Wear and corrosion resistance of laser-cladded multi-principal-element alloy coatings for polar ship applications: Role of grain boundary characteristics and passivation behaviour

2026-06-19

PRE

Shiyu Huang

Wei Tan

Songpu Yang

Linghao Jin

Jiacheng Xu

Na Guo

Zhangwei Guo

Tao Liu *

DOI：10.1016/j.surfcoat.2026.133705

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• NiCoCr shows highest hardness and strongest passivation in artificial seawater. • FeCoNiCr minimizes volume loss via LAGB-assisted plastic shear accommodation. • HAGB-rich NiCoCr promotes debris-assisted three-body abrasion during sliding. • Grain boundary character and passive film stability control wear in artificial seawater.

Wear and corrosion resistance of laser-cladded multi-principal-element alloy coatings for polar ship applications: Role of grain boundary characteristics and passivation behaviour

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