Thermal change of microstructure and mechanical properties of dispersion strengthened tungsten

Thermal change of microstructure and mechanical properties of dispersion strengthened tungsten
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弥散强化钨的显微组织和力学性能的热变化

DOI:
10.1088/1741-4326/ac233d
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发表时间:
2021
期刊:
影响因子:
3.3
通讯作者:
Tanaka T.
Tanaka T.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Noto H.;Hishinuma Y.;Muroga T.;Tanaka T.

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采用机械合金化-热等静压方法,研制了一种晶界含TiO 2颗粒的新型弥散强化钨(DS W)合金,用于改进聚变堆偏滤器组件的面向等离子体材料。本文研究了弥散强化对合金组织热变化和高温热导率的影响。与纯钨相比,高温退火后,DS-W的显微组织没有明显变化,抗弯强度也没有明显下降。
Using a mechanical alloying-hot isostatic pressing method, new dispersion strengthened tungsten (DS-W) alloys containing TiO 2 particles on grain boundaries have been developed for improvement of plasma facing materials for divertor components of fusion reactors. In this study, effects of the dispersion strengthening on the thermal change of microstructure and the thermal conductivity at high temperature were investigated. Within contrast to pure tungsten, the DS-W did not show significant microstructural change or a drastic decrease of the bending strength after annealing at high temperature.
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影响因子: 0.8
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