Metallografische analyse

Ultrakleine vergulde roestvrijstalen buisjes (4 mm × 0,55 mm) combineren de hoge sterkte, slijtvastheid en uitstekende luchtdichtheid van roestvrij staal met de lage impedantie, oxidatiebestendigheid en goede soldeerbaarheid van goudplating. Deze microcomponenten worden veel gebruikt in precisie-elektronica, optische communicatie, medische apparaten en RF-connectoren en dienen voor nauwkeurige signaaloverdracht en micro-afdichting […]

ENEPIG (Electroless Nickel-Palladium-Gold) is een dominante oppervlaktebehandeling voor hoogwaardige PCB's. Het bestaat uit een compacte, uniforme drielaagse coating van Ni-Pd-Au en biedt uitstekende oxidatie- en corrosiebestendigheid, evenals een lage contactweerstand. Het voorkomt problemen met zwarte pads die bij conventioneel onderdompelen in goud kunnen optreden, terwijl het zowel soldeer- als draadbondtechnieken ondersteunt voor complexe elektronische assemblages. Belangrijkste toepassingen ✅ Halfgeleiderverpakking […]

GH4169 nikkelgebaseerde superlegering wordt op grote schaal toegepast in componenten van de hete sectie van vliegtuigmotoren, evenals in hoge-temperatuur dragende structurele onderdelen voor de lucht- en ruimtevaart- en energie-industrie. Metaallografische inspectie speelt een cruciale rol. Hierbij worden korrelgrootte, gamma-prime-neerslag en de verdeling van schadelijke fasen visueel geëvalueerd, wat nauw samenhangt met de sterkte, kruip- en vermoeiings-eigenschappen van het materiaal. Een strikte preparatie van de monsters is vereist. […]

Onder de scherpe randen van traditioneel gesmede messen verbergen zich verborgen veranderingen in metallografische structuren. Met een juiste preparatie van het monster en microscopisch onderzoek kunnen we de voordelen en nadelen van klassieke smeedtechnieken volledig vaststellen. Metallografische beelden tonen duidelijke slakinsluitingen afkomstig van ingesloten oxidelaagjes en zones van ontcarburisatie veroorzaakt door hoge temperaturen bij gevouwen smeedverbindingen. Deze delen […]

Based on the metal-semiconductor junction forming a Schottky barrier, Schottky diodes conduct electricity through majority carriers without minority carrier storage effect. Their core advantages include ultra-low forward voltage drop (0.2–0.45V), extremely fast switching speed (ns level), and low power loss. When forward-biased, the barrier decreases for rapid electron conduction; when reverse-biased, the barrier increases to […]

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 […]

Niobium-titanium alloys feature outstanding corrosion resistance, high specific strength, excellent biocompatibility and superconducting properties. They are widely applied in critical fields including medical implants, aerospace, superconducting magnets, nuclear energy and chemical engineering, serving as core structural materials for high-end precision manufacturing. The mechanical properties and stability of the alloy are entirely determined by its microstructure. […]

Metallographic inspection of aluminum‑scandium alloys is critical for ensuring their high‑performance applications. It serves as an indispensable quality control method for process monitoring, parameter optimization, and reliable use in aerospace, high‑end equipment, and other advanced fields. As one of the most effective microalloying elements for strengthening aluminum alloys, scandium significantly refines grains and forms thermodynamically […]

Nitriding is a low-temperature surface chemical heat treatment process that diffuses nitrogen atoms into the steel surface at 500-580℃. No subsequent quenching is needed, yet it drastically boosts the workpiece’s surface hardness, wear resistance, corrosion resistance and fatigue strength—with minimal deformation. It’s a core process in high-end mechanical manufacturing, widely applied to precision load-bearing components […]

The Yuan Dynasty fire lance is the earliest surviving metal tubular shooting firearm in China and even the world—a true milestone in ancient thermal weapons! In the early and middle periods, it was mainly cast from bronze alloys with a sophisticated copper-tin-lead ratio: boasting excellent toughness and chamber pressure resistance, it rarely suffered from barrel […]

As an ideal material for lightweight and functional applications, porous titanium alloy combines the high strength of titanium with the unique advantages of a porous structure. It not only significantly reduces weight and provides a large specific surface area, but also features excellent biocompatibility and energy absorption capacity. It has been widely used in orthopedic […]

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 […]