The effects of oversized solute addition on microstructural evolution in Fe-Cr-Ni alloys during electron irradiation

H. Watanabe; T. Muroga; N. Yoshida

doi:10.1016/S0022-3115(96)00415-1

The effects of oversized solute addition on microstructural evolution in Fe-Cr-Ni alloys during electron irradiation

H. Watanabe, T. Muroga, N. Yoshida

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Defect cluster formation under electron irradiation in an Fe-Cr-Ni austenitic pure ternary alloy and alloys containing over-sized solutes (niobium and titanium) has been investigated with a HVEM at temperatures between 293 K and 873 K. The interstitial loop density and its temperature dependence, which were drastically changed by small addition of sub-sized solute (P, Si and S), were not affected by titanium and niobium additions. Above 423 K, vacancy type defects clusters (loop and SFT) were formed in the pure ternary alloy along with interstitial loops. By niobium (titanium) additions, on the other hand, formation of a vacancy defect cluster below 450 K was strongly suppressed. These phenomena seemed to be due to the low and high binding energies of interstitial-solute and vacancy-solute, respectively.

Original language	English
Pages (from-to)	95-98
Number of pages	4
Journal	Journal of Nuclear Materials
Volume	239
Issue number	1-3
DOIs	https://doi.org/10.1016/S0022-3115(96)00415-1
Publication status	Published - Dec 1 1996

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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10.1016/S0022-3115(96)00415-1

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title = "The effects of oversized solute addition on microstructural evolution in Fe-Cr-Ni alloys during electron irradiation",

abstract = "Defect cluster formation under electron irradiation in an Fe-Cr-Ni austenitic pure ternary alloy and alloys containing over-sized solutes (niobium and titanium) has been investigated with a HVEM at temperatures between 293 K and 873 K. The interstitial loop density and its temperature dependence, which were drastically changed by small addition of sub-sized solute (P, Si and S), were not affected by titanium and niobium additions. Above 423 K, vacancy type defects clusters (loop and SFT) were formed in the pure ternary alloy along with interstitial loops. By niobium (titanium) additions, on the other hand, formation of a vacancy defect cluster below 450 K was strongly suppressed. These phenomena seemed to be due to the low and high binding energies of interstitial-solute and vacancy-solute, respectively.",

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T1 - The effects of oversized solute addition on microstructural evolution in Fe-Cr-Ni alloys during electron irradiation

AU - Watanabe, H.

AU - Muroga, T.

AU - Yoshida, N.

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N2 - Defect cluster formation under electron irradiation in an Fe-Cr-Ni austenitic pure ternary alloy and alloys containing over-sized solutes (niobium and titanium) has been investigated with a HVEM at temperatures between 293 K and 873 K. The interstitial loop density and its temperature dependence, which were drastically changed by small addition of sub-sized solute (P, Si and S), were not affected by titanium and niobium additions. Above 423 K, vacancy type defects clusters (loop and SFT) were formed in the pure ternary alloy along with interstitial loops. By niobium (titanium) additions, on the other hand, formation of a vacancy defect cluster below 450 K was strongly suppressed. These phenomena seemed to be due to the low and high binding energies of interstitial-solute and vacancy-solute, respectively.

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