Mechanical and microstructural characterization of arc-welded inconel 625 alloy

Autor: Daniel Kotzem, Lucas Beermann, Mustafa Awd, Frank Walther
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Materials
Volume 12
Issue 22
Materials, Vol 12, Iss 22, p 3690 (2019)
DOI: 10.17877/de290r-20326
Popis: The objective of this work was to verify a relatively new fusion-based additive manufacturing (AM) process to produce a high-temperature aerospace material. The nickel-based superalloy Inconel 625 (IN625) was manufactured by an arc-based AM technique. Regarding microstructure, typical columnar-oriented dendritic structure along the building direction was present, and epitaxial growth was visible. The mechanical behavior was characterized by a combination of quasi-static tensile and compression tests, whereas IN625 showed high yield and ultimate tensile strength with a maximum fracture strain of almost 68%. Even quasi-static compression tests at room and elevated temperatures (650 ��C) showed that compression strength only slightly decreased with increasing temperature, demonstrating the good high-temperature properties of IN625 and opening new possibilities for the implementation of arc-based IN625 in future industrial applications.
Materials;Jg. 12, Heft: 22 | S. 3690-1-3690-10
Databáze: OpenAIRE