Microstructure of the oxide ceramics/Inconel 713C interface

ABSTRACT

Nickel-based refractory alloys are used in the aerospace industry as materials for the production of engine turbine blades obtained by the casting method. Both casting process and surface quality of the ceramic mould have a significant influence on product properties. Current research involved the investigation of interactions between oxide ceramics, forming the basic material of casting moulds and crystallisers, and Inconel 713C nickel superalloy. The wettability of ceramics by Inconel 713C was tested for the three types of materials at temperatures commonly used in the directional casting of this alloy. The oxide ceramics/Inconel 713C interfaces were examined by SEM to reveal the microstructure of phase boundary and assess the degree of degradation of the casting mould ceramic coating.

KEYWORDS:

• Nickel alloys
• contact phenomena
• remelting by electric arc
• microstructure

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Agnieszka Hotlos http://orcid.org/0000-0002-4998-2004

Krzysztof Ziewiec http://orcid.org/0000-0003-0799-4514

Additional information

Funding

This work was supported by Ministry of Science and Higher Education: [grant number 11.11.180.958].