Investigation on the microstructure of W-coated low-activation alloy V-4Cr-4Ti

H. Watanabe, T. Tokunaga, N. Yoshida, T. Nagasaka, T. Muroga

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)


Microstructures of vacuum plasma sprayed (VPS) and brazed W on NIFS-HEAT-2 were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). During the VPS process, growth of grains perpendicular to the interface was prominent. The blocky Ti-oxides, which have a strong effect on the mechanical properties before and after irradiation, were dissolved in the interface region of NIFS-HEAT-2. Understanding the effect of heat treatment (namely, post-coating heat treatment) on W-coated materials is important to reduce the irradiation induced hardening effects on the materials. After a heat load of about 5 MW/m2 (∼16 cycles), the surface of VPS-W has a very fine rough structure but no prominent cracks due to thermal heat loads were detected.

ジャーナルJournal of Nuclear Materials
1-3 SUPPL.1
出版ステータス出版済み - 4月 10 2013

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 材料科学(全般)
  • 原子力エネルギーおよび原子力工学


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