Distinct ion irradiation response in VTaTi medium entropy alloy from elemental metal V

L. Mei; Q. Zhang; Y. Dou; E. G. Fu; L. Li; S. Chen; Y. Dong; X. Guo; X. He; W. Yang; Y. Xue; K. Jin

doi:10.1016/j.scriptamat.2022.115070

Distinct ion irradiation response in VTaTi medium entropy alloy from elemental metal V

L. Mei, Q. Zhang, Y. Dou, E. G. Fu, L. Li, S. Chen, Y. Dong, X. Guo, X. He, W. Yang, Y. Xue, K. Jin^*

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

The microstructural and mechanical property changes induced by 6 MeV titanium ion irradiation are comparatively investigated between a refractory medium-entropy alloy VTaTi and elemental metal V. Compared with V, the aggregation of irradiation induced defect clusters in VTaTi is strongly suppressed, as evidenced by the much smaller defect size. Moreover, the loops in VTaTi are dominantly <100>-type, in contrast to those in elemental metal V being mainly 1/2<111>-type. Furthermore, nanoindentation tests show that the irradiation hardening in VTaTi is significantly weaker than V, further demonstrating its improved irradiation resistance.

Original language	English
Article number	115070
Journal	Scripta Materialia
Volume	223
DOIs	https://doi.org/10.1016/j.scriptamat.2022.115070
Publication status	Published - 15 Jan 2023

Keywords

Dislocation loop
Ion irraditaion
Medium entropy alloy
Nanoindentation

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10.1016/j.scriptamat.2022.115070

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title = "Distinct ion irradiation response in VTaTi medium entropy alloy from elemental metal V",

abstract = "The microstructural and mechanical property changes induced by 6 MeV titanium ion irradiation are comparatively investigated between a refractory medium-entropy alloy VTaTi and elemental metal V. Compared with V, the aggregation of irradiation induced defect clusters in VTaTi is strongly suppressed, as evidenced by the much smaller defect size. Moreover, the loops in VTaTi are dominantly <100>-type, in contrast to those in elemental metal V being mainly 1/2<111>-type. Furthermore, nanoindentation tests show that the irradiation hardening in VTaTi is significantly weaker than V, further demonstrating its improved irradiation resistance.",

keywords = "Dislocation loop, Ion irraditaion, Medium entropy alloy, Nanoindentation",

author = "L. Mei and Q. Zhang and Y. Dou and Fu, {E. G.} and L. Li and S. Chen and Y. Dong and X. Guo and X. He and W. Yang and Y. Xue and K. Jin",

note = "Publisher Copyright: {\textcopyright} 2022 Acta Materialia Inc.",

year = "2023",

month = jan,

day = "15",

doi = "10.1016/j.scriptamat.2022.115070",

language = "English",

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TY - JOUR

T1 - Distinct ion irradiation response in VTaTi medium entropy alloy from elemental metal V

AU - Mei, L.

AU - Zhang, Q.

AU - Dou, Y.

AU - Fu, E. G.

AU - Li, L.

AU - Chen, S.

AU - Dong, Y.

AU - Guo, X.

AU - He, X.

AU - Yang, W.

AU - Xue, Y.

AU - Jin, K.

PY - 2023/1/15

Y1 - 2023/1/15

N2 - The microstructural and mechanical property changes induced by 6 MeV titanium ion irradiation are comparatively investigated between a refractory medium-entropy alloy VTaTi and elemental metal V. Compared with V, the aggregation of irradiation induced defect clusters in VTaTi is strongly suppressed, as evidenced by the much smaller defect size. Moreover, the loops in VTaTi are dominantly <100>-type, in contrast to those in elemental metal V being mainly 1/2<111>-type. Furthermore, nanoindentation tests show that the irradiation hardening in VTaTi is significantly weaker than V, further demonstrating its improved irradiation resistance.

AB - The microstructural and mechanical property changes induced by 6 MeV titanium ion irradiation are comparatively investigated between a refractory medium-entropy alloy VTaTi and elemental metal V. Compared with V, the aggregation of irradiation induced defect clusters in VTaTi is strongly suppressed, as evidenced by the much smaller defect size. Moreover, the loops in VTaTi are dominantly <100>-type, in contrast to those in elemental metal V being mainly 1/2<111>-type. Furthermore, nanoindentation tests show that the irradiation hardening in VTaTi is significantly weaker than V, further demonstrating its improved irradiation resistance.

KW - Dislocation loop

KW - Ion irraditaion

KW - Medium entropy alloy

KW - Nanoindentation

UR - http://www.scopus.com/inward/record.url?scp=85138836127&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2022.115070

DO - 10.1016/j.scriptamat.2022.115070

M3 - Article

AN - SCOPUS:85138836127

SN - 1359-6462

VL - 223

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 115070

ER -

Distinct ion irradiation response in VTaTi medium entropy alloy from elemental metal V

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Keywords

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