Fabrication of composites from different carbon content ferrous powders adopting thermomechanical processes

Khuntia, Sujit Kumar; Pani, Bibhuti Bhusan; Nayak, Subhakanta

doi:10.1080/10426914.2019.1594251

Cited by 6 publications

(1 citation statement)

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“…Electrophoretic deposition (EPD) is a colloidal technique to deposit the electrically charged particles of ceramics, polymers and composites onto the substrate. The electrophoretically deposited layers are inherently porous and required to be consolidated by a post-sintering operation to become applicable as a wear-resistant coating [14][15][16]. Liquid phase sintering (LPS) is a process generally utilized for consolidation of powder compacts.…”

Section: Introductionmentioning

confidence: 99%

Combination of electrophoretic and electroless depositions to fabricate Ni/TiC cladding

Gorji

Sanjabi

Edtmaier

2019

Surface Engineering

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A novel method is established that improves the shortcoming of embedding low volume fraction of reinforcements in Ni-P electroless coating. Experimental design of the present study is based on 5 steps: (1) electrophoretic deposition (EPD) of titanium carbide core inside the Ni-P shell particles (2) pre-sintering of as-EPD layer (3) electroless deposition of Ni-P top layer on as-EPD layer (4) heating the multilayer structure and (5) infiltration of the Ni-P melt phase through porous EPD layer. Anchoring TiC particles inside a Ni-P shell was done for catalyzing electroless Ni-P deposition on as-EPD layer and improving the high-temperature wettability of the EPD layer. By infiltration sintering on EPD layer (20 V for 2 min) a composite coating of Ni-P/TiC with a volume fraction of ∼49% TiC was successfully produced. According to wear test results, embedding TiC into Ni-P significantly increases hardness (972-1460 VHN) and reduces friction coefficient (0.45-0.23).

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Section: Introductionmentioning

confidence: 99%