简介：TheagingbehaviorsofirradiatedtungstenbyhighenergySi3＋andH＋ionsaremainlyinvestigatedusinginternalfriction（IF）methodcombinedwithSEMtechnology.TheSEManalysisindicatesthatmoresevereirradiationdamageappearsinthesurfaceofsimultaneousdualSi3＋H＋irradiatedspecimenthanthatinthesequentialdualSi3＋H＋irradiatedspecimenorthesingleSi3＋irradiatedspecimensbecauseofthesynergisticeffectofSiandHirradiation.TheIFbackgroundoftheirradiatedsampleisaboutoneorderofmagnitudehigherthanthatoftheunirradiatedsampleowingtotheexistenceofhighdensityfreshdislocationsinducedbySi/Hirradiation,InthesequentialdualSi3＋andH＋irradiatedspecimen,thehydrogenSnoek-Ke-Koster（SKK）peakassociatedwiththemovementofdislocationsdragginghydrogenatomsisobservedanditsheightdecreaseswithagingtimeatroomtemperature.AsforthesimultaneousdualSi3＋H＋irradiatedspecimen,however,thereisnosuchhydrogenSKKpeak.Thereasoncanbeexplainedashydrogendiffusionandpinningeffectofdislocations.