SIA OpenIR  > 智能产线与系统研究室
Alternative TitleEffect of Laser Peening on Mechanical Properties of 6082 Aluminum Alloy
Source Publication激光与光电子学进展
Indexed ByCSCD
Contribution Rank1
Funding Organization国家863计划(2012AA041310)
Keyword激光器 激光冲击强化 铝合金 显微硬度 微结构 残余应力
Abstract为研究激光冲击强化对6082铝合金性能的影响,利用波长为1064 nm、脉宽为15 ns、脉冲能量为08 J的Nd∶YAG激光器对6082铝合金进行工艺试验研究,采用表面粗糙度仪、显微硬度计、X射线应力分析仪和疲劳试验机分别对试件的表面粗糙度、显微硬度、残余应力和疲劳寿命进行测量。实验结果表明:激光能量为7 J,冲击4次时,在试件表面引入了坑穴和褶皱等微结构,使得表面形貌高低不平,粗糙度提高了2倍左右,使得表层材料发生塑性变形以及加工硬化,表面显微硬度提高了43%左右,最大残余压应力达-261 MPa,硬化层深度达700 mm左右,疲劳寿命提高了6.8倍左右,即激光冲击强化能够极大地改善60...
Other AbstractIn order to study the effects of laser peening on properties of 6082 aluminum alloy, 6082 aluminum alloy coupons are treated by Nd∶YAG laser system with the wavelength of 1064 nm, pulse width of 15 ns and pulse energy of 08 J. Surface roughness, micro- hardness, residual stress and fatigue life with different laser peening parameters are tested by roughness tester, micro- hardness tester, X- ray diffraction machine and fatigue machine, respectively. The experimental results show that the generated pits and microstructures make the surface uneven, surface roughness increasing about 2 times, also plastic deformation and hardening layer are induced, surface micro- hardness increasing up to about 43% , max compressive residual stress increasing up to - 261 MPa , depth of hardened layer being about 700 mm, and the fatigue life increasing about 6.8 times with the laser energy of 7 J and shock impact times of 4. So laser peening can improve properties of 6082 aluminum alloy significantly.
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
乔红超. 激光冲击强化对6082铝合金机械性能的影响[J]. 激光与光电子学进展,2015,52(6):166-172.
APA 乔红超.(2015).激光冲击强化对6082铝合金机械性能的影响.激光与光电子学进展,52(6),166-172.
MLA 乔红超."激光冲击强化对6082铝合金机械性能的影响".激光与光电子学进展 52.6(2015):166-172.
Files in This Item: Download All
File Name/Size DocType Version Access License
激光冲击强化对6082铝合金机械性能的影(1515KB)期刊论文出版稿开放获取ODC PDDLView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[乔红超]'s Articles
Baidu academic
Similar articles in Baidu academic
[乔红超]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[乔红超]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 激光冲击强化对6082铝合金机械性能的影响.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.