Cavitation erosion-corrosion properties of as-cast NiTi and LPBF NiTi in 3.5 wt% NaCl solution: A comparison investigation.

Ruoyu Fei, Zhou Yang, Huiling Zhou, Xiang Cai, Lianmin Zhang, Lanlan Yang, Feng Xiao, Qichao Zhang, Yanxin Qiao

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Article in Ultrasonics sonochemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Ruoyu FeiSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.

Zhou YangSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.

Huiling ZhouSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China. Electronic address: zhouhl@edu.cn.

Xiang CaiSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.

Lianmin ZhangShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. Electronic address: lmzhang14s@imr.ac.cn.

Lanlan YangSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.

Feng XiaoNavy Submarine Academy, Qingdao 260199, China.

Qichao ZhangNavy Submarine Academy, Qingdao 260199, China. Electronic address: 263342066@qq.com.

Yanxin QiaoSchool of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.

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6 · The paper itself

Abstract

This study aimed to clarify how the laser powder bed fusion (LPBF) process modifies the cavitation erosion-corrosion (CE-corrosion) behaviour of NiTi alloys in a 3.5 wt% NaCl solution, through a systematic comparison with an as-cast NiTi counterpart. Ultrasonic CE-corrosion mass-loss tests, potentiodynamic and potentiostatic polarisation, Mott-Schottky analysis, and X-ray photoelectron spectroscopy were combined to correlate microstructure, passive-film properties, and damage evolution. After 20 h of CE, the cumulative mass loss of the LPBF NiTi alloy reached 5.65 mg, approximately 2.57 times that of the as-cast alloy (2.20 mg), and its steady-state mass-loss rate (∼0.28 mg·h

Indexed as

Cavitation erosion-corrosionElectrochemical behaviourFailure mechanismLaser powder bed fusionNiTi alloyPassive film

Identifiers

PMID42896427

DOI10.1016/j.ultsonch.2026.108122

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