| MICROSTRUCTURE AND MECHANICAL BEHAVIOUR OF Al-Li-Zr AND Al-Li-Cu-Mg-Zr ALLOYS |
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| 作者姓名： | K.T.AUST G.C.WEATHERLY |
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| 作者单位： | University of Toronto Toronto，ONT，Canada，University of Toronto，Toronto，ONT，Canada |
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| 摘 要： | The aging response,tensile and impact properties of two kinds of Al-Li based alloys havebeen studied.The microstructure,deformation as well as fracture behaviour in the alloys wereobserved with SEM and TEM.It was found that the mechanisms of deformation and fracturefor different heat-treated alloys with the same chemical composition are quite different.Thecauses leading to the drop of ductility,toughness as well as anisotropy in peak-aged alloyshave been analysed.Finally,possible methods to improve the ductility and toughness of the al-loys have been discussed.
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| 收稿时间： | 1989-04-25 |
| 修稿时间： | 1989-04-25 |
MICROSTRUCTURE AND MECHANICAL BEHAVIOUR OF Al-Li-Zr AND Al-Li-Cu-Mg-Zr ALLOYS |
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| K.T.AUST,G.C.WEATHERLY.MICROSTRUCTURE AND MECHANICAL BEHAVIOUR OF Al-Li-Zr AND Al-Li-Cu-Mg-Zr ALLOYS[J].Acta Metallurgica Sinica(English Letters),1989,2(2):130-136. |
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| Authors: | YIN Zhimin Central-South University of Technology Changsha ChinaKTAUST GCWEATHERLY University of Toronto Toronto ONT Canada Yin Zhimin |
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| Affiliation: | YIN Zhimin Central-South University of Technology,Changsha,ChinaK.T.AUST G.C.WEATHERLY University of Toronto,Toronto,ONT,Canada Yin Zhimin,Department of Materials Science and Engineering,Central-South University of Technology,Changsha,China |
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| Abstract: | The aging response,tensile and impact properties of two kinds of Al-Li based alloys have been studied.The microstructure,deformation as well as fracture behaviour in the alloys were observed with SEM and TEM.It was found that the mechanisms of deformation and fracture for different heat-treated alloys with the same chemical composition are quite different.The causes leading to the drop of ductility,toughness as well as anisotropy in peak-aged alloys have been analysed.Finally,possible methods to improve the ductility and toughness of the al- loys have been discussed. |
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| Keywords: | Al-Li based alloy microstructure mechanical properties |
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