Heating Conditions Influence on Solidification of Inconel 625–WC System for Additive Manufacturing
Open Access
- 30 June 2020
- Vol. 13 (13), 2932
- https://doi.org/10.3390/ma13132932
Abstract
In this study, an Inconel 625–tungsten carbide (WC) composite system was investigated by means of microstructure changes affected by both heating rate and WC content. In order to investigate how the system behaves while exposed to fast thermal processing, controlled melting using a differential thermal analysis (DTA) apparatus was performed on the powders. Two WC powders with different average grain size were used to obtain six compositions of Inconel 625–WC powder mixtures (10, 20, and 30 wt.% WC). They were analyzed under 10 and 30 °C/min heating rate in order to obtain composite samples. Results from DTA together with SEM/energy-dispersive X-ray spectroscopy (EDS) microstructural observations allowed observing material changes during solidification. Because of the extensive microsegregation of alloying elements to liquid and their reactions with C, which derived from dissolved WC, the formation of secondary phases with improved microhardness was possible. The collected results provide a better understanding of material behavior during intensive thermal processing which can be useful when designing materials for the laser additive manufacturing technique.Funding Information
- Narodowe Centrum Nauki (UMO-2017/25/N/ST5/02319)
This publication has 22 references indexed in Scilit:
- Multi-variable optimisation of the quality characteristics of fiber-laser cladded Inconel-625 composite coatingsSurface and Coatings Technology, 2018
- Direct metal additive manufacturing processes and their sustainable applications for green technology: A reviewInternational Journal of Precision Engineering and Manufacturing-Green Technology, 2016
- Improving the high-temperature oxidation resistance of H13 steel by laser cladding with a WC/Co-Cr alloy coatingAnti-Corrosion Methods and Materials, 2016
- A comparison of energy consumption in bulk forming, subtractive, and additive processes: Review and case studyInternational Journal of Precision Engineering and Manufacturing-Green Technology, 2014
- An evaluation of green manufacturing technologies based on research databasesInternational Journal of Precision Engineering and Manufacturing-Green Technology, 2014
- Additive layer manufacture of Inconel 625 metal matrix composites, reinforcement material evaluationJournal of the American Academy of Dermatology, 2013
- Perspective to green manufacturing and applicationsInternational Journal of Precision Engineering and Manufacturing, 2013
- Interfacially driven mass transport in joining and coating technologiesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1998
- Laser cladding and alloying of a Ni-base superalloy on plain carbon steelJournal of Materials Science, 1994
- Stellite as a wear-resistant materialTribology, 1970