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.

为了研究微毁灭机制，已经开发了金属断裂表面的微观观察结果。本文的目的是通过使用与扫描电子显微镜相比具有许多优势的激光显微镜来执行三维观察。改进了在显微镜的移动阶段安装的新扫描设备，以获取裂缝表面上的三维定量信息。还开发了计算机程序来研究断裂表面的三维参数与破坏性现象之间的定量关系。了解计算机显示屏上骨折的三维形状很有用。作为结果，不仅有可能测量裂缝表面的小平面尺寸和平均深度，而且还可以分析对凹痕深度的定量三维分析。该系统导致提出三维分裂术以分析金属断裂表面。