EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

3D-EBSD characterization of microstructures provides the opportunity to construct, visualize and analyze representative volume element (RVE) that are required for full-field finite element simulations. However, considering the fact that 3D-EBSD characterization is very time-consuming it is of crucial importance to investigate whether or not specific features of the 3D RVE cannot be derived...

The nature of interface in contact with living species is the prime interest for biomaterials, prostheses, biosensors… This interface is easily modified by PVD processes in terms of chemistry, structure, microstructure… In the past decade, intense research activity was devoted to Ti-Ag coatings for biosensors; titanium being strongly biocompatible, while silver brought its good electrical...

Tool materials like cemented carbide, high-speed steels (HSS) etc. with enhanced strength and hardness possess low ductility. Therefore, it is practically not possible to attain their stress, strain and strain-rate dependent properties using established test methods since a brittle fracture develops after reaching their yield strain. However, such properties at ambient and elevated...

Introduction

Using new materials often involes time-consuming validation processes. The project “i-Tribomat” aims to reduce these expenses by providing an Open Innovation Test Bed with up-scaling tools to translate tribological behaviour from simple model tests to component scale behaviour.
This section investigates the tribological behaviour of polymer materials in seals.

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Failure analysis of aircraft structural components is critical in an industry where safety is of supreme importance. INTA provides technical support in failure analysis and accident investigation to the Spanish Civil and Military Aviation Accidents Investigation Commissions in order to prevent future incidents. This paper presents an incident study where a Piper aircraft was involved. During...

Additive manufacturing, given its advantages, has developed strongly in many industrial sectors, particularly in the construction field. However, in this specific area of geomaterials, the cementitious material must meet demanding specifications to be printable. In a contradictory manner, it must be sufficiently fluid in the fresh state to facilitate pumping and extrusion but it must stiffen...

Layered double hydroxides (LDHs) are widely applied in commercial products as catalysts, catalyst support precursors, absorbents and so on. Usually, after calcination at moderate temperature (such as 300-500 °C, highly depending on composition), the layered double oxides (LDOs) obtained are able to reform LDH when in contact with solutions containing anions. Investigation of the reformed LDHs...

Powder metallurgy (PM) is a reliable processing method that includes mixing and blending different powders, followed by compaction and sintering under controlled conditions. During the sintering process of powder compacts, non-uniform shrinkage occurs due to density variation, inclusions, and other heterogeneous factors, resulting in distortion, shrinkage, and cracks in the compact. The...

Highly oriented pyrolytic graphite (HOPG) is the ideal 3D carbon material with sp2 hybridization. Besides being a common source for single-layer graphene, obtained by exfoliation, HOPG is an attractive material thanks to its electrical conductivity, chemical inertness, and atomic-level flatness. When using HOPG in Kelvin probe force microscopy (KPFM), we observed the presence of domains with...

Hardening through water quenching is an important step in heat-treatment of steel for a wide range of products that require superior mechanical properties in as-quenched condition, therefore the demand for optimization of steel hardening process and for quality improvement of hardened parts is constantly growing. One way to meet this demand is to perform quenching through optimized cooling...