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Preparation of cross sections of thin‐coated sheet steel for analytical electron microscopy observation

1987; Wiley; Volume: 5; Issue: 3 Linguagem: Inglês

10.1002/jemt.1060050302

1553-0817

J. H. Selverian, Arnold R. Marder, Michael R. Notis,

Surface Roughness and Optical Measurements

Abstract A method of preparing thinned cross sections of coated sheet steel (Galvalume) for observation in an analytical electron microscope (AEM) was developed. Steel panels dipped for 4 sec in baths of 55% by weight (wt pct) Al‐1.7 wt pct Si‐balance Zn, and 55 wt pct Al‐6.88 wt pct Si‐balance Zn at 610°C were examined. The ratio of the intensity of the K and L x‐ray lines from the same element was used in determining the foil thickness. The AEM results compared favorably to results obtained using electron microprobe analysis (EMPA).