Determination of Aluminum in Nickel-Based Superalloys by Using Laser-Induced Breakdown Spectroscopy

(整期优先)网络出版时间:2011-04-14
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Laser-inducedbreakdownspectroscopy(LIBS)wasdevelopedtodetectaluminuminnickel-basedsuperalloys(K417,GH4033,DZ125L,(?)742y)usinganon-intensified,non-gated,low-costdetectionsystem.TheprecisionofLIBSdependsstronglyontheexperimentalconditions.ThecalibrationcurvesofA1(I)394.4nmandA1(I)396.2nmundertheoptimumexperimentalparametersarepresented.Finallythelimitofdetection(LOD)foraluminumiscalculatedfromtheexperimentaldata,whichisintherangeof0.09%to0.1%byweight.