Effect of pre-injection thermo-mechanical treatment on helium embrittlement of Fe-(25–40)Ni-15Cr austenitic alloys

作者: H. Shiraishi , N. Yamamoto , H. Shinno , H. Yoshida , H. Kamitsubo

DOI: 10.1016/0022-3115(83)90223-4

关键词: MetallurgyHeliumAusteniteAlloyDuctilityElongationUltimate tensile strengthMaterials scienceEmbrittlementPrecipitation hardeningNuclear and High Energy PhysicsGeneral Materials ScienceNuclear Energy and Engineering

摘要: Abstract The effect of pre-injection treatments on helium embrittlement Fe-(25–40)Ni-Cr austenitic alloys with and without the addition Ti Nb was widely investigated using injection method a cyclotron. For precipitation hardened produced γ′-Ni 3 (Ti,Al) γ″-Ni Nb, total elongation injected materials rapidly decreased increase tensile strength. By comparing same alloy under various at strength level, treatments, such as cold work aging, were concluded to have beneficial ductility. non-hardenable alloys, degree is about order in 316 stainless steel Fe-25Ni-15Cr but increasing Ni content 35% caused more severe reduction for solution treated condition. ductility improving content.

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