应用激光, 2019, 39 (6): 1018, 网络出版: 2020-03-10  

能量密度对建筑用316L不锈钢表面激光辐照SiC颗粒组织的影响

Effect of Energy Density on Organization of SiC Particles on 316L Stainless Steel Surface for Building
韩超 1,*李亚 2
作者单位
1 河南建筑职业技术学院土木工程系, 河南 郑州 450064
2 浙江工业职业技术学院机械工程系, 浙江 绍兴 312000
摘要
对高层建筑用316L不锈钢表面激光辐照SiC颗粒进行激光辐照, 并展开相关的实验测试分析。研究结果表明: 经过激光辐照处理后, 试样的粒径发生了显著增大的现象, 部分颗粒产生团聚。随着激光能量密度上升至 8 kJ/cm2之后, 在块状表面形成了放射状的能量分布状态, 同时在原位形成了众多颗粒。6~8 kJ/cm2的激光能量密度时SiC 颗粒表面形成了众多细线状产物。随着激光能量密度到达4 kJ/cm2时试样形成了非晶结构, 组织粒径尺寸约为10 nm。当激光能量 密度达到6 kJ/cm2与8 kJ/cm2时形成了许多纳米线, 粒径介于 5~10 nm之间。经过激光辐照处理后, 试样内形成了 α-SiC以及部分 C 元素。
Abstract
the SiC particles irradiated by laser on the surface of 316L stainless steel used in high-rise buildings were studied. The results showed that after laser irradiation, the particle size of the sample increased significantly and some particles agglomerated.As the laser energy density rises to 8 kJ/cm2, a radial energy distribution state is formed on the block surface, and many particles are formed in situ. At the laser energy density of 6~8 kJ/cm2, many fine linear products were formed on the surface of SiC particles. When the laser energy density reaches 4 kJ/cm2, the sample forms an amorphous structure with a grain size of about 10 nm. When the laser energy density reaches 6 kJ/cm2 and 8 kJ/cm2, many nanowires are formed with particle sizes ranging from 5 to 10nm.After laser irradiation, SiC and some C elements were formed.

韩超, 李亚. 能量密度对建筑用316L不锈钢表面激光辐照SiC颗粒组织的影响[J]. 应用激光, 2019, 39(6): 1018. Han Chao, Li Ya. Effect of Energy Density on Organization of SiC Particles on 316L Stainless Steel Surface for Building[J]. APPLIED LASER, 2019, 39(6): 1018.

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