Systematic Evaluation of Abrasive Wear Resistance in Smart Cermet Marine Coatings for High-Speed Pump Impellers

Rohit P. Jadhav; Amol D. Wable; Ramachandran Thulasiram; Ripendeep Singh; Nishant Kulkarni

doi:10.5750/ijme.v168iA5(S).2004

Published: Oct 21, 2026

DOI: https://doi.org/10.5750/ijme.v168iA5(S).2004

Keywords:

Smart and sustainable cermet coatings Abrasive wear resistance Marine pump impellers Slurry erosion Marine surface engineering

Rohit P. Jadhav

Robotics & Automation Department, D.Y.Patil College of Engineering, Akurdi, Pune, India

Amol D. Wable

Department of Mechanical Engineering, Sanjivani College of Engineering, Savitribai Phule Pune University, Kopargaon, 423603, Ahilyanagar, Maharashtra, India

Ramachandran Thulasiram

Department of Mechanical Engineering, School of Engineering and Technology, JAIN (Deemed to be University), Bangalore, Karnataka, India

Ripendeep Singh

Department of Mechanical Engineering, Chandigarh University, Mohali, Punjab, India

Nishant Kulkarni

Department of Mechanical Engineering, Vishwakarma Institute of Technology, Pune, Maharashtra, 411037, India

Abstract

High-speed marine pump impellers experience severe wear under abrasive seawater conditions, while conventional
coatings offer limited durability. This research investigates smart and sustainable cermet marine coatings, developed using a single ceramic phase combined with three metallic binders, to identify an optimum composition with enhanced abrasive wear resistance, corrosion resistance, and durability. The coatings were placed on marine-grade stainless steel (AISI 316L) using a high-velocity oxy-fuel (HVOF) thermal spray process and characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD). Abrasive wear performance was evaluated through slurry erosion, microhardness, surface roughness, adhesion strength, and electrochemical corrosion testing. Among the three compositions, coating c2 achieved optimum performance, with the highest microhardness (1210 HV), lowest wear rate (10.1 mg/h), and superior adhesion and corrosion resistance. SEM and XRD confirmed a denser, well-bonded microstructure with minimal porosity. The findings demonstrate significantly enhanced wear resistance, corrosion protection, and durability for marine applications.

Issue

Vol. 168 No. A5(S) (2026): Integrating Innovation Across Disciplines New Paradigms in Multidisciplinary Research

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