| 激光冲击LY2铝合金的薄膜性能 |
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| 引用本文： | 罗开玉,鲁金忠,尹纯晶,钟俊伟,姚辉学,张永康.激光冲击LY2铝合金的薄膜性能[J].吉林大学学报(工学版),2010,40(2):467-0470. |
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| 作者姓名： | 罗开玉 鲁金忠 尹纯晶 钟俊伟 姚辉学 张永康 |
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| 作者单位： | 1. 江苏大学,光子制造科学与技术重点实验室,江苏,镇江,212013
2. 江苏大学,机械工程学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金项目(50705038，50735001)；高等学校博士学科点专项科研基金项目（20050299004）；江苏省“六大人才高峰”项目(06D023)；江苏大学第八批学生科研课题立项项目(08A199). |
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| 摘 要： | 脉冲激光冲击LY2铝合金,在试样表面形成约1.7mm的薄膜,研究了薄膜与基体接合处横截面的微观形貌以及激光冲击搭接率和激光冲击次数对薄膜层残余应力的影响。研究结果表明:激光冲击的光斑搭接率对试样横截面的残余应力影响显著;在薄膜层最大残余应力存在于试样的表层或者近表层,深度方向的残余应力值和残余压应力值变化率均与表层深度成反比;多次冲击能够获得较大的残余应力值,但对于激光冲击LY2铝合金薄膜深度影响较小。
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| 关 键 词： | 光电子与激光技术 激光冲击 残余应力 微观形貌 LY2铝合金 薄膜 |
| 收稿时间： | 2008-06-21 |
Properties of LY2 alloy film by laser shock processing |
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| LUO Kai-yu,LU Jin-zhong,YIN Chun-jing,ZHONG Jun-wei,YAO Hui-xue,ZHANG Yong-kang.Properties of LY2 alloy film by laser shock processing[J].Journal of Jilin University:Eng and Technol Ed,2010,40(2):467-0470. |
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| Authors: | LUO Kai-yu LU Jin-zhong YIN Chun-jing ZHONG Jun-wei YAO Hui-xue ZHANG Yong-kang |
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| Affiliation: | 1.Jiangsu Key Laboratory for Photon Manufacturing, Jiangsu University, Zhenjiang 212013, China;2.School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China |
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| Abstract: | LY2 aluminum alloy samples were processed by pulse laser shock to fabricate a film of 1.7 mm depth on the sample surface.The residual stresses in the directions parallel and perpendicular to the sample surface were measured using X-ray stress tester,and the micro-topography of the cross-section of the film was studied.Results show that the spot overlapping rate plays an important role in the distribution of surface residual stress.The maximum compressive residual stress is located in the surface or the near... |
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| Keywords: | optoelectronics and laser laser shock processing residual stress micro-topography LY2 alloy film |
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