he principle and optional conditions of inert gas fusion (impulse heating) method for determination of hydrogen with Sn-flux are described. The results show that the method for determinating hydrogen in Ti. Zr. Hf. Ta. Nb and their alloys is accurate. The POwer for analysing are 2500W for Ti. Zr and Hf and 2700-2800W for Ta and Nb. The heating-times are 30s for Ti. Zr and Hf and 40s for Ta and Nb, respectively.
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张之翔.稀有难熔金属中氢的测定[J].稀有金属材料与工程,1995,(2):60~65.[Zhang Zhixiang. Determination of Hydrogen in Rare and Refractory Metals[J]. Rare Metal Materials and Engineering,1995,(2):60~65.] DOI：[doi]