Analyse métallographique

Faced with global energy shortages and growing environmental concerns, lithium-ion batteries have become the core solution for energy storage and power applications, thanks to their high energy density and long cycle life. They are widely adopted in power station energy storage systems, UPS communication power supplies, electric vehicles, aerospace and military equipment, with applications continuing […]

Les alliages de niobium-titane présentent une résistance exceptionnelle à la corrosion, une résistance spécifique élevée, une excellente biocompatibilité et des propriétés supraconductrices. Ils sont largement utilisés dans des domaines critiques tels que les implants médicaux, l’aérospatiale, les aimants supraconducteurs, l’énergie nucléaire et l’ingénierie chimique, servant de matériaux structurels de base pour la fabrication de haute précision de pointe. Les propriétés mécaniques et la stabilité de l’alliage sont entièrement déterminées par sa microstructure. […]

L’inspection métallographique des alliages d’aluminium‑scandium est essentielle pour garantir leurs applications à hautes performances. Elle constitue une méthode incontournable de contrôle qualité pour la surveillance des procédés, l’optimisation des paramètres et l’utilisation fiable dans l’aérospatiale, les équipements haut de gamme et d’autres domaines avancés. En tant qu’un des éléments de microalliage les plus efficaces pour renforcer les alliages d’aluminium, le scandium affine considérablement les grains et forme thermodynamiquement […]

La nitruration est un procédé de traitement thermique chimique de surface à basse température qui diffuse des atomes d’azote dans la surface de l’acier à 500–580 °C. Aucun trempe ultérieure n’est nécessaire, mais elle augmente considérablement la dureté de surface, la résistance à l’usure, la résistance à la corrosion et la résistance à la fatigue de la pièce, tout en entraînant une déformation minimale. C’est un procédé clé dans la fabrication mécanique de pointe, largement utilisé pour les composants de charge de précision […]

La lance de feu de la dynastie Yuan est la plus ancienne arme à feu tubulaire en métal encore existante en Chine, voire dans le monde — un véritable jalon dans les armes thermiques anciennes ! Aux premiers et moyens siècles, elle était principalement moulée en alliages de bronze avec un rapport sophistiqué cuivre‑étain‑plomb : bénéficiant d’une excellente ténacité et d’une résistance élevée à la pression dans la chambre, elle subissait rarement des ruptures du canon […]

En tant que matériau idéal pour les applications légères et fonctionnelles, l’alliage de titane poreux combine la haute résistance du titane avec les avantages uniques d’une structure poreuse. Il réduit non seulement significativement le poids et offre une grande surface spécifique, mais présente également une excellente biocompatibilité et une capacité d’absorption d’énergie. Il a été largement utilisé en orthopédie […]

Thermal spraying is an advanced surface engineering technology that heats materials to a molten or semi-molten state, then sprays them onto a substrate surface at high velocity to form a functional protective coating. Like applying custom-made armor to workpieces, it significantly improves key properties including wear resistance, corrosion resistance, high-temperature resistance, thermal insulation, electrical insulation […]

Titanium alloys are strategic materials for aerospace, medical & high-end industries. However, they are difficult to prepare due to heat sensitivity, edge rounding, and deformation layers. Here is the optimized metallographic preparation workflow fully compatible with Trojan equipment: ✅ Cutting:Use Trojan Tablecut 200 precision cutter with dedicated blades to avoid overheating, burning, sticking, and work […]

EBSD (Electron Backscatter Diffraction) is a “microscopic perspective lens” for the R&D and quality control of alloy steel! It accurately captures core microstructural information including grain orientation, grain boundary characteristics, phase distribution and dislocation density, revealing the correlation between microstructure and mechanical properties such as strength, toughness and corrosion resistance. It provides direct evidence for […]

Magnetic cores are magnetic components made of ferromagnetic materials (e.g., iron, silicon steel, ferrite), designed to concentrate and guide magnetic fields. They are indispensable core parts in numerous electronic and electrical devices. Key Functions of Magnetic Cores ✅ Magnetic field concentration: Gather the magnetic field generated by coils to boost inductance, enabling more compact and […]

As the core acoustic component of mobile devices, smartphone speakers rely on precision micro-welding and assembly to deliver Hi-Fi sound in ultra-slim designs. Their performance & lifespan depend entirely on coil weld quality, magnetic coating uniformity, and component fit accuracy. Check out our metallographic sample prep workflow for crystal-clear micrographs: 1️⃣ P180 SiC disc → […]

In the industrial kingdom woven by steel and iron, welds never seek the spotlight, yet they hold the core power to prop up countless pieces of equipment and projects, truly deserving the name of invisible “life veins”. From the steel structures of bridges spanning rivers, to the aero-engines soaring through the sky; from the shells […]

As high-performance heat transfer components, finned tubes boost heat exchange area dramatically by adding fins to the base tube surface. This enables more compact, efficient heat transfer—making them indispensable across key industrial sectors. The welding quality between fins and base tube is non-negotiable for equipment safety & lifespan. Secure metallurgical bonding is a must to […]

In the manufacturing of drill bits and cutting tools, metallographic inspection of metal powders prior to sintering serves as the fundamental guarantee for quality control. By preparing and observing raw powder samples, the internal microstructure can be directly evaluated—including the degree of pre-alloying, morphology of primary carbides, and purity—thus predicting the uniformity of the sintered […]

When it comes to gypsum rock, don’t just think of construction gypsum boards! This sedimentary rock formed from calcium sulfate minerals has plenty of hidden talents. Its formation dates back to ancient oceans or lakes. As water evaporated, calcium sulfate crystals gradually precipitated and compacted, eventually forming the gypsum rock we see today. It is […]

Thermal spray coating is known as the “protective armor” for industrial components, widely used in machinery, aerospace, energy and other fields. It not only provides wear-resistant protection for easily worn shafts and blades, but also builds a corrosion-resistant barrier for pipelines and containers in corrosive environments. Additionally, it can realize functions such as heat insulation […]

New energy power battery modules impose extremely high requirements on the reliability of electrical connections. Aluminum busbars, thanks to their excellent electrical conductivity and lightweight characteristics, have become key connecting components inside the modules. Laser welding technology, with its advantages of high energy density and precise heat input, effectively resolves process challenges such as oxidation […]

Aluminum, a lightweight metal with balanced properties, is limited in high-end applications by its inherent insufficient strength and heat resistance. Aluminum matrix composites achieve performance breakthroughs by incorporating nano-scale or micro-scale reinforcement particles, while retaining aluminum’s excellent characteristics. Through interactions with dislocations (such as hindrance and surrounding) and load transfer effects, reinforcement particles effectively impede […]