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Effect of texture on anisotropy at 600 ℃ in a near-α titanium alloy Ti60 plate

机译：α钛合金Ti60板在600℃下织构对各向异性的影响

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摘要

To study the anisotropy of mechanical properties at 600 ℃ in a near-a titanium alloy Ti60, a highly T-type textured plate was prepared, and tensile tests, creep tests and creep rupture tests were carried out at 600 ℃. Notable anisotropies were observed in all three kinds of mechanical tests. The deformation in TD was much harder than in RD , no matter high or low was the loading stress. The anisotropy of tensile properties was concluded to be related to the different Schmid Factors distribution caused by T-type texture, leading to prismatic ＜a> slips easily being activated in RD and both prismatic ＜a> and basal ＜a> slips hard to be activated in TD. The restriction of creep deformation in TD samples was believed resulting from the effect of T-type texture on self- and solute diffusion. For the anisotropy of creep rupture properties, it was deduced to be a result of the combined anisotropy of diffusion and dislocation slipping.
机译：为了研究接近钛合金Ti60在600℃下的力学性能各向异性，制备了高T型纹理板，并在600℃下进行了拉伸试验，蠕变试验和蠕变断裂试验。在所有三种机械测试中均观察到明显的各向异性。 TD的变形比RD的变形要困难得多，无论加载应力是高还是低。得出的结论是，拉伸性能的各向异性与T型织构引起的不同Schmid因子分布有关，导致RD中容易激活棱柱形滑动，而棱柱形和基底滑动均不容易在TD中激活。认为TD样品中蠕变变形的限制是由于T型织构对自身和溶质扩散的影响所致。对于蠕变断裂特性的各向异性，可以推论它是扩散和位错滑移相结合的各向异性的结果。

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