Orientation-dependent ion-irradiation responses in molybdenum and molybdenum-rhenium alloys

Hailong Xu; Li Huang; Wen Zhang; Jing Liang; Xiaohui Lin; Xuanqiao Gao; Yanchao Li; Jianfeng Li

doi:10.1016/j.matlet.2024.136317

Orientation-dependent ion-irradiation responses in molybdenum and molybdenum-rhenium alloys

Hailong Xu, Li Huang, Wen Zhang, Jing Liang, Xiaohui Lin, Xuanqiao Gao, Yanchao Li, Jianfeng Li

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

2 Scopus citations

Abstract

Helium ion-irradiation responses in molybdenum (Mo) and molybdenum-rhenium (Mo-Re) alloys at room temperature were evaluated via micro-pillar compression. Irradiation-induced hardening is closely dependent on orientation in Mo-Re alloys with low Re content, while is weak orientation-dependence on high Re alloys. Irradiated pillars with [1 0 0] orientation all shows higher flow stresses than pillars with [1 1 0] orientation after yield, which is distinguishing from pillars before irradiation that has been shown in our previous work. High density of dislocation loops and helium bubbles after irradiation at room temperature induces severe hardening in Mo. Voids / small loops induced by irradiation lead to less hardening in Mo-Re alloy than in Mo. No precipitation is observed in all samples, which may be attributed to low irradiated temperature and implantation energy.

Original language	English
Article number	136317
Journal	Materials Letters
Volume	363
DOIs	https://doi.org/10.1016/j.matlet.2024.136317
State	Published - 15 May 2024
Externally published	Yes

Keywords

Ion irradiation
Microstructure
Molybdenum-Rhenium alloys
Nuclear materials
Orientation-dependent
Pillar compression

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10.1016/j.matlet.2024.136317

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title = "Orientation-dependent ion-irradiation responses in molybdenum and molybdenum-rhenium alloys",

abstract = "Helium ion-irradiation responses in molybdenum (Mo) and molybdenum-rhenium (Mo-Re) alloys at room temperature were evaluated via micro-pillar compression. Irradiation-induced hardening is closely dependent on orientation in Mo-Re alloys with low Re content, while is weak orientation-dependence on high Re alloys. Irradiated pillars with [1 0 0] orientation all shows higher flow stresses than pillars with [1 1 0] orientation after yield, which is distinguishing from pillars before irradiation that has been shown in our previous work. High density of dislocation loops and helium bubbles after irradiation at room temperature induces severe hardening in Mo. Voids / small loops induced by irradiation lead to less hardening in Mo-Re alloy than in Mo. No precipitation is observed in all samples, which may be attributed to low irradiated temperature and implantation energy.",

keywords = "Ion irradiation, Microstructure, Molybdenum-Rhenium alloys, Nuclear materials, Orientation-dependent, Pillar compression",

author = "Hailong Xu and Li Huang and Wen Zhang and Jing Liang and Xiaohui Lin and Xuanqiao Gao and Yanchao Li and Jianfeng Li",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2024",

month = may,

day = "15",

doi = "10.1016/j.matlet.2024.136317",

language = "英语",

volume = "363",

journal = "Materials Letters",

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TY - JOUR

T1 - Orientation-dependent ion-irradiation responses in molybdenum and molybdenum-rhenium alloys

AU - Xu, Hailong

AU - Huang, Li

AU - Zhang, Wen

AU - Liang, Jing

AU - Lin, Xiaohui

AU - Gao, Xuanqiao

AU - Li, Yanchao

AU - Li, Jianfeng

PY - 2024/5/15

Y1 - 2024/5/15

N2 - Helium ion-irradiation responses in molybdenum (Mo) and molybdenum-rhenium (Mo-Re) alloys at room temperature were evaluated via micro-pillar compression. Irradiation-induced hardening is closely dependent on orientation in Mo-Re alloys with low Re content, while is weak orientation-dependence on high Re alloys. Irradiated pillars with [1 0 0] orientation all shows higher flow stresses than pillars with [1 1 0] orientation after yield, which is distinguishing from pillars before irradiation that has been shown in our previous work. High density of dislocation loops and helium bubbles after irradiation at room temperature induces severe hardening in Mo. Voids / small loops induced by irradiation lead to less hardening in Mo-Re alloy than in Mo. No precipitation is observed in all samples, which may be attributed to low irradiated temperature and implantation energy.

AB - Helium ion-irradiation responses in molybdenum (Mo) and molybdenum-rhenium (Mo-Re) alloys at room temperature were evaluated via micro-pillar compression. Irradiation-induced hardening is closely dependent on orientation in Mo-Re alloys with low Re content, while is weak orientation-dependence on high Re alloys. Irradiated pillars with [1 0 0] orientation all shows higher flow stresses than pillars with [1 1 0] orientation after yield, which is distinguishing from pillars before irradiation that has been shown in our previous work. High density of dislocation loops and helium bubbles after irradiation at room temperature induces severe hardening in Mo. Voids / small loops induced by irradiation lead to less hardening in Mo-Re alloy than in Mo. No precipitation is observed in all samples, which may be attributed to low irradiated temperature and implantation energy.

KW - Ion irradiation

KW - Microstructure

KW - Molybdenum-Rhenium alloys

KW - Nuclear materials

KW - Orientation-dependent

KW - Pillar compression

UR - http://www.scopus.com/inward/record.url?scp=85188028627&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2024.136317

DO - 10.1016/j.matlet.2024.136317

M3 - 文章

AN - SCOPUS:85188028627

SN - 0167-577X

VL - 363

JO - Materials Letters

JF - Materials Letters

M1 - 136317

ER -

Orientation-dependent ion-irradiation responses in molybdenum and molybdenum-rhenium alloys

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Keywords

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