Analyse métallographique

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 […]

Objective: Grind and polish the chip end face to a mirror finish, ensuring end face perpendicularity and no edge chipping. Key Challenges: Silicon-based chips are brittle, small in size, and difficult to fix during sample preparation. Material: Silicon-based chip Equipment & Accessories Equipment: Semipol high-precision grinding and polishing machine Accessories: Thin-sheet sample mounting fixture Consumables […]

Preparing high-temperature oxidation-resistant ceramic coatings on niobium and niobium alloy substrates is a key surface technology to extend their excellent high-temperature strength for applications in oxygen-containing environments. The core challenges in this field lie in resolving the enormous thermal stress caused by the mismatch in thermal expansion coefficients between metals and ceramics, as well as […]

316 powder metallurgy (PM) stainless steel, leveraging its advantages of corrosion resistance, high strength, and near-net shaping, has been widely applied in scenarios such as automotive engine valve cores, medical device implants, chemical corrosion-resistant valves, offshore platform fasteners, and electronic equipment structural components. The core purpose of its sample preparation is not only to present […]

Chip solder balls are small spherical beads made of pure tin or tin alloys. They are used to provide electrical connection and mechanical support between chip packaging and printed circuit boards (PCBs), as well as connections between stacked packages in multi-chip modules (MCMs). In Ball Grid Array (BGA) packaging, solder balls resolve the conflict between […]

Le cermet, également appelé composite à matrice céramique, est un système multiphasique composé de métaux ou d'alliages et d'une ou plusieurs phases céramiques. Ce type de matériau combine l'excellente ténacité et la conductivité thermique de la phase métallique avec la dureté, la résistance à l'usure et la résistance à la chaleur élevées de la phase céramique, optimisant ainsi les avantages de […]

En tant que support essentiel de la fabrication électronique, la qualité structurelle interne des circuits imprimés détermine directement la fiabilité des produits finaux. L'analyse métallographique est l'outil d'évaluation de la qualité le plus fiable dans l'industrie des circuits imprimés, révélant progressivement la structure interne des cartes, de l'échantillonnage au montage, en passant par le meulage, le polissage et l'observation microscopique.