Effects of irradiation temperature on Ne ion irradiated binary nickel-based alloys. Issue 24 (16th December 2020)

• Record Type: Journal Article
• Authors: Cao, Mingpeng; Chen, Huaican; Zhang, Wei; Ming, Tang; Wang, Yongqiang; Yan, Long
• Is Part Of: Philosophical magazine. Volume 100:Issue 24(2020)
• Page Start: 3061
• Page End: 3069
• Publication Date: 2020-12-16
• Subjects: Nickel-based alloy -- defect evolution -- transmission electron microscopy; Condensed matter -- Periodicals; Physics -- Periodicals; Matière condensée -- Périodiques; Physique -- Périodiques; 530.41
• DOI: 10.1080/14786435.2020.1804636
• Languages: English
• ISSNs: 1478-6435

Abstract

ABSTRACT: The evolution processes of the defects in Ni, Ni-Cr and Ni-Mo alloys under 400 keV Ne ion irradiation at different temperatures were investigated. At room temperature, the defect sizes are between 2 and 4 nm and defect densities are in the range of 1.24 × 10 15 –1.39 × 10 15 m −2 . With increasing irradiation temperature, the defect sizes become larger, and the defect densities decrease. Moreover, under irradiation at high temperature, Ni-Mo and Ni-Cr alloys show the higher defect densities and smaller defect sizes than Ni. These are ascribed to the pinning effects of solid solution elements on the ion irradiation-induced defects in the nickel-based alloys.