文摘Anewtechnology──lasershockprocessing(LSP)forimprovingthemechanicalpropertiesofmetals,especiallyfatiguelife,ispresented.Themechanismofstresswavegeneratedbylasershockingisdescribed,andthestresswaveismeasuredwithPVDFtransducer.Ahigh-powerdensity,neodyrnium-glasslaserwasusedforshockingaluminumalloy,thefatiguelifeofaluminumalloywasincreasedgreatly.With95%confidence,thefatiguelifeofLSPspecimensis5.4to14.5timeslongerthantheunshockedSpecimensLaser s