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Ali Sonboli

Ali Sonboli

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0001-9855-0091
Education: PhD.
ScopusId: 56737286400
HIndex:
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
Corrosion performance and tribological behavior of diamond-like carbon based coating applied on Ni−Al−bronze alloy
Type
JournalPaper
Keywords
diamond-like carbon coating; Ni−Al−bronze alloy; tribological behavior; corrosion resistance; nanohardness; microstructure
Year
2021
Journal Transactions of Nonferrous Metals Society of China
DOI
Researchers Seyed Elias Mousavi ، Nastaran Naghshehkesh ، Mohabbat Amirnejad ، Hossein Shammakhi ، Ali Sonboli

Abstract

The effect of diamond-like carbon (DLC) coating (fabricated by cathodic arc deposition) on mechanical properties, tribological behavior and corrosion performance of the Ni−Al−bronze (NAB) alloy was investigated. Nano-hardness and pin-on-plate test showed that DLC coating had a greater hardness compared with NAB alloy. Besides, the decrease in friction coefficient from 0.2 for NAB substrate to 0.13 for the DLC-coated sample was observed. Potentiodynamic polarization and EIS results showed that the corrosion current density decreased from 2.5 µA/cm2 for bare NAB alloy to 0.14 µA/cm2 for DLC-coated sample in 3.5 wt.% NaCl solution. Moreover, the charge transfer resistance at the substrate−electrolyte interface increased from 3.3 kΩꞏcm2 for NAB alloy to 120.8 kΩꞏcm2 for DLC-coated alloy, which indicated an increase in corrosion resistance due to the DLC coating