光学精密工程2025，Vol.33Issue(6)：874-883,10.DOI:10.37188/OPE.20253306.0874
1 μm高功率连续激光对不锈钢辐照毁伤特性
Radiation damage characteristics of stainless steel by 1 μm high power continuous laser
摘要
Abstract
Through a series of simulation and experimental observation,the damage process of 1 μm high power continuous laser on 304 stainless steel was deeply analyzed,and the influence of different power density,material thickness and thermal coupling on the material burn-through time and its change rule were emphatically discussed.The results show that with the increase of stainless steel thickness,the influ-ence of thermal stress and temperature gradient on material deformation and crack formation is intensified,resulting in the increase of laser power density and time required for penetration.The contribution of ther-mal stress further accelerates the failure process of the material,especially at higher power density,ther-mal deformation and stress concentration significantly affect the mechanical properties of the material.As a result,there are significant differences in the penetration damage threshold of 304 stainless steel with a thickness of 0.5-2 mm under high power continuous laser irradiation.Finally,the functional relationship between laser irradiation time and material thickness and breakdown threshold is obtained through numeri-cal analysis and data fitting,so as to achieve quantitative evaluation of the penetration and damage charac-teristics of 304 stainless steel with high power continuous laser.关键词
连续激光/不锈钢/击穿阈值/毁伤效应Key words
continuous laser/stainless steel/breakdown threshold/damage effects分类
电子信息工程引用本文复制引用
王喜辉,刘骁征,张海涛,寇雨馨,孟阔..1 μm高功率连续激光对不锈钢辐照毁伤特性[J].光学精密工程,2025,33(6):874-883,10.基金项目
北京市自然科学基金(No.4184087) （No.4184087）
