江苏大学学报（自然科学版）2013，Vol.34Issue(2)：206-211,6.DOI:10.3969/j.issn.1671-7775.2013.02.015
激光毛化及该区域材料的力学性能试验
Experiment of laser texturing process and mechanical properties of textures
摘要
Abstract
To investigate the influences of laser parameters and supplementary process parameters on the texture profiles, and determine the mechanical properties of the textured points, the system matching experiments of laser pulse parameters were conducted. Three textures with crater shape, sombrero shape and W-type donut shape were obtained by different parameter combinations. The effects of type, pressure and angle of aid gas and laser pulse frequency on the textured topography dimensions of the sombrero shape were discussed. The microstructure and the hardness of crater shape textured topography were also investigated. The results show that the shape and the dimension of textured topography can be controlled by laser parameters and supplementary process parameters. Oxygen is not favorable for the formation of sombrero shape topography, while nitrogen is not favorable for the formation of crater shape topography. The microstructure of the textured points is acicular martensite. Compared with matrix material, the hardness of textured points has been increased 3 times.关键词
金相组织/激光毛化/工艺参数/毛化形貌/显微硬度Key words
microstructure/ laser texturing/ process parameter/ textured topography/ microhardness分类
信息技术与安全科学引用本文复制引用
符永宏,符昊,许华,王忠领,杨守军..激光毛化及该区域材料的力学性能试验[J].江苏大学学报（自然科学版）,2013,34(2):206-211,6.基金项目
2012年国家重大科技成果转化项目(2060403) （2060403）
国家自然科学基金资助项目(51175233) （51175233）
江苏省科技支撑计划项目(BE2010060) （BE2010060）
江苏省科技成果转化专项基金资助项目(BA2010068) （BA2010068）
江苏省高校科研成果产业化推进项目(JHB2011-39) （JHB2011-39）
常州市科技支撑计划项目(CE20110041) （CE20110041）
江苏省"六大人才高峰"项目(08-B-04) （08-B-04）
