Solid State Diffusion Coating TRIZ Cases

Aluminized porous metallic scaffold forms an aluminide phase through elevated temperature diffusion.

Microalloying with titanium, niobium, and vanadium prevents hydrogen embrittlement during bright annealing, maintaining high mechanical strength.

A maraging steel strip uses a nitrided layer with coherent Cr nitrides to enhance tensile strength.

Nitrocarburized H13 steel barrels resist erosion and corrosion at 1000°F without losing temper.

Austenitic stainless steel with refined grain size and surface nitrogen absorption inhibits hydrogen penetration.

High-pressure gas quenching during vacuum carburization reduces heat deformation in annulus gears while maintaining shape integrity.

A coating film with controlled oxygen distribution provides wear resistance across temperature ranges.

Optimized steel composition with controlled carbon and nitrogen levels achieves high surface fatigue strength through precise alloying.

Controlling the dew-point temperature during continuous annealing suppresses surface segregation and ensures uniform chemical conversion film formation.

A zirconium and vanadium inorganic conversion coating composition applied to ferrous metal surfaces.

Lubricant coatings on oil tempered wires reduce friction to maintain spring shape consistency during high-strength steel winding.

A dual-layer alumina barrier prevents Cr-oxide detachment and carbon penetration in austenite alloys, extending operational life.

Molten salt bath introduces diffusible carbon into stainless steel surfaces to increase hardness and wear resistance.

Adding aluminum and nickel to Sn-Ag solders improves compliance while maintaining fatigue resistance.

Continuous simultaneous gas injection ensures homogeneous surface layer composition, resolving uneven treatment issues in complex geometries.

Replace costly chemical vapor deposition with electroplating indium and tin to lower equipment expenses while maintaining coating quality.

A method for treating inner wall surfaces of containers and pipes using ozone gas contact.

Halogen activating gas accelerates surface hardening of stainless steel at low temperatures, preventing chromium depletion and eliminating soot formation.

Polymer templates guide metal layer deposition to resolve resolution limits and melt pool instabilities, enabling sub-500 μm walls.

Ferritic nitrocarburizing forms an iron nitride layer on steel parts to enhance tensile strength while preserving ductility.

Tumbling and duplex hardening induce deep compressive residual stress to resolve insufficient rolling contact fatigue resistance in aerospace bearings.

An aluminized layer paired with a TiO2 film reduces internal stress and prevents metal penetration in solar thermal heat exchange tubes.

Ti and Nb precipitates suppress coarse grain formation during high-temperature carburizing, preventing heat treatment strain while maintaining cold workability.

Soft-nitriding the output shaft outer surface resolves miniaturization contradictions by maintaining torque detection sensitivity and durability.

Vacuum heating with mixed gas prevents internal oxidation and decarburization, achieving deep surface hardening without contamination.

Thermal diffusion creates an adherent zinc barrier that prevents contact corrosion between steel and aluminum without toxic cadmium.

Partial gasification of waste polymers generates a hardening medium for ferro-alloy carburizing, reducing manufacturing costs and equipment complexity.

A nickel-based alloy surface treatment uses alkaline cleaning and low-temperature oxidation to form a dense passivation layer.

Alloy composition with specific Si, Ni, Cu, and Cr ratios suppresses carbide formation to prevent excess carbon accumulation at edge-shaped parts.

Controlled carburization of martensitic stainless steel forms a hardened case with specific carbide distribution.

Alkaline ferrization deposits an iron layer on zinc to resolve cut-edge corrosion and bimetallic contact issues in automotive steel.

Real-time hydrogen monitoring enables closed-loop control of donor gas flow, ensuring consistent surface composition without complex pre-testing.

Selective etching of oxidized monolayers yields high-aspect-ratio nanoribbons with controlled dimensions.

A gold alloy forms an interference thin film to produce patination colors.

A homogeneous aluminide paste protects turbine internal surfaces.

A coating apparatus mixes sucked and supplied gases as a carrier gas to transport solid powder through a vacuum chamber.

A composite annealing separator applies tensile stress via thermal expansion differences to reduce iron loss in oriented electrical steel sheets.