EBSD study of delta-processed Ni-based superalloy
| Autor: | Jessica Calvo, Marco Antonio Zamora Antuñano, Martha Patricia Guerrero-Mata, José María Cabrera Marrero, Pablo Rodriguez-Calvillo, Pedro Jacinto Paramo Kañetas |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials, Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Diffraction Materials science Inconel 718 chemistry.chemical_element 02 engineering and technology 01 natural sciences Nickel alloys Corrosion 0103 physical sciences General Materials Science Inconel lcsh:Mining engineering. Metallurgy Níquel -- Aliatges 010302 applied physics EBSD analysis Metallurgy Metals and Alloys CSL boundaries 021001 nanoscience & nanotechnology delta-processing Characterization (materials science) Superalloy Enginyeria dels materials::Metal·lúrgia [Àrees temàtiques de la UPC] Nickel Delta-processing chemistry Metals Grain boundary 0210 nano-technology Metalls Electron backscatter diffraction |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Metals Volume 10 Issue 11 Metals, Vol 10, Iss 1466, p 1466 (2020) |
| Popis: | Nickel-based superalloys are extensively used in the aerospace and power generation industries due to their excellent mechanical properties at elevated temperatures and good corrosion resistance. Typically, these alloys require accomplishing critical standards during their manufacturing process. In this study, an Inconel 718 (IN718) Ni-based superalloy was subjected to a delta-processing treatment (DP718) and subsequently deformed at high temperature. Samples were compressed below and above the &delta solvus temperature at two different strain rates of 0.001 s&minus 1 and 0.01 s&minus 1. A detailed microstructural characterization was carried out by the electron backscattered diffraction technique (EBSD). Kikuchi patterns and the orientation relationship of the &delta phase were identified. For samples deformed above the &delta solvus at 0.01 s&minus 1, an increase in the percentage of low angle grain boundaries (LAGB) within deformed grains and a decrease in high angle grain boundaries (HAGB) were observed. Comprehensive observation of the microstructural evolution of IN718 subjected to DP718 using orientation map images was also performed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|