Hydrogen traps in the oxide-alloy interface region of ZrNb alloys
Hydrogen traps in the oxide-alloy interface region of ZrNb alloys
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ZrNb 合金氧化物-合金界面区域的氢陷阱
DOI：
10.1016/0925-8388(95)01760-7
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
D. Khatamian
中科院分区：
文献类型：
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作者：
D. Khatamian
本研究采用1h (15N, αγ)12C核反应测定了含不同铌量的阳极氧化ZrNb试样的氢谱。利用扫描俄歇微探针（SAM）和x射线衍射图，将这些剖面与氧剖面相关联。此外，将未氧化的Zr-2.5Nb （Zr-2.5 wt.% Nb）样品注入氧和氢，研究这两种物质在合金中溶解时的相互作用。除纯Zr和单相β-Zr （Zr- 20nb）样品外，所有阳极氧化样品的氧化层下方均出现氢峰。这些结果与植入样品的结果相结合，表明氢在应力梯度的影响下移动到亚氧化区，在那里金属晶格由于表面氧化生长而膨胀。结果表明：Zr-2.5Nb合金中的溶解氧位点不捕氢；
In this study the1H(15N, αγ)12C nuclear reaction has been used to measure hydrogen profiles of anodically oxidized ZrNb specimens containing various amounts of niobium. The profiles have been correlated with oxygen profiles, obtained using a Scanning Auger Microprobe (SAM), and with X-ray diffraction patterns. In addition, unoxidized Zr-2.5Nb (Zr-2.5 wt.% Nb) samples were implanted with oxygen and hydrogen to study the interaction between these two species when dissolved in the alloy. All the anodically oxidized specimens, except the pure Zr and the single-phase β-Zr (Zr-20Nb) samples, displayed hydrogen peaks beneath the oxide layer. These results, in conjunction with the results from the implanted specimens, indicate that the hydrogen moves under the influence of a stress gradient to the sub-oxide region, where the metal lattice has been expanded due to superficial oxide growth. The results show that dissolved oxygen sites in Zr-2.5Nb alloy do not trap hydrogen.