Grain boundary cavities and cracks during high temperature irradiation embrittlement

Бородин, В. А.; Manichev, V.M.; Ryazanov, A. I.

doi:10.1016/0022-3115(92)90685-e

Cited by 5 publications

(1 citation statement)

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“…As one form of well-known radiation damage, high temperature He embrittlement in metals has attracted tremendous interests in past decades [140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163]. A very low overall helium concentration could significantly degenerate the mechanical properties of metals, leading to catastrophic fracture of nuclear reactor components [140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163]. Kramer et al [142] performed tensile tests on 304 SS after He implantation.…”

Section: Effect Of Helium Bubbles On Ductility Of Metalsmentioning

confidence: 99%

Radiation-Induced Helium Bubbles in Metals

Han

2019

Materials

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Helium (He) bubbles are typical radiation defects in structural materials in nuclear reactors after high dose energetic particle irradiation. In the past decades, extensive studies have been conducted to explore the dynamic evolution of He bubbles under various conditions and to investigate He-induced hardening and embrittlement. In this review, we summarize the current understanding of the behavior of He bubbles in metals; overview the mechanisms of He bubble nucleation, growth, and coarsening; introduce the latest methods of He control by using interfaces in nanocrystalline metals and metallic multilayers; analyze the effects of He bubbles on strength and ductility of metals; and point out some remaining questions related to He bubbles that are crucial for design of advanced radiation-tolerant materials.

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