Refining performance of Al-3Ti-0.2C-5Sr on A356 alloy and electron microanalysis of ternary Al-Ti-Sr phases-中国期刊网

摘要 TheeffectofAl-3Ti-0.2C-5Sr(wt%)grainrefinerontherefiningperformanceandmodificationofA356alloywasinvestigatedusingopticalmicroscope(OM).ThemorphologyandcrystalstructureofternaryAl-Ti-SrphasesinAl-3Ti-0.2C-5Srrefinerwereanalyzedbyscanningelectronmicroscopy(SEM)andtransmissionelectronmicroscopy(TEM).TheresultsshowthattheternaryAl-TiSrphasesinAl-3Ti-0.2C-5SrrefinercanpromotethegrainrefiningefficiencyofA356alloy.TheternaryAl-Ti-Srphasesco-existintwomorphologies,i.e.,blocky-likephaseandsurround-likephase,besides,whichbothhavethesamechemicalcompositionofAl_(34)Ti_3Sr.ThecrystalstructureofAl_(34)Ti_3Srisface-centeredcubic,andthelatticeparameterisdeterminedtobeabout1.52nm.

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Refining performance of Al-3Ti-0.2C-5Sr on A356 alloy and electron microanalysis of ternary Al-Ti-Sr phases

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Refining performance of Al-3Ti-0.2C-5Sr on A356 alloy and electron microanalysis of ternary Al-Ti-Sr phases

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