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Mai 2026 Use of AI to detect hardness impressions in the fine-lamellar perlite microstructure
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Inconel 718 is a high-strength nickel-based alloy specifically designed for extreme conditions. It is characterized by excellent corrosion resistance, high-temperature strength and good weldability. These properties make it indispensable in the aerospace industry, for example in turbines or rocket engines. Inconel 718 is also frequently used in the energy and chemical industries. Its reliability under extreme stresses contributes significantly to the safety and efficiency of modern technologies and makes the material an important component of innovative developments.
The aim of metallographic preparation of the Inconel 718 alloy is to produce an artefact-free and representative surface to examine the microstructure accurately. Through grinding, polishing and etching, microstructures such as grain boundaries, precipitates and phases are made visible. This enables an assessment of heat treatments, mechanical properties and potential defects. Careful preparation is crucial for making reliable conclusions about the material quality and the behaviors of the alloy under service conditions.
This month, you will learn everything about the complete metallographic preparation of an Inconel 718 alloy.
L'examen métallographique des alliages de titane joue un rôle central dans l'assurance qualité. Une préparation précise, une gravure et une analyse microscopique permettent une évaluation fiable de la microstructure, de la taille des grains et des défauts éventuels. Il est particulièrement important d'identifier les transformations de phase et les irrégularités structurelles susceptibles d'influencer les propriétés mécaniques. La métallographie permet ainsi de détecter à un stade précoce les écarts par rapport aux spécifications des matériaux, d'optimiser les processus de fabrication et de garantir la fiabilité à long terme des composants liés à la sécurité. Dans la préparation de ce mois-ci, vous apprendrez comment préparer un alliage de titane sans artefacts en seulement trois étapes
Materialographic sample preparation is an essential step in the qualitative and quantitative analysis of geological and mineralogical samples. Whether you want to analyze rocks, ores, minerals, or fossils, you need a reliable and precise method to cut, mount, grind and polish your samples. With QATM equipment and consumables, you can optimize this process and achieve high-quality results.
In this report, we present some of our most important products and applications for materialographic sample preparation for geology and mineralogy. You will find a brief description of the features and benefits of our cutting machines, mounting systems and grinding and polishing machines, as well as some examples of typical samples that you can prepare with our equipment and consumables.
Duplex steel is a stainless steel with a two-phase microstructure consisting of austenite and ferrite. It is frequently used in chemical plant construction, in the oil and gas industry, in the offshore sector and in tank and pipeline construction. Thanks to its high strength and excellent corrosion resistance, particularly against stress-corrosion cracking, it is suitable for demanding environments. Heat treatment is usually carried out by solution annealing at high temperatures followed by rapid quenching to ensure a balanced phase structure and prevent harmful precipitates. Metallographic examination of duplex steel is used to analyse its characteristic two-phase microstructure of austenite and ferrite. The aim is to evaluate the phase ratio (ideally around 50:50), the grain size and any possible precipitates or structural defects. After sampling, the sample is embedded, ground and polished to obtain a scratch-free surface. Suitable etching is used to make the phases visible with high contrast. The samples are then examined using light microscopy or scanning electron microscopy. Particular attention is paid to intermetallic phases such as sigma phase, as these can have a negative impact on corrosion resistance and toughness. Metallographic analysis is therefore an important part of quality assurance.
In this month's preparation report, you will learn how to prepare samples from duplex steel without metallographic artefacts.
Inconel 718 is a high-strength nickel-based alloy specifically designed for extreme conditions. It is characterized by excellent corrosion resistance, high-temperature strength and good weldability. These properties make it indispensable in the aerospace industry, for example in turbines or rocket engines. Inconel 718 is also frequently used in the energy and chemical industries. Its reliability under extreme stresses contributes significantly to the safety and efficiency of modern technologies and makes the material an important component of innovative developments.
The aim of metallographic preparation of the Inconel 718 alloy is to produce an artefact-free and representative surface to examine the microstructure accurately. Through grinding, polishing and etching, microstructures such as grain boundaries, precipitates and phases are made visible. This enables an assessment of heat treatments, mechanical properties and potential defects. Careful preparation is crucial for making reliable conclusions about the material quality and the behaviors of the alloy under service conditions.
This month, you will learn everything about the complete metallographic preparation of an Inconel 718 alloy.
