• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Analysis of simulated hypervelocity impacts on a titanium fuel tank from the Salyut 7 space station
【24h】

Analysis of simulated hypervelocity impacts on a titanium fuel tank from the Salyut 7 space station

机译：Salyut 7空间站对钛燃料箱的模拟超高速撞击分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of this project was to gain a better understanding of the microstructural effects of hypervelocity impacts (HVI) in titanium alloys. We investigated a titanium fuel tank recovered from the Russian Salyut 7 space station, which was launched on April 19, 1982 before being destroyed during an un-controlled re-entry in 199 1, reportedly scattering debris over parts of South America. Several sections were cut out from the tank in order to undergo HVI simulations using a two-stage light gas gun. In addition, a Ti-6Al-4V alloy was studied for further comparison. The crater morphologies produced were successfully characterised using microscope-based white light interferometry (Zygo (R) Corp, USA), while projectile remnants were identified via secondary ion mass spectrometry (SIMS). Microstructural alterations were investigated using focused ion beam (FIB) milling and depth profiling, as well as transmission electron microscopy (TEM). There was evidence of a very high density of dislocations in the vicinity of the crater. The extent of the deformation was localised in a region of about one to two radii of the impact craters. No notable differences were observed between the titanium alloys used during the hypervelocity impact tests. (c) 2006 Elsevier B.V. All rights reserved.
机译：该项目的目的是更好地了解钛合金中超高速冲击（HVI）的微观结构效应。我们调查了从俄罗斯Salyut 7空间站回收的钛燃料罐，该燃料罐于1982年4月19日发射升空，然后在不加控制的重返199 1期间被摧毁，据报道该碎片散布在南美部分地区。从储罐上切下几个部分，以便使用两级轻型气枪进行HVI模拟。另外，研究了Ti-6Al-4V合金以作进一步比较。使用基于显微镜的白光干涉仪（Zygo（R）Corp，美国）成功地表征了产生的弹坑形态，同时通过二次离子质谱（SIMS）识别了弹丸残留物。使用聚焦离子束（FIB）铣削和深度轮廓分析以及透射电子显微镜（TEM）研究了微观结构变化。有证据表明，火山口附近的位错密度很高。变形的程度局限于冲击坑的大约一到两个半径的区域。在超高速冲击试验中使用的钛合金之间没有观察到显着差异。 （c）2006 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号