Flow stress improvement of a nickel multicrystal by physical vapor thin film deposition to reduce surface effects

Pierre-Antoine Dubos,Ameni Zaouali,Pierre-Yves Jouan,Mireille Richard-Plouet,Valerie Brien,David Gloaguen,Baptiste Girault

Materials Letters: X（2022）

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摘要

•Degraded mechanical behavior of multicrystals is due to the free surface effect.•Deposited thin films are a good barrier for dislocation escape.•Discharge pressure impacts the coating microstructure with repercussions on the mechanical stress enhancement.

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关键词

Multicrystals,Mechanical properties,Physical vapor deposition,Work-hardening

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