This study deals with the Inconel 625 (IN625) alloy reinforced with micro-TiC particles processed by laser powder bed fusion. The microstructure and hardness in the as-built and solution-annealed states were investigated. The microstructures of the as-built IN625 and IN625/TiC states were primarily made up of columnar grains along the building direction. After the solution annealing at 1150 °C for 2 h, the IN625 alloy consisted of equiaxed grains due to recrystallization and grain growth. On the contrary, the solution-annealed IN625/TiC composite still presented columnar grains. Therefore, the TiC particles hinder the recrystallization, indicating higher microstructure stability for the composite. For the IN625/TiC composite, both the reduced alteration of the grains and the more intensive formation of carbides prevent a remarkable hardness reduction in the so-lution-annealed state.
Microstructure and hardness evolution of solution annealed inconel 625/TiC composite processed by laser powder bed fusion / Marchese, G.; Aversa, A.; Bassini, E.. - In: METALS. - ISSN 2075-4701. - ELETTRONICO. - 11:6(2021), p. 929. [10.3390/met11060929]
|Titolo:||Microstructure and hardness evolution of solution annealed inconel 625/TiC composite processed by laser powder bed fusion|
|Data di pubblicazione:||2021|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3390/met11060929|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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