Study on corrosion fatigue of Ti-6Al-4V alloy under hydrostatic pressure environment in 3.5 % NaCl solution

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

Corrosion Science Pub Date : 2025-04-16 DOI:10.1016/j.corsci.2025.112950

Yue Jin , Rui Liu , Yu Cui , R.R.A. Garcia , O.R. Mattos , Fuhui Wang , Li Liu

引用次数: 0

Abstract

This study examines the dual-phase Ti-6Al-4V alloy through corrosion fatigue tests in 3.5 wt% NaCl solution under different hydrostatic pressures. The effects of hydrostatic pressure and cyclic loading on the passive film, microstructure, and mechanical properties of the titanium alloy were investigated. Findings reveal that synergic effect of hydrostatic pressure and cyclic mechanical load reduces the compactness of the titanium alloy passive film, inducing crack initiation and propagation, accelerating the fatigue crack propagation rate, and reducing the fatigue life of titanium alloy. This study reveals the corrosion fatigue mechanism of titanium alloys under hydrostatic pressure and cyclic loading, providing reference values for designing components in deep-sea environments.

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静水压环境下Ti-6Al-4V合金在3.5 % NaCl溶液中的腐蚀疲劳研究

采用不同静水压力下的3.5 wt% NaCl溶液，对双相Ti-6Al-4V合金进行了腐蚀疲劳试验。研究了静水压力和循环载荷对钛合金钝化膜、显微组织和力学性能的影响。结果表明：静水压力和循环机械载荷的协同作用降低了钛合金被动膜的致密性，诱发了裂纹的萌生和扩展，加速了疲劳裂纹扩展速率，降低了钛合金的疲劳寿命；本研究揭示了钛合金在静水压力和循环载荷作用下的腐蚀疲劳机理，为深海环境下构件的设计提供了参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.

Study on corrosion fatigue of Ti-6Al-4V alloy under hydrostatic pressure environment in 3.5 % NaCl solution

Abstract

Study on corrosion fatigue of Ti-6Al-4V alloy under hydrostatic pressure environment in 3.5 % NaCl solution