About this Engineering article
A study on the influence of reinforcement particle size in laser cladding of TiC/Inconel 625 metal matrix composite by Shrey Bhatnagar; Suvradip Mullick is a Engineering article available to read on EtoBox.
The size of reinforcement particles in laser cladding of metal matrix composite (MMC) plays significant role in defining microstructure and clad properties. The current work investigates the effect of TiC particle size on clad dilution and bonding between clad and substrate, along with microstructural evolution and change in micro-hardness of the deposited layer for single track pre-placed laser cladding of 30 %TiC/Inconel 625 MMC on SS 304 substrate using Yb-Fiber laser. Three different size range of TiC particles were chosen for the experimentations, coarse (particle size: >75 μm), intermediate (size: 25–75 μm) and fine (size: <25 μm). The decomposition behavior of TiC particles and its distribution in clad was observed under different reinforcement particle size and line energy, and the microstructural changes were correlated with molten pool lifetime obtained from the temperature history of the clad layer, captured using IR-Pyrometer. The size of reinforcement particles and their distribution is found responsible for the porosity in pre-placed layer, which finally changes the absorption behavior of laser radiation in powder layer. This further controls the clad dilution, molten
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- Author
- Shrey Bhatnagar; Suvradip Mullick
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)