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Abstract <p>The effect of the electrolysis mode on internal stresses in zinc, tin–zinc, and nickel electroplates is studied experimentally. The stationary, unipolar galvanostatic pulse, reverse galvanostatic pulse, and potentiostatic pulse electrolysis modes are compared. It was found that the reverse pulse mode provides the maximum stress reduction, viz., by 71% (from 350 to 100 MPa) for nickel electroplates deposited from the Watts electrolyte and the transition from tensile (+25 MPa) to compressive stresses (–5 MPa) for the tin–zinc alloy. The possibility of minimizing the use of organic additives through application of pulse methods is demonstrated. The results highlight the potential of pulse electroplating technologies for improving coating quality under environmental requirements.</p>

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The Effect of Electrolysis Modes on Internal Stresses in Electroplates

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • S. Yu. Kireev,
  • G. V. Kozlov,
  • S. N. Kireeva,
  • A. Z. Yangurazova,
  • Yu. N. Kirilina

摘要

Abstract

The effect of the electrolysis mode on internal stresses in zinc, tin–zinc, and nickel electroplates is studied experimentally. The stationary, unipolar galvanostatic pulse, reverse galvanostatic pulse, and potentiostatic pulse electrolysis modes are compared. It was found that the reverse pulse mode provides the maximum stress reduction, viz., by 71% (from 350 to 100 MPa) for nickel electroplates deposited from the Watts electrolyte and the transition from tensile (+25 MPa) to compressive stresses (–5 MPa) for the tin–zinc alloy. The possibility of minimizing the use of organic additives through application of pulse methods is demonstrated. The results highlight the potential of pulse electroplating technologies for improving coating quality under environmental requirements.