高压物理学报2017，Vol.31Issue(3)：231-238,8.DOI:10.11858/gywlxb.2017.03.004
超高速撞击下47Zr45Ti5Al3V合金的宏观与微观响应行为
Macro-and Micro-Damage Behaviors of 47Zr45Ti5Al3V Alloy in Hypervelocity Impact
摘要
Abstract
To assess the suitability of 47Zr45Ti5Al3V alloy used in the future spacecraft in a space debris environment,we performed single and repeated hypervelocity impact experiments on a laser driven mini-flyer system.The crater depth in the recovered target was measured by a surface profile meter.The relationship between the crater depth and the velocity of flyer and the relevance of the crater depth and impact frequency were obtained.We also studied the microstructural changes and micro-damage behaviors of 47Zr45Ti5Al3V alloy using a scanning electron microscope and a transmission electron microscope.The results show that there are no micro-cracks,micro-voids,adiabatic shear bands or dynamic recrystallization in the region adjacent to the crater.In addition,the X-ray diffraction pattern of the bottom of the crater reveals that α and β phases coexist and α→β phase transition occurs,suggesting that the 47Zr45Ti5Al3V alloy exhibits good characteristics of structural stability and mechanical properties after hypervelocity impact,and it is a potential structural material for improving protection against orbital debris impacts on the future spacecraft.关键词
空间碎片/47Zr45Ti5Al3V/超高速撞击/宏观损伤/微观损伤Key words
orbital debris/47Zr45Ti5Al3V/hypervelocity impact/macro-damage/micro-damage分类
数理科学引用本文复制引用
张品亮,龚自正,曹燕,李宇,徐坤博,牟永强,武强,宋光明..超高速撞击下47Zr45Ti5Al3V合金的宏观与微观响应行为[J].高压物理学报,2017,31(3):231-238,8.基金项目
国家自然科学基金青年科学基金(11505299) （11505299）
技术基础科研项目(JSHS2015203B002) （JSHS2015203B002）
