Surface Cracking Behaviors of Ultra-Fine Grained Tungsten Under Edge Plasma Loading in the HT-7 Tokamak

被引：0
|
作者：
朱大焕 [1 ]
刘洋 [1 ]
陈俊凌 [1 ]
周张健 [2 ]
鄢容 [1 ]
机构：
[1] Institute of Plasma Physics,Chinese Academy of Sciences
[2] University of Science and Technology Beijing
来源：
Plasma Science and Technology | 2013年 / 06期
基金：
中国国家自然科学基金;
关键词：
ultra-fine grain tungsten; plasma facing materials; cracking behaviors; plasma irradiation;
D O I：
暂无
中图分类号：
TL631.24 [];
学科分类号：
082701 ;
摘要：
Tests of the candidate plasma facing materials(PFMs) used in experimental fusion devices are essential due to the direct influence of in-situ plasma loading.A type of ultrafine grained(UFG) tungsten sintered by resistance sintering under ultra-high pressure(RSUHP) method has been exposed in the edge plasma of the HT-7 tokamak to investigate its performance under plasma loading.Under cychc edge plasma loading,the UFG tungsten develops both macro and micro cracks.The macro cracks are attributed to the low temperature brittleness of the tungsten material itself,while the micro cracks are generated from local intense power flux deposition.
引用
收藏
页码：605 / 608
页数：4
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