航空材料学报2013，Vol.33Issue(2)：8-12,5.DOI:10.3969/j.issn.1005-5053.2013.2.002
热轧制变形对网状结构TiBw/Ti6Al4V复合材料组织与性能的影响
Effects of Hot Rolling Deformation on Microstructure and Mechanical Properties of TiBw/Ti6Al4V Composites with Network Microstructure
摘要
Abstract
Based on the successful design and fabrication of network structured TiBw/Ti64 composites with a superior combination of mechanical properties, effects of hot rolling deformation on the microstructure and mechanical properties of TiBw/Ti64 composites with a network microstructure were investigated in the present study. The SEM microstructure results show that the microstructure of the deformed composites depends on the rolling reduction. In the TiBw/Ti64 composites with a network microstrueture, the broken TiB whiskers gradually increase and the local volume fraction of TiBw reinforcement on the network boundary decreases with increasing the rolling reduction. The Ti64 matrix exhibits a transformed p microstructure. The tensile test results show that the ultimate tensile strength and elongation of the novel TiBw/Ti64 composites firstly increase and then decrease with increasing the rolling reduction. This phenomenon is attributed to the combined actions between the deformation and heat treatment strengthening effects of matrix and the weakening effect breaking the TiB whiskers. The ultimate tensile strength of the network structured TiBw/Ti64 composites is increased from 1090MPa to 1330MPa, that is to say, it is increased by 22% . Moreover, the elongation is increased by 97% .关键词
钛基复合材料/轧制变形/网状结构/微观组织/力学性能Key words
titanium matrix composites (TMCs) / rolling deformation/ network microstructure/ microstructure/ mechanical property分类
通用工业技术引用本文复制引用
黄陆军,唐骜,戎旭东,耿林..热轧制变形对网状结构TiBw/Ti6Al4V复合材料组织与性能的影响[J].航空材料学报,2013,33(2):8-12,5.基金项目
国家自然科学基金(51101042,51271064) （51101042,51271064）
中央高校基本科研业务费专项资金资助(HIT.NSRIF.201131) （HIT.NSRIF.201131）
第五批中国博士后特别资助基金(2012T50327) （2012T50327）
第50批中国博士后基金(2011M500653) （2011M500653）
黑龙江省博士后基金 （）
