Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys
Effects of various rare-earth elements (RE: Gd, Nd and Ce) additions on microstructures and mechanical properties of ultra-light dual phase Mg-9Li-0.4Zr alloy were investigated. The results indicated that Mg-9Li-5RE-0.4Zr alloys exhibited α-Mg, β-Li and RE-containing intermetallic compound structures. 5 wt.% Gd, Nd and Ce additions enhanced the strength properties of as-extruded Mg-9Li-0.4Zr alloy, but greatly deteriorated the ductility. The final mechanical properties of Mg-9Li-5RE-0.4Zr alloys were 161MPa∼167MPa in ultimate strength, 141MPa∼156MPa in yield strength and 20.8%∼32.5% in elongation. Heat treatment was hardly able to improve the mechanical properties for Mg-9Li-5RE-0.4Zr alloys.
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ABM, ABC, ABPol
2016
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oai:scielo:S1516-143920160003006542016-05-19Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr AlloysBao,LeiZhang,ZhiqiangLe,QichiLi,QinxueCui,Jianzhong Rare-earth elements Mg-Li alloys Strengthening Mechanical properties Heat treatment Effects of various rare-earth elements (RE: Gd, Nd and Ce) additions on microstructures and mechanical properties of ultra-light dual phase Mg-9Li-0.4Zr alloy were investigated. The results indicated that Mg-9Li-5RE-0.4Zr alloys exhibited α-Mg, β-Li and RE-containing intermetallic compound structures. 5 wt.% Gd, Nd and Ce additions enhanced the strength properties of as-extruded Mg-9Li-0.4Zr alloy, but greatly deteriorated the ductility. The final mechanical properties of Mg-9Li-5RE-0.4Zr alloys were 161MPa∼167MPa in ultimate strength, 141MPa∼156MPa in yield strength and 20.8%∼32.5% in elongation. Heat treatment was hardly able to improve the mechanical properties for Mg-9Li-5RE-0.4Zr alloys.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.19 n.3 20162016-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000300654en10.1590/1980-5373-MR-2016-0005 |
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Bao,Lei Zhang,Zhiqiang Le,Qichi Li,Qinxue Cui,Jianzhong |
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Bao,Lei Zhang,Zhiqiang Le,Qichi Li,Qinxue Cui,Jianzhong Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| author_facet |
Bao,Lei Zhang,Zhiqiang Le,Qichi Li,Qinxue Cui,Jianzhong |
| author_sort |
Bao,Lei |
| title |
Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| title_short |
Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| title_full |
Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| title_fullStr |
Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| title_full_unstemmed |
Influence of Gd, Nd and Ce Additions on Microstructures and Mechanical Properties of Ultra-light Dual Phase Mg-9Li-0.4Zr Alloys |
| title_sort |
influence of gd, nd and ce additions on microstructures and mechanical properties of ultra-light dual phase mg-9li-0.4zr alloys |
| description |
Effects of various rare-earth elements (RE: Gd, Nd and Ce) additions on microstructures and mechanical properties of ultra-light dual phase Mg-9Li-0.4Zr alloy were investigated. The results indicated that Mg-9Li-5RE-0.4Zr alloys exhibited α-Mg, β-Li and RE-containing intermetallic compound structures. 5 wt.% Gd, Nd and Ce additions enhanced the strength properties of as-extruded Mg-9Li-0.4Zr alloy, but greatly deteriorated the ductility. The final mechanical properties of Mg-9Li-5RE-0.4Zr alloys were 161MPa∼167MPa in ultimate strength, 141MPa∼156MPa in yield strength and 20.8%∼32.5% in elongation. Heat treatment was hardly able to improve the mechanical properties for Mg-9Li-5RE-0.4Zr alloys. |
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ABM, ABC, ABPol |
| publishDate |
2016 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000300654 |
| work_keys_str_mv |
AT baolei influenceofgdndandceadditionsonmicrostructuresandmechanicalpropertiesofultralightdualphasemg9li04zralloys AT zhangzhiqiang influenceofgdndandceadditionsonmicrostructuresandmechanicalpropertiesofultralightdualphasemg9li04zralloys AT leqichi influenceofgdndandceadditionsonmicrostructuresandmechanicalpropertiesofultralightdualphasemg9li04zralloys AT liqinxue influenceofgdndandceadditionsonmicrostructuresandmechanicalpropertiesofultralightdualphasemg9li04zralloys AT cuijianzhong influenceofgdndandceadditionsonmicrostructuresandmechanicalpropertiesofultralightdualphasemg9li04zralloys |
| _version_ |
1756420644185047040 |