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TWINNING IN Ti-48Ni-2Fe SINGLE CRYSTALS UNDER ROLLING

机译:轧制Ti-48%Ni-2%Fe单晶的孪晶

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Under rolling of Ti-48%Ni-2%Fe single crystals in the phase B2 at 350°C the twinning is the main mechanism of plastic deformation by many initial orientations of these single crystals, as texture data show clearly. Splitting of initial maxima in the stereographic projection of single crystal into several new ones is an evident manifestation of twinning. But this mode of reorientation is observed only at initial stages of rolling, when deformation degrees do not exceed ~10-15%. A geometrical analysis of pole figures for rolled single crystals showed, that at the used rolling temperature the preferable twinning planes there were {114} and {118}.
机译:在350°C下,在B2相中Ti-48%Ni-2%Fe单晶的轧制过程中,孪晶是这些单晶许多初始取向引起塑性变形的主要机理,如纹理数据清楚所示。单晶的立体投影中的初始最大值分裂为几个新的峰是孪晶的明显表现。但是这种重新定向的方式仅在轧制的初始阶段观察到,此时变形度不超过〜10-15%。轧制单晶的极图几何分析表明,在所用轧制温度下,优选的孪晶面为{114}和{118}。

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