In Situ Investigation of Wear of Materials by a Real-Time Laser Speckle Technique

采用实时激光散斑技术对材料磨损进行原位研究

• 批准号: 8610030
• 负责人: Stephen Rice
• 金额: $ 20万
• 依托单位: The University of Central Florida Board of Trustees
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-08-15 至 1990-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8610030&HistoricalAwards=false
• 关键词: Situ; Investigation; Wear; Materials; Real

The goal of this research is to develop and demonstrate a new real-time laser technique for the in-situ analysis of deformation at sliding conacts. This special laser technique produces multiple interference patterns appears as fine, randomly distributed "speckles" which serve to fingerprint the positions of all points on the surface. The movement of such points by plastic deformation is then recorded by simple photographic methods, and serves as detection of material flow on the contact surface.

这项研究的目的是开发和演示一种新的实时激光技术，用于原位分析滑动接触处的变形。这种特殊的激光技术产生了多个干涉图案，看起来像是细小的、随机分布的“斑点”，用来识别表面上所有点的位置。然后用简单的照相方法记录这些点通过塑性变形的移动，并作为接触表面上材料流动的检测。