Identification of Phases in Aluminide Coatings by Means of Interference Layer Metallography
来源期刊:JOURNAL OF MATERIALS SCIENCE TECHNOLOG1989年第5期
论文作者:吴维叟
文章页码:339 - 345
摘 要:<正> Interference layer metallography was usedto identify the phases present in the aluminidecoating on superalloy IN738LC. They are: twointermetallic aluminides NiAl and Ni3Al, y-solidsolution and a Cr-rich solid solution, twosulphides M23C6 and MC, and two sulphides(Al,Cr)3S4 and (Cr,Ti)3S4. ZnS and ZnSe areproposed to be vapor deposited onto the surfaceof the specimen to get good colour contrastand good light-dark contrast. The refractiveindex and absorption coefficient of all thesephases have been detemined.
吴维叟
摘 要:<正> Interference layer metallography was usedto identify the phases present in the aluminidecoating on superalloy IN738LC. They are: twointermetallic aluminides NiAl and Ni3Al, y-solidsolution and a Cr-rich solid solution, twosulphides M23C6 and MC, and two sulphides(Al,Cr)3S4 and (Cr,Ti)3S4. ZnS and ZnSe areproposed to be vapor deposited onto the surfaceof the specimen to get good colour contrastand good light-dark contrast. The refractiveindex and absorption coefficient of all thesephases have been detemined.
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