Suitability of Laser Engineered Net Shaping Technology for Inconel 625 Based Parts Repair Process
| Autor: | Magdalena Łazińska, Zbigniew L. Kowalewski, Izabela Barwinska, Tomasz Durejko, Mateusz Kopeć, Adam Brodecki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Cladding (metalworking)
Technology Materials science Indentation hardness Article law.invention Flexural strength law Inconel alloys repair process LENS technology General Materials Science Laser engineered net shaping Laser power scaling Composite material Microscopy QC120-168.85 QH201-278.5 additive manufacturing Inconel 625 Laser Engineering (General). Civil engineering (General) TK1-9971 Lens (optics) Descriptive and experimental mechanics Electrical engineering. Electronics. Nuclear engineering TA1-2040 |
| Zdroj: | Materials, Vol 14, Iss 7302, p 7302 (2021) Materials; Volume 14; Issue 23; Pages: 7302 Materials |
| ISSN: | 1996-1944 |
| Popis: | In this paper, the Inconel 625 laser clads characterized by microstructural homogeneity due to the application of the Laser Engineered Net Shaping (LENS, Optomec, Albuquerque, NM, USA) technology were studied in detail. The optimized LENS process parameters (laser power of 550 W, powder flow rate of 19.9 g/min, and heating of the substrate to 300 °C) enabled to deposit defect-free laser cladding. Additionally, the laser clad was applied in at least three layers on the repairing place. The deposited laser clads were characterized by slightly higher mechanical properties in comparison to the Inconel 625 substrate material. Microscopic observations and X-ray Tomography (XRT, Nikon Corporation, Tokyo, Japan) confirmed, that the substrate and cladding interface zone exhibited a defect-free structure. Mechanical properties and flexural strength of the laser cladding were examined using microhardness and three-point bending tests. It was concluded, that the LENS technology could be successfully applied for the repair since a similar strain distribution was found after Digital Image Correlation measurements during three-point bending tests. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|