Microstructure and mechanical properties of die-cast AZ91D magnesium alloy by Pr additions
Mg-9Al-xPr（x=0.4,0.8 and 1.2,mass fraction,%）magnesium alloys were prepared by high-pressure die-casting technique.The effects of Pr on the microstructures of die-cast Mg-9Al based alloy were investigated by XRD and SEM.Needle-like Al11Pr3 phase and polygon Al6Mn6Pr phase are found in the microstruc...
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| Veröffentlicht in: | Transactions of Nonferrous Metals Society of China 2010-07, Vol.20 (B07), p.435-438 |
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| creator | 崔晓鹏 刘海峰 孟健 张德平 |
| description | Mg-9Al-xPr（x=0.4,0.8 and 1.2,mass fraction,%）magnesium alloys were prepared by high-pressure die-casting technique.The effects of Pr on the microstructures of die-cast Mg-9Al based alloy were investigated by XRD and SEM.Needle-like Al11Pr3 phase and polygon Al6Mn6Pr phase are found in the microstructure.With 0.4%Pr addition,fine needle-like Al11Pr3 phase and a small amount of polygon Al6Mn6Pr phase near the grain boundary are found in the microstructure.Increasing Pr addition to 0.8%, lots of coarse needle-like Al11Pr3 phase within grain and polygon Al6Mn6Pr phase on grain boundary are observed.Further increasing Pr addition,the size of needle-like Al11Pr3 phase decreases,while the size of polygon Al6Mn6Pr relatively increases.The mass fraction of Pr at around 0.8%is considered to be suitable to obtain the optimal mechanical properties.The optimal mechanical properties are mainly resulted from grain boundary strengthening obtained by precipitates and solid solution. |
| doi_str_mv | 10.1016/S1003-6326(10)60513-4 |
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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c404t-e18af0b406975b315c7787c093cca0398706c998e0fd7717f919510c0caf10cf3</citedby><cites>FETCH-LOGICAL-c404t-e18af0b406975b315c7787c093cca0398706c998e0fd7717f919510c0caf10cf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85276A/85276A.jpg</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1003632610605134$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>崔晓鹏 刘海峰 孟健 张德平</creatorcontrib><title>Microstructure and mechanical properties of die-cast AZ91D magnesium alloy by Pr additions</title><title>Transactions of Nonferrous Metals Society of China</title><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><description>Mg-9Al-xPr（x=0.4,0.8 and 1.2,mass fraction,%）magnesium alloys were prepared by high-pressure die-casting technique.The effects of Pr on the microstructures of die-cast Mg-9Al based alloy were investigated by XRD and SEM.Needle-like Al11Pr3 phase and polygon Al6Mn6Pr phase are found in the microstructure.With 0.4%Pr addition,fine needle-like Al11Pr3 phase and a small amount of polygon Al6Mn6Pr phase near the grain boundary are found in the microstructure.Increasing Pr addition to 0.8%, lots of coarse needle-like Al11Pr3 phase within grain and polygon Al6Mn6Pr phase on grain boundary are observed.Further increasing Pr addition,the size of needle-like Al11Pr3 phase decreases,while the size of polygon Al6Mn6Pr relatively increases.The mass fraction of Pr at around 0.8%is considered to be suitable to obtain the optimal mechanical properties.The optimal mechanical properties are mainly resulted from grain boundary strengthening obtained by precipitates and solid solution.</description><subject>AZ91D</subject><subject>Coarsening</subject><subject>Grain boundaries</subject><subject>magnesium alloy</subject><subject>Magnesium base alloys</subject><subject>Mechanical properties</subject><subject>Microstructure</subject><subject>Optimization</subject><subject>Polygons</subject><subject>praseodymium</subject><subject>Solution strengthening</subject><subject>X射线衍射</subject><subject>力学性能</subject><subject>压铸技术</subject><subject>微观结构</subject><subject>机械性能</subject><subject>质量分数</subject><subject>镁合金</subject><issn>1003-6326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqFkE9v1DAQxXMAiVL4CEgWF0AoMI4TOz6hqvyVikACLr1YzmS89ZLYWzsBtp8eb7fiyulJozfv6f2q6gmHVxy4fP2NA4haikY-5_BCQsdF3d6rTv6dH1QPc94CtK2U_KS6_OwxxbykFZc1EbNhZDPhlQ0e7cR2Ke4oLZ4yi46Nnmq0eWFnl5q_ZbPdBMp-nZmdprhnw559TcyOo198DPlRdd_ZKdPjOz2tfrx_9_38Y33x5cOn87OLGltol5p4bx0MLUitukHwDpXqFYIWiBaE7hVI1LoncKNSXDnNdccBAa0r4sRp9fKY-9sGZ8PGbOOaQmk0N5t93uY_g6EGONw00KjifnZ0l2nXK-XFzD4jTZMNFNdsNKgSr3pZnN3ReQCUEzmzS362aW84mANscwvbHKgeTrewTVv-3hz_qIz-5SmZjJ4C0ugT4WLG6P-b8PSu-SqGzbUvmwaLP52fyIhWtbzXjfgL82GTdQ</recordid><startdate>20100701</startdate><enddate>20100701</enddate><creator>崔晓鹏 刘海峰 孟健 张德平</creator><general>Elsevier Ltd</general><general>Department of Materials Science and Engineering,Key Laboratory of Advanced Structrural Materials of Ministry of Education,Changchun University of Technology,Changchun 130012,China</general><general>State Key Laboratory of Rare Earth Resources Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China%R&D Centre of Foundry Corporation,FAW Group Corporation,Changchun 130062,China%State Key Laboratory of Rare Earth Resources Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,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>20100701</creationdate><title>Microstructure and mechanical properties of die-cast AZ91D magnesium alloy by Pr additions</title><author>崔晓鹏 刘海峰 孟健 张德平</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-e18af0b406975b315c7787c093cca0398706c998e0fd7717f919510c0caf10cf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>AZ91D</topic><topic>Coarsening</topic><topic>Grain boundaries</topic><topic>magnesium alloy</topic><topic>Magnesium base alloys</topic><topic>Mechanical properties</topic><topic>Microstructure</topic><topic>Optimization</topic><topic>Polygons</topic><topic>praseodymium</topic><topic>Solution strengthening</topic><topic>X射线衍射</topic><topic>力学性能</topic><topic>压铸技术</topic><topic>微观结构</topic><topic>机械性能</topic><topic>质量分数</topic><topic>镁合金</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>崔晓鹏 刘海峰 孟健 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张德平</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructure and mechanical properties of die-cast AZ91D magnesium alloy by Pr additions</atitle><jtitle>Transactions of Nonferrous Metals Society of China</jtitle><addtitle>Transactions of Nonferrous Metals Society of China</addtitle><date>2010-07-01</date><risdate>2010</risdate><volume>20</volume><issue>B07</issue><spage>435</spage><epage>438</epage><pages>435-438</pages><issn>1003-6326</issn><abstract>Mg-9Al-xPr（x=0.4,0.8 and 1.2,mass fraction,%）magnesium alloys were prepared by high-pressure die-casting technique.The effects of Pr on the microstructures of die-cast Mg-9Al based alloy were investigated by XRD and SEM.Needle-like Al11Pr3 phase and polygon Al6Mn6Pr phase are found in the microstructure.With 0.4%Pr addition,fine needle-like Al11Pr3 phase and a small amount of polygon Al6Mn6Pr phase near the grain boundary are found in the microstructure.Increasing Pr addition to 0.8%, lots of coarse needle-like Al11Pr3 phase within grain and polygon Al6Mn6Pr phase on grain boundary are observed.Further increasing Pr addition,the size of needle-like Al11Pr3 phase decreases,while the size of polygon Al6Mn6Pr relatively increases.The mass fraction of Pr at around 0.8%is considered to be suitable to obtain the optimal mechanical properties.The optimal mechanical properties are mainly resulted from grain boundary strengthening obtained by precipitates and solid solution.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/S1003-6326(10)60513-4</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | AZ91D Coarsening Grain boundaries magnesium alloy Magnesium base alloys Mechanical properties Microstructure Optimization Polygons praseodymium Solution strengthening X射线衍射 力学性能 压铸技术 微观结构 机械性能 质量分数 镁合金 |
| title | Microstructure and mechanical properties of die-cast AZ91D magnesium alloy by Pr additions |
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