METHOD FOR CREATING INTERGRANULAR FRECTURE

PURPOSE:To efficiently create an intergranular frecture in a sensitized material sample of an austenic Fe-Ni-Cr alloy to be used for Auger electronic spectroscopy, etc. CONSTITUTION:A low-speed tensile test piece made of the sample is used as a cathode, electrolyzed in 1N sulfuric acid contg. sodium...

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1. Verfasser: MORISAWA JUNICHIRO
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Sprache:eng
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Zusammenfassung:PURPOSE:To efficiently create an intergranular frecture in a sensitized material sample of an austenic Fe-Ni-Cr alloy to be used for Auger electronic spectroscopy, etc. CONSTITUTION:A low-speed tensile test piece made of the sample is used as a cathode, electrolyzed in 1N sulfuric acid contg. sodium arsenite and charged with hydrogen. The test piece is heated to discharge hydrogen, the process is repeated to accelerate intergranular embrittlement and then to break the teat piece, and an intergranular frecture is created. The intergranular frecture for the analysis is efficiently created by this method.