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The combined utilization of an X-ray diffractometer and a high temperature chamber is used for the direct observation of phase transformations, changes in lattice imperfections, chemistry and the structure of the phases of a high speed steel powder. M 6 C-carbides are at first suppressed for the high cooling rates during atomization and only MC-carbides are detected at room temperature. The...
The local elemental composition and morphology of stainless steel surfaces before and after high-temperature bake out (vacuum firing) has been investigated by atom probe (AP) and scanning tunnelling microscopy (STM). The AP depth profiling analysis show significant surface enrichment of nickel after vacuum firing. The surface of AISI 304L stainless steel sheet samples imaged by STM show a significant...
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