MICROSTRUCTURE AND PROPERTIES OF Mn-CONTAINING TiAI ALLOYS

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作者
CAO Mingzhou
HAN Dong
ZHOU Jing
LI Dong Institute of Metal Research
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TiAl alloy; microstructure; property; twin;
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摘要
The microstructure of Ti-33wt-% Al-(1.6-4.5)wt-% Mn alloys are composed ofγ+αphases,but the volume of x-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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页码:442 / 445
页数:4
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