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首页> 外文期刊>Plasma and Fusion Research >Hydrogen Gas-Driven Permeation through F82H Steel Coated with Vacuum Plasma-Sprayed Tungsten
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Hydrogen Gas-Driven Permeation through F82H Steel Coated with Vacuum Plasma-Sprayed Tungsten

机译：通过F82H钢涂覆真空等离子体喷涂钨的氢气驱动渗透

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The subject of hydrogen isotopes transport through tungsten coated reduced activation ferritic steels such as F82H has attracted increasing interest in the fusion engineering research community. This paper reports on laboratory-scale studies that have been done to assess the hydrogen permeation properties of vacuum plasma-sprayed tungsten (VPS-W) coatings at the temperature range of 200 - 500 ?C. W coatings with thicknesses of 46 μm and 90 μm have been investigated. It has been found that the observed permeation rates through composite VPS-W/F82H specimen are reduced to ～7% compared to that of pure F82H. VPS-W coating is porous and has an open system of connected pores, which density is evaluated to be ～7%. The main effect of the W coating on hydrogen permeation is to reduce the incoming flux at the W/F82H interface owing to pore diffusion in the coating and to reduce the effective surface area for hydrogen dissolution in the substrate.
机译：氢同位素通过钨涂覆的掺杂活化铁素体钢等主体，如F82h吸引了融合工程研究界的越来越兴趣。本文报告了已经进行的实验室规模研究，以评估真空等离子体喷涂钨（VPS-W）涂层的氢渗透性能在200 - 500 β-℃的温度范围内。研究了厚度为46μm和90μm的W涂层。已经发现，与纯F82H相比，通过复合VPS-W / F82H样品的观察到的渗透速率降至约7％。 VPS-W涂层是多孔的，具有连接孔的开放系统，密度评价为约7％。 W涂层对氢渗透的主要效果是由于涂层中的孔扩散并减少基材中的氢溶解的有效表面积，以减少W / F82H界面处的进入助焊剂。

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