摘要
用高重复率钕玻璃激光器,对QT700-2进行了激光冲击强化处理,利用X-350A残余应力测试仪对QT700-2激光冲击强化区残余应力进行了测试,结果显示经激光冲击处理后试件表面具有较高的残余压应力,可达-200Mpa以上;分析了表面残余应力及沿层深方向残余应力的分布情况。对激光冲击强化处理技术的实际工程应用具有指导性意义。
QT700-2 has been shocked processing by Nd:Glass laser. Residual stress were measured by X-350A ray diffraction system, The results indicate that the maximal surface residual stress reached -200 Mpa or more in the strengthened region. Furthermore, the surface and the depeth Residual stress were analysised, which have guide meaning to the practical engineering applications of LSP technique.
出处
《应用激光》
CSCD
北大核心
2006年第3期157-159,162,共4页
Applied Laser
关键词
激光冲击强化
残余应力
X射线衍射
Laser Shock Processing Residual stress X-ray diffraction