Influence of heat treatment on the corrosion and tribo-corrosion resistance of LPBF additively manufactured Cu-15Ni-8Sn alloy

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

Corrosion Science Pub Date : 2025-03-29 DOI:10.1016/j.corsci.2025.112894

Pengcheng Zuo , Hongbo Ju , Zhuangzhuang Liu , Bowei Zhang , Zequn Zhang , Mingze Liu , Shujie He , Xinjie Luo , Ying Li , Bo Peng , Junsheng Wu , Xiaogang Li

引用次数: 0

Abstract

Effect of heat-treatment processes on the microstructure, corrosion and tribo-corrosion behavior of laser powder bed fusion (LPBF) Cu-15Ni-8Sn alloy were systematically investigated. The results demonstrate that the typical molten pool structures were destroyed after solid solution treatment. In contrast, aging process could facilitate the formation of spinodal decomposition structure, which significantly improves the hardness and tribo-corrosion resistance of the LPBF alloy. Nevertheless, a prolonged aging could inversely aggravate the segregation and precipitation of Sn-rich phase along the cellular and grain boundaries, thus driving a severer micro galvanic effect to deteriorate its corrosion resistance. What’s more, the prosperity of soft precipitates would further weaken the tribo-corrosion performance.

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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.