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通过大塑性变形可以得到超细晶,从而获得有特殊性能的材料。对于工业纯钛以及一些难变形材料,等径弯曲通道变形(ECAP)是获得超细晶的一种最有潜力的方法,但由于ECAP模具的限制,获得的坯料形状和尺寸与所要求的半成品还有一定距离。因此,还需要对ECAP坯料进行一些额外变形,如轧制、挤压或锻造,以达到最终形状要求。为此,研究了后续加工对ECAP工业纯钛坯料显微组织、力学性能和热稳定性的影响。
Through the large plastic deformation can be ultra-fine crystal, resulting in a special performance of the material. For industrial pure titanium and some difficult-to-deformable materials, ECAP is one of the most potential ways to obtain ultrafine crystals, but due to the limitations of the ECAP mold, the shape and size of the billet obtained is not as large as the desired semi- There is still some distance. Therefore, some additional deformation of the ECAP blank, such as rolling, extrusion or forging, is also required to achieve the final shape requirements. Therefore, the effects of subsequent processing on the microstructure, mechanical properties and thermal stability of ECAP industrial titanium billets were studied.