Micro-scale abrasion behaviour of electroless Ni-P-SiC coating on aluminium alloy

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Abstract

Electroless nickel (EN) and electroless nickel composite (ENC) coatings were deposited on aluminium alloy substrate, LM24. The micro abrasion test was conducted to study the wear behaviour of the coatings with the effect of SiC concentration. Microhardness of the coatings was tested also. The wear scars were analysed using optical microscope and scanning electron microscope (SEM). The wear resistance was found to be improved in composite coating that has higher microhardness as compared to particles free and the bare aluminium substrate. In as-deposited condition for the composite coating, the wear volume increases on increase in SiC percentage in the coating but is found to be minimum for lower SiC percentage. The increase in hardness on heat treatment at 400°C is due to the hardening or grain coarsening with the formation Ni3P.
Original languageEnglish
Number of pages2
Publication statusPublished - 2014
EventICMCTF'14 - International Conference On Metallurgical Coatings & Thin Films - CA, San Diego, United States
Duration: 28 Apr 201402 May 2014

Conference

ConferenceICMCTF'14 - International Conference On Metallurgical Coatings & Thin Films
CountryUnited States
CitySan Diego
Period28/04/201402/05/2014

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    Franco, M., Sha, W., & Malinov, S. (2014). Micro-scale abrasion behaviour of electroless Ni-P-SiC coating on aluminium alloy. Abstract from ICMCTF'14 - International Conference On Metallurgical Coatings & Thin Films, San Diego, United States.