摘要
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.
出版日期
2013年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)