</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>沈凯 陈金灵 尹志民</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Transactions of Nonferrous Metals Society of China</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>沈凯 陈金灵 尹志民</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>TEM study on microstructures and properties of 7050 aluminum alloy during thermal exposure</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><date>2009-12-01</date><risdate>2009</risdate><volume>19</volume><issue>6</issue><spage>1405</spage><epage>1409</epage><pages>1405-1409</pages><issn>1003-6326</issn><abstract>The microstructures of 7050 aluminum alloy under different thermal exposure conditions were investigated by means of transmission electron microscopy （TEM）, high resolution electron microscopy （HREM） and tensile test. Guinier preston （GP） zone and η′ phase are the main precipitates in original 7050 alloy. The orientation relationship between η′ and matrix is [0001]η′//[1 ^1 1]A1 and （10^10）η′//（110）A1. When the alloy is exposed at different temperatures for 500 h, with the thermal exposure temperature increasing, it can be seen under TEM that the precipitates become larger and the width of precipitate free zones （PFZ） becomes larger The higher temperature the alloy is exposed at, the more the strength is reduced. Both GP zones and η′ precipitates getting coarser and the PFZ getting wider should be responsible for the strength decline and elongation rise of 7050 alloy during thermal exposure.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1003-6326(09)60041-8</doi><tpages>5</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete; Alma/SFX Local Collection |
| subjects | 7050 aluminum alloy 7050合金 7050铝合金 microstructure thermal exposure 热性能 透射电子显微镜 透射电镜 高分辨电子显微镜 |
| title | TEM study on microstructures and properties of 7050 aluminum alloy during thermal exposure |
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