Work

Plain and fretting fatigue experimental test with inconel 718 at room and high temperature

Year: 2026

Type: article

Abstract: In this study, the fretting fatigue behaviour of Inconel 718 was analysed at both room and high temperature (650°C) using ‘dog-bone’ fretting fatigue specimens with a cylindrical contact pad. Inconel 718 is a nickel-chromium-based superalloy widely used in the aeronautical industry due to its excellent mechanical properties, including resistance to oxidation and corrosion, even at high temperatures. Additionally, the material was heat-treated to enhance its mechanical performance. Different tests were conducted in the laboratory under various (axial) load levels to analyse the fretting fatigue behaviour of Inconel 718 at both temperatures. To achieve this, fretting fatigue and plain fatigue curves were obtained. In addition, interrupted fretting fatigue tests were carried out to gain a deeper understanding of crack evolution at elevated temperatures. The study was further complemented by an analysis of surface oxidation and the fracture surface of fretting fatigue specimens.

Source: Tribology International

DOI: 10.1016/j.triboint.2026.111861

Authors: María Moreno-Rubio, Jesús Vázquez, Carlos Navarro, Jaime Domínguez

Institutions: Universidad de Huelva, Universidad de Sevilla

Language: English

Topic: Mechanical stress and fatigue analysis

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $5,390

Funders: Ministerio de Ciencia, Innovación y Universidades, Ministerio de Ciencia e Innovación