| MICROSTRUCTURE AND PROPERTIES OF Mn-CONTAINING TiAI ALLOYS |
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| 作者姓名： | CAO Mingzhou HAN Dong ZHOU Jing LI Dong Institute of Metal Research Academia Sinica Shenyang China Associate Professor Institute of Metal Research Academia Sinica Shenyang China |
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| 作者单位： | CAO Mingzhou;HAN Dong;ZHOU Jing;LI Dong Institute of Metal Research，Academia Sinica，Shenyang，China Associate Professor，Institute of Metal Research，Academia Sinica，Shenyang 110015，China |
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| 摘 要： | The microstructure of Ti-33wt-％ Al-(1.6-4.5)wt-％ Mn alloys are composed ofγ+α_2 phases,but the volume of x_2-phase is a little.Mn alloying decreases the latticeparameters a and c of γ-phase and the c/a ratio becomes nearly to one,because the atomicradius of Mn is less than the atomic radius of Ti or Al.Mn alloying promotes the formation oftwins in γ-phase and increases the ability of plastic deformation of TiAl alloys at room tem-perature.
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| 收稿时间： | 1990-12-25 |
| 修稿时间： | 1990-12-25 |
MICROSTRUCTURE AND PROPERTIES OF Mn-CONTAINING TiAI ALLOYS |
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| CAO Mingzhou,HAN Dong,ZHOU Jing,LI Dong Institute of Metal Research,Academia Sinica,Shenyang,China Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang ,China.MICROSTRUCTURE AND PROPERTIES OF Mn-CONTAINING TiAI ALLOYS[J].Acta Metallurgica Sinica(English Letters),1990,3(6):442-445. |
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| Authors: | CAO Mingzhou HAN Dong ZHOU Jing LI Dong Institute of Metal Research Academia Sinica Shenyang China Associate Professor |
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| Affiliation: | CAO Mingzhou,HAN Dong,ZHOU Jing,LI Dong Institute of Metal Research,Academia Sinica,Shenyang,China Associate Professor,Institute of Metal Research,Academia Sinica,Shenyang,China |
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| Abstract: | The microstructure of Ti-33wt-% Al-(1.6-4.5)wt-% Mn alloys are composed of γ+α_2 phases,but the volume of x_2-phase is a little.Mn alloying decreases the lattice parameters a and c of γ-phase and the c/a ratio becomes nearly to one,because the atomic radius of Mn is less than the atomic radius of Ti or Al.Mn alloying promotes the formation of twins in γ-phase and increases the ability of plastic deformation of TiAl alloys at room tem- perature. |
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| Keywords: | TiAl alloy microstructure property twin |
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