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利用质子增强背散射 (EPBS)和X射线衍射 (XRD)等方法 ,对氘在 β相的Ti 3 2Mo 5Nb合金中的深度分布及Ti 3 2Mo 5Nb合金吸氘前后的相结构等进行了分析研究。结果表明 :该合金在低温阶段的吸氘速率明显高于纯钛 ,平均氘钛原子比高达 2 5 ,其中一部分氘与合金中的钛生成TiD1 971,另一部分氘则固溶在Ti 3 2Mo 5Nb合金中。
The depth distribution of deuterium in β-phase Ti 3 2Mo 5Nb alloy and phase structure of Ti 3 2Mo 5Nb alloy before and after deuterium absorption were studied by means of proton enhanced backscatter (EPBS) and X-ray diffraction (XRD) . The results show that the deuterium absorption rate of this alloy is obviously higher than that of pure titanium at low temperature. The average atomic ratio of deuterium to titanium is as high as 25, among which some deuterium and titanium in the alloy generate TiD1 971 and the other part forms solid solution in Ti 3 2Mo 5Nb Alloy.