What question did this study set out to answer?

This research aims to optimize the mechanical properties of electroless Ni-P-Zr coatings on aluminum substrates using the Grey-Taguchi method.

April 12, 2026Advances in Materials Science0 citationsOpen Access

Optimization of Mechanical Properties and Features of Electroless Ni-P-Zr Ternary Plating Using The Grey-Taguchi Method

TCTing‑Hsueh ChuangLunghwa University of Science and Technology FLF H LiuLunghwa University of Science and Technology CTChung‐Chen TsaoLunghwa University of Science and Technology

Key Points

This research aims to optimize the mechanical properties of electroless Ni-P-Zr coatings on aluminum substrates using the Grey-Taguchi method.
Deposited electroless Ni-P-Zr films onto aluminum substrates
Conducted XRD analysis to assess the film structure
Applied the Grey-Taguchi method for optimization
Evaluated properties including friction coefficient, corrosion potential, and hardness
Ni-P-Zr coating achieved a friction coefficient of 0.35
Corrosion potential was recorded at –0.60 V
Vickers hardness measured at 582.9 HV
Fatigue life improved to 52 times compared to uncoated substrate
Coating effectively eliminates crack initiation and propagation

Abstract

Abstract Electroless Ni-P-Zr films are deposited onto Al substrates. Effect of different pre-treatments on the subsequent chemical plating. XRD analysis shows that the Ni-P-Zr film is amorphous. Grey-Taguchi shows that the Ni-P-Zr coating exhibits a friction coefficient of 0.35, a corrosion potential of –0.60 V, a Vickers hardness of 582.9 HV, and a fatigue life of 52 times. A comparison of fatigue failure mechanisms for the uncoated substrate and the electroless Ni-P-Zr coating is conducted under high-strain low-cycle fatigue loading. The results confirm that the coating eliminates crack initiation and propagation and increases the fatigue life of the specimens.

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