Creep deformation and fracture of Ni-based alloy GH3535 in molten FLiNaK and Ar environment

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-03-31 DOI:10.1016/j.corsci.2025.112902

Xiaoli Li , Litao Chang , Wenjun Liang , Chengpeng Liu , Zhijun Li , Yumiao Wang , Bin Leng

引用次数: 0

Abstract

The creep deformation and fracture behavior of GH3535 alloy under varying stresses (190–270 MPa) in 700 °C molten FLiNaK salt and argon environments were systematically investigated. Under each experimental stress, specimens in molten FLiNaK salt exhibit lower fracture life and elongation compared to those in argon, with the disparity becoming more pronounced as the applied stress decreases. The alloy show a combination of ductile overload failure and intergranular fracture in both environments, whereas intergranular fracture is more pronounced in the molten salt environment. Notably, crack density and depth are greater in the molten salt environment due to its corrosive nature.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.