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首页> 美国卫生研究院文献>Materials >A Novel Extrusion for Manufacturing TiBw/Ti6Al4V Composite Tubes with a Quasi-Continuous Reinforced Structure
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A Novel Extrusion for Manufacturing TiBw/Ti6Al4V Composite Tubes with a Quasi-Continuous Reinforced Structure

机译：用于制造具有准连续增强结构的TiBw / Ti6Al4V复合管的新型挤出机

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摘要

The present work introduces a novel extrusion with filler material to produce the high-performance TiBw/Ti-6Al-4V composite tube with a quasi-continuous reinforced structure. A simulation was adopted to study the effect of the filler material on the shape accuracy of the tubes. Based on the simulation results, the flow stress of the filler material was not the important factor, but the friction coefficient between the filler and TiBw/Ti-6Al-4V composite and the canning shape were critical to the tube precision. The microstructure and mechanical performance for the as-extruded TiBw/Ti-6Al-4V composite tubes were systematically investigated. After extrusion, the transverse section microstructure of the TiBw/Ti6Al4V composite tube remained quasi-continuous and the TiBw were rotated to align the extrusion direction. Moreover, the tensile strength and elongation reached 1240 MPa and 13.5%, resulting from dynamic recrystallization and whisker rotation.
机译：本工作介绍了一种新型的填充材料挤压成型技术，以生产具有准连续增强结构的高性能TiBw / Ti-6Al-4V复合管。通过模拟研究填充材料对管子形状精度的影响。根据仿真结果，填充材料的流动应力不是重要因素，但填充材料与TiBw / Ti-6Al-4V复合材料之间的摩擦系数以及罐头形状对管子的精度至关重要。系统地研究了挤压后的TiBw / Ti-6Al-4V复合管的显微组织和力学性能。挤出后，TiBw / Ti6Al4V复合管的横截面微观结构保持准连续，并且旋转TiBw以对齐挤出方向。此外，由于动态再结晶和晶须旋转，拉伸强度和伸长率分别达到1240 MPa和13.5％。

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