We performed a systematic study of the deuterium retention in the tungsten heavy alloy W-2Ni-1Fe (HPM 1850 from HC Starck, Germany). Consisting of two different phases with generally two distinctly different heats of solution, such alloys represent a special class of materials with respect to hydrogen isotope transport and retention. Deuterium was implanted from a plasma with an energy of 38 eV D −1 at sample temperatures of 100 °C, 175 °C, and 250 °C in the fluence range 10 23 D m −2 to 4 × 10 25 D m −2 . For each combination of implantation temperature and fluence, two alloy samples were exposed together with one sample of bulk hot-rolled tungsten (from Plansee SE). The amount of retained deuterium was determined by thermal desorption with heating up to 850 °C for the alloy and 1050 °C for the bulk tungsten. The outgassed deuterium was detected by mass spectroscopy at the mass channels 3, 4, 19, and 20 corresponding to HD, D

中文翻译：

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钨重合金：就氢同位素保留而言，一种替代的面向等离子体的材料

我们对钨重合金W-2Ni-1Fe（德国HC Starck的HPM 1850）中的氘保留进行了系统的研究。由两个不同的相组成，通常具有两个明显不同的溶液热，这种合金在氢同位素的传输和保留方面代表一类特殊的材料。在10 23 D m -2到4×10 25 D m -2的注量范围内，在100°C，175°C和250°C的样品温度下，以38 eV D -1的能量从等离子体注入氘。 。对于注入温度和注量的每种组合，将两个合金样品与一个大块热轧钨（来自Plansee SE）一起暴露。通过热解吸测定保留的氘量，对于合金，加热到850°C，对主体钨加热到1050°C。