Browsing Ikerketa-Artikuluak by Author "Zabala Eguren, Alaitz"
Now showing items 1-8 of 8
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Ball-on-flat linear reciprocating tests: Critical assessment of wear volume determination methods and suggested improvements for ASTM D7755 standard
Ayerdi Cantalejo, Jon; Aginagalde Lopez, Andrea; Llavori Osa, Iñigo; Zabala Eguren, Alaitz (Elsevier B.V., 2021)This work presents a critical assessment of wear volume determination methods for ball-on-flat linear reciprocating sliding tribological tests. It revealed that the ASTM D7755-11 standard leads to the highest relative ... -
A coupled 3D wear and fatigue numerical procedure: Application to fretting problems in ultra-high strength steel wires
Llavori Osa, Iñigo; Zabala Eguren, Alaitz; Mendiguren Olaeta, Joseba; Gómez Rodríguez, Xabier (Elsevier Ltd., 2021)This work presents a coupled 3D wear and fatigue numerical procedure for fretting problems in ultra-high strength steel wires that combines Archard’s wear equation with the Smith–Watson–Topper parameter to predict crack ... -
Definición de una metodología optimizada para la simulación del desgaste en materiales
Cruzado García, Aitor; Zabala Eguren, Alaitz; Gómez Rodríguez, Xabier (Consejo Superior de Investigaciones Científicas (CSIC), 2010)The wear simulation with finite element method (FEM) presents great advantages for the improvement of components, because of the reduction in the cost in comparison to the experimental procedure (test time, materials, ... -
Development of a Modular Fretting Wear and Fretting Fatigue Tribometer for Thin Steel Wires: Design Concept and Preliminary Analysis of the Effect of Crossing Angle on Tangential Force
Llavori Osa, Iñigo; Zabala Eguren, Alaitz; Tato Vega, Wilson; Gómez Rodríguez, Xabier (MDPI AG, 2019)This work presents the design of a modular ad-hoc fretting fatigue and fretting wear tribotester for thin steel wires. The working principles of the diffrent modules are described, such as the displacement and contact ... -
On the Role of a ZDDP in the Tribological Performance of Femtosecond Laser-Induced Periodic Surface Structures on Titanium Alloy against Different Counterbody Materials
Ayerdi Gómez, Jon Joseba; Llavori Osa, Iñigo; Zabala Eguren, Alaitz; Aginagalde Lopez, Andrea (MDPI, 2019)Laser-induced periodic surface structures (LIPSS, ripples) with ~500–700 nm period were produced on titanium alloy (Ti6Al4V) surfaces upon scan processing in air by a Ti:sapphire femtosecond laser. The tribological ... -
On the Role of Contact and System Stiffness in the Measurement of Principal Variables in Fretting Wear Testing
Zabala Eguren, Alaitz; Abbasi, Farshad; Llavori Osa, Iñigo (MDPI AG, 2020)In this work, the role of the contact stiffness in the measurement of principal variables in fretting wear tests is assessed. Several fretting wear tribometers found in the literature, including one developed by the authors, ... -
Surface integrity of additive manufacturing parts: a comparison between optical topography measuring techniques
Tato Vega, Wilson; Llavori Osa, Iñigo; Aginagalde Lopez, Andrea; Zabala Eguren, Alaitz (Elsevier B.V., 2020)Additive Manufacturing (AM) presents significant industry-specific advantages allowing the creation of complex geometries and internal features that cannot be produced using conventional manufacturing processes. However, ... -
Towards the automation of the die spotting process: Contact blue pattern decryption
Zabala Eguren, Alaitz; Llavori Osa, Iñigo; Saenz de Argandoña Fernández de Gorostiza, Eneko; Mendiguren Olaeta, Joseba (Elsevier Ltd., 2020)Automotive die spotting is one of the most complex and least standardized processes in the tool making process. A spotting expert identifies local contact areas through a blue-paste pattern and the die/sheet contact is ...
