Neutron irradiation and intergranular fracture in vanadium-20 wt% titanium alloys undoped and doped with phosphorus and sulfur

Kameda, J.; Bloomer, T. E.; Swanson, Ashley; Lyu, D.Y.

doi:10.1016/s0022-3115(97)00328-0

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…Similar behavior was observed in as-irradiated ferrous steel, 14 and V-20 wt.% Ti alloys. 15 There is an inverse correlation between segregated phosphorus and carbon for the thermally aged alloys due to site competition (Fig. 5).…”

Section: Intergranular Segregation and Hardening During Neutron Irradmentioning

confidence: 95%

Non‐equilibrium intergranular segregation and embrittlement in neutron‐irradiated ferritic alloys

Kameda

Nishiyama

Bloomer

2001

Surface & Interface Analysis

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This study describes intergranular segregation and embrittlement in several model ferritic alloys doped with Mn, P, S and/or Cu subjected to neutron irradiation, irradiation-equivalent thermal ageing (ETA) and post-irradiation annealing (PIA). Neutron irradiation produced a larger amount of intergranular phosphorus segregation than sulfur segregation. Irradiation-induced phosphorus segregation became more prominent with decreasing bulk phosphorus content. Intergranular carbon segregation remained small in all the as-irradiated alloys, which was enhanced by the ETA except for the high phosphoruscontaining alloy. A PIA study has shown that the phosphorus segregation in phosphorus-doped alloys subjected to lower temperature PIA proceeds via mobile phosphorus-interstitial complexes, whereas the sulfur segregation, which occurs over a wide PIA temperature range, is controlled by vacancyenhanced diffusion. The mechanisms of non-equilibrium intergranular segregation induced by neutron irradiation are discussed in light of coupled fluxes of point defects and impurities and changes in the segregation capacity of grain boundaries. Small punch tests demonstrated how the impurity segregation or desegregation and hardening or softening induced by the irradiation, ETA and PIA influence intergranular embrittlement in the various ferritic alloys.

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Section: Intergranular Segregation and Hardening During Neutron Irradmentioning

confidence: 95%

Non‐equilibrium intergranular segregation and embrittlement in neutron‐irradiated ferritic alloys

Kameda

Nishiyama

Bloomer

2001

Surface & Interface Analysis

Self Cite

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show abstract

Effect of interstitial impurities on grain boundary cohesive strength in vanadium

Zou

Zheng

Zhao

2015

Computational Materials Science

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Effect of oxygen and nitrogen on microstructure and mechanical properties of vanadium

Madakashira

Suh

et al. 2016

Materials Science and Engineering: A

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Neutron irradiation and intergranular fracture in vanadium-20 wt% titanium alloys undoped and doped with phosphorus and sulfur

Cited by 5 publications

References 17 publications

Non‐equilibrium intergranular segregation and embrittlement in neutron‐irradiated ferritic alloys

Non‐equilibrium intergranular segregation and embrittlement in neutron‐irradiated ferritic alloys

Effect of interstitial impurities on grain boundary cohesive strength in vanadium

Effect of oxygen and nitrogen on microstructure and mechanical properties of vanadium

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