Development of the system for three-dimensional analysis of fracture surface and proposal of the three-dimensional fractography

断口三维分析系统的开发及三维断口成像技术的提出

• 批准号: 08555028
• 负责人: OKAMURA Hiroyuki
• 金额: $ 6.02万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555028/
• 关键词: fracture surface; microscope; fractography; facet; dimple; 破壊力学; フラクトグラフィー

Microscopic observations of metal fracture surface have been developed as the fractography in order to investigate the micro-destruction mechanism. The aim of this paper is to execute the three-dimensional observation by using the Laser Microscope which has many advantages compared with the scanning electron microscope. A new scannlng apparatus installed on the moving stage of the microscope was improved to get the three-dimensional quantitative information on the fracture surface. The computer Program is also developed to study the quantitative relationship between three-dimensional parameters of the fracture surfaces and destructive phenomenon. It is useful to understand the three-dimensional shapes of fracture on the computer display. As the results, it becomes possible not only to measure the facet size and averaged depth of the fracture surface, but also to analyze the quantitative three-dimensional analysis of dimple depth. This system leads to propose the three-dimensional fractography to analyze the metal fracture surface.

为了研究金属材料的微观破坏机理，对金属材料断口的显微观察已发展成为断口分析技术。激光显微镜与扫描电子显微镜相比具有许多优点，本文的目的是利用激光显微镜进行三维观察。改进了一种安装在显微镜移动台上的新型扫描装置，以获得断口的三维定量信息。并编制了计算机程序，研究了断裂面三维参数与破坏现象之间的定量关系。在计算机显示器上理解骨折的三维形状是有用的。其结果是，它成为可能，不仅可以测量小平面尺寸和平均深度的断裂表面，而且还分析了定量的三维分析的韧窝深度。该系统引出了三维断口分析技术来分析金属断口。