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Extra-strengthening in a harmonic structure designed pure titanium due to preferential recrystallization phenomenon through thermomechanical treatment

机译:通过热机械处理优先重结晶现象,在谐波结构方面设计纯钛

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摘要

The effect of thermomechanical processing (TMP), consisting of cold rolling followed by annealing, on the microstructure and mechanical properties of Harmonic Structure designed commercially pure Ti (HS-Ti) was studied. The TMP of HS-Ti led to the evolution of a peculiar preferentially recrystallized structure, localized in the Shell and Shell-Core interface regions. The underlying mechanism for such a unique microstructural evolution in the TMP HS-Ti has been proposed and discussed. The TMP treated HS-Ti specimens exhibited considerably higher strength values and comparable ductility with respect to its conventional homogeneous structured Ti (Homo-Ti) and as-sintered HS-Ti counterparts. The present work demonstrated that it is feasible to further enhance the superior mechanical properties of harmonic-structured materials through controlling the volume fraction and the grain size of the Core/Shell via controlling TMP parameters.
机译:研究了由冷轧和退火组成的热机械加工(TMP)的影响,研究了谐波结构的微观结构和机械性能设计商业纯Ti(HS-Ti)。 HS-TI的TMP导致了特殊的优先重结晶结构的演变,壳体和壳芯界面区域的局部化。已经提出并讨论了TMP HS-Ti中这种独特的微观结构演进的潜在机制。 TMP处理的HS-TI样本相对于其常规的均匀结构Ti(HOMO-TI)和烧结HS-TI对应物具有相当高的强度值和相当的延展性。本工作证明,通过控制TMP参数,通过控制核心/壳的体积分数和晶粒尺寸进一步增强谐波结构材料的优越性机械性能是可行的。

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