Session: 03-03 Metals: Path Development
Paper Number: 91705
91705 - Development of a New Manufacturing Route by Direct Laser Metal Deposition With Nicrsifeb Alloys to Replace Cobalt in Aeronautical Components
Nickel-based alloys of the NiCrSiFeB family (self-fluxing alloys) are excellent candidates for replacing cobalt-based alloys in aeronautical components such as sealing rings, valve seats, sliding bearing seats, etc. In this type of components, commonly manufactured by centrifugal casting and other conventional processes, high temperature wear and stiffness under complex thermo-mechanical stresses cause lack of sealing, and an increase in the wear rate. Metal additive manufacturing by direct laser metal deposition with powder (p-LMD) is presented as a potential manufacturing route for the complex processing of this type of alloys. This research work deals with the development of a new manufacturing route using p-LMD that ranges from the proper selection of the chemical composition for the starting powders, the development of the LMD process parameters to tackle the challenges associated to the wide solidification range and crack susceptibility of NiCrSiB alloys, its monitoring and control, as well as the post-processing required to achieve the manufacture of aeronautical components. Among the expected benefits is to achieve a flexible manufacturing route, which allows reducing design, manufacturing and market entry times, with less environmental impact than current manufacturing solutions, and to reach similar or superior high temperature wear behavior (up to 700 °C) of the Stellite 6 alloy currently used. In this work, the porosity analysis, as-built microstructure, hardness at room temperature and at high temperature, and the strengthening mechanisms have been studied.
Presenting Author: Juan Carlos Pereira Falcon LORTEK Technological Centre, Basque Research and Technology Alliance BRTA
Presenting Author Biography: Senior Researcher at LORTEK Technological Centre (Basque Research and Technology Alliance BRTA). PhD in Engineering and Industrial Production (ITM-UPV Spain), MSc in Mechanical Engineering (USB Venezuela), bachelor’s in Mechanical Engineering (UC Venezuela). He is author of more than 25-refereed publications, most of them in high impact journals (Scopus, SCR-JCR) in the last five years. Has several presentations in national and international congresses related to the development and characterization of MCrAlY laser coatings for high temperature applications, and also with process development for laser based additive manufacturing processes like LMD and SLM. He works as a senior researcher in LORTEK since 2017. Previously he has worked as a Researcher in the Institute of Materials Technology (ITM Valencia – Spain) and as Professor and Researcher in the Materials and Manufacturing dept. of the Engineering Faculty (UC Venezuela). Currently working in the Laser Based Additive Manufacturing research group at LORTEK in different European, National and Regional R&D projects. Project Manager in NEMARCO (H2020-CS2-CFP11-2020-01), Technical coordinator in HYPROCELL project (H2020-FoF13-2016), and technical support for AMABLE project (H2020-FoF12-2017-ICT I4MS).<br/>https://orcid.org/0000-0002-4385-6197<br/>https://www.scopus.com/authid/detail.uri?authorId=7401895254<br/>https://scholar.google.es/citations?user=UljD35oAAAAJ&hl=en
Authors:
Development of a New Manufacturing Route by Direct Laser Metal Deposition With Nicrsifeb Alloys to Replace Cobalt in Aeronautical Components
Paper Type
Technical Paper Publication