920℃ high-temperature wetting behaviors of molten aluminum on laser-textured cast iron surface

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Physics A Pub Date : 2025-03-27 DOI:10.1007/s00339-025-08453-7

Xin Lyu, Zhiyuan Rui, Haobo Sun, Chao Mei, Wandong Cheng, Kang Lu, Yun Dong

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引用次数: 0

Abstract

This study investigates the anti-wetting behavior of liquid aluminum on microtextured QT700 cast iron surfaces for vacuum ladle applications. Periodic surface microstructures (micro-circular grooves, micro-pits, micro-grooves) are fabricated on QT700 substrates via nanosecond laser processing, with subsequent aluminum wetting dynamics analyzed at 900 °C using an advanced sessile drop apparatus equipped with high-speed imaging. Results demonstrate that all laser-generated microstructures inhibit aluminum wetting, exhibiting higher equilibrium contact angles compared to smooth surfaces. Micro-pit patterns show the most significant anti-wetting effect, achieving a maximum contact angle of 77°. Cross-sectional SEM-EDS analysis reveals vertical growth of intermetallic compounds at three-phase junctions, which mechanically pin the contact line through capillary force-induced reaction enhancement. Notably, the intermetallic layer thickness exceeds laser-ablated groove depth, resulting in similar final interface morphologies across textured and smooth surfaces. These findings provide mechanistic insights for designing non-wetting ladle linings through controlled interfacial reactions.

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.