基于优选算法的界面结合强度激光离散划痕装置

提出了涂层-基体界面结合强度的单脉冲激光离散划痕快速检测的新方法,针对该方法设计了一种实现离散划痕的自动化装置。通过检测典型涂层失效建立失效数据库;激光器系统采用优选算法逼近使涂层失效的激光功率密度范围;检测系统通过功率计检测涂层表面红外光束反射得出涂层表面形貌的特征参数;将检测系统得出的参数与失效数据库进行比较,得出激光器下一点激光输出功率。逐步逼近,最终实现对涂层失效阈值的确定,智能化地实现了离散划痕任务。

Abstract

A new detecting method of pulse laser discrete scratching is presented to estimate the bond strength of film-substrate interface and a device is designed to achieve the automation of discrete scratch. Through detecting typical coatings failure the database is established. The optimal algorithm method is applied to the laser system in which it immediately approaches the power density range of laser with coating failed. Through the power meter detecting infrared beam reflective surface of the coating surface morphology of coatings,detection system obtains characteristic parameters;which will be compared with the failure database to arrive next point laser output power. Asymptotic approximation is used to determine the fact coating failure threshold and the design achieve intelligent discrete scratches.

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曹宇鹏, 冯爱新, 徐传超, 孙淮阳. 基于优选算法的界面结合强度激光离散划痕装置[J]. 中国激光, 2010, 37(8): 2160. Cao Yupeng, Feng Aixin, Xu Chuanchao, Sun Huaiyang. Device of the Laser Discrete Scratching for Test Interfacial Bonding Strength Based on Optimization Algorithm[J]. Chinese Journal of Lasers, 2010, 37(8): 2160.

基于优选算法的界面结合强度激光离散划痕装置

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