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Determination of the Terminal Solid Solubility of Hydrogen in Zirconium at Low Hydrogen Concentrations

机译:低氢浓度下锆中氢的末端固体溶解度的测定

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The terminal solid solubility of hydrogen in zirconium has been investigated for hydrogen concentrations from 8 to 230 mu g/g. Both optical metallography and internal friction techniques were employed. Although internal friction was found unsuitable for measuring the terminal solubility at concentrations less than 30 mu g/g, metallography gave solvus values down to the lowest concentrations. The solvus determined using metallography was in general agreement with previous determinations at higher concentrations and their extrapolation to lower values. Based on electron microscope analysis of the hydrides, the solvus measured at hydrogen concentrations less than 25 mu g/g was determined to be that for the gamma hydride phase. (Atomindex citation 09:410543)

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