The effect of injected interstitials on void formation in self-ion irradiated nickel containing concentrated solid solution alloys

JOURNAL OF NUCLEAR MATERIALS

卷:488

Article

Yang, Tai-ni¹  Lu, Chenyang¹  Jin, Ke²  Crespillo, Miguel L.³  Zhang, Yanwen^2,3  Bei, Hongbin²  Wang, Lumin^1,4 

[1] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA

[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[4] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

关键词: Injected interstitials;    Irradiation effects;    Ni containing concentrated solid solution alloys;    Void swelling;   

DOI  :  10.1016/j.jnucmat.2017.02.026

来源: Elsevier

【 摘 要 】

Pure nickel and three nickel containing single-phase concentrated solid solution alloys (SP-CSAs) have been irradiated using 3 MeV Ni2+ ions at 500 degrees C to fluences of 1.5 x 10(16) and 5.0 x 10(16)cm(-2). The radiation-induced voids were characterized using cross sectional transmission electron microscopy that distributions of voids and dislocation loops were presented as a function of depth. A various degree of void suppression was observed on the tested samples and a defect clusters migration mechanism was proposed for NiCo. In order to sufficiently understand the defect dynamics in these SP-CSAs, the injected interstitial effect has been taken into account along with the 1-dimentional (1-D) and 3-dimentional (3-D) interstitial movement mechanisms. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free