Severe through-thickness texture inhomogeneity is apt to occur during hot-rolling of tungsten. This raises the intriguing notion of how is the inhomogeneity affected by stress-involved or heat-involved factors of the thermo-mechanical process. The texture development in the bulk and at the surface were investigated, and the main focus was on the role of grain boundaries on texture development. The deformed texture at the surface and in the bulk seems similar, but the recrystallized texture of them evolves in entirely different manner, hence, the through-thickness effect is considered to be unilaterally triggered by heat-involved factor, i.e., “annealing” rather than “straining”. In the bulk, the recrystallized orientation basically retains the starting deformed γ-texture and θ-texture even if grain growth occurs. Meanwhile some subtle alternations (nucleation behaviors) show statistically a strong correlation with CSL relationships. At the surface, the deformed γ-texture is completely replaced by a prominent Goss texture ({110}〈001〉) at 1100 °C. The grain boundary plane distribution (GBPD) analysis demonstrates that the formation of Goss texture at the surface is controlled by low angle grain boundaries (LAGBs) and {112}〈111〉 or {100}〈110〉 oriented nucleation is controlled by Σ3 CSL boundary.

在钨的热轧过程中，容易出现严重的贯穿厚度的组织不均匀性。这引起了一个有趣的想法，即不均匀性如何受到热机械过程的受应力或受热因素影响。研究了本体和表面的纹理发展，并且主要关注晶粒边界在纹理发展中的作用。表面和整体的变形纹理看起来相似，但是它们的重结晶纹理以完全不同的方式演化，因此，通过热影响因素，即“退火”而不是“单向”触发了贯穿厚度效应。而不是“紧张”。总体上，即使发生晶粒长大，重结晶的取向也基本上保留了开始变形的γ织构和θ织构。同时，一些微妙的交替（成核行为）在统计上显示与CSL关系密切相关。在表面上，在1100°C时，变形的γ纹理完全被突出的戈斯纹理（{110} <001>）取代。晶界平面分布（GBPD）分析表明，低角晶界（LAGBs）控制了表面戈斯织构的形成，而{112} <111>或{100} <110>取向的成核则受到了低角度晶界的控制。Σ3 CSL边界。