Solid State Diffusion Coating TRIZ Cases

Deposits aluminum or gallium doped zinc oxide films on hot glass substrates using atmospheric pressure chemical vapor deposition.

Two-stage shot peening generates compressive residual stress and reduces surface roughness in carburized steel, resolving the embrittlement trade-off.

Tapered graphite rods minimize contact stress on a tantalum member during carburization, preventing planar part deformation and opening enlargement.

A single-step oxidation process forms a dense chromium oxide layer on substrates using water vapor and hydrogen gas at 600°C.

Optimized nickel-cobalt steel composition avoids primary carbide formation to deliver high surface hardness while maintaining core toughness.

A nitrided steel part utilizes controlled nitriding potential to form a compound layer predominantly consisting of gamma prime phases.

Controlling retained austenite in shot peened steel yields compressive residual stresses exceeding 60 percent of yield strength without stress shot peening.

Pump forces electroless nickel solution through heat exchanger tubes to prevent mineral scale deposits and maintain thermal conductivity.

Preliminary carburizing enables deep nitrided layer formation on low-carbon ferritic stainless steel, resolving insufficient hardness and corrosion resistance.

Cold spray deposition creates a porous metallic bond coat that reduces thermal conductivity in turbine engine components.

Controlled carbon and nitrogen content prevents nozzle clogging during atomization, ensuring uniform hard phase distribution in the final material.

Mass flow and pressure controllers regulate cooling gas to stabilize lamp temperature, resolving oxide film thickness non-uniformity.

Pack cementation diffusion creates a corrosion-resistant coating on steel pipes, addressing maintenance costs from biomass combustion damage.

Spraying coolant onto bent sections of hollow stabilizers during quenching overcomes slow inner surface cooling to boost fatigue durability.

Nitriding, oxidation, and impregnation form protective layers on steel to prevent oil transfer while maintaining size dimensions.

Solid carburizing and gas co-infiltration produce a several-hundred-micron hardened layer that resolves the thickness-brittleness trade-off in titanium alloys.

A trivalent chromate solution deposits a protective coating on aluminum alloys using zinc, cobalt, nickel, and fluorine additives.

Nitriding and dual oxidation steps form a uniform dark finish on carbon steel golf club heads.

Hydrogen cleaning removes oxide barriers from high-alloy steel, enabling homogeneous nitride layer formation during vacuum heat treatment.

A composite stainless steel cutting element with a hardened peripheral edge and softer central area optimizes hardness balance for electric shavers.

Annealing stainless steel wire at 425 to 600°C forms Mo-N clusters that enhance strength and workability.

A mask with a deformable sealing washer and tightening bushing shields specific part portions, compensating for thermal expansion mismatches that damage parts.

Vacuum carburizing controls temperature and time to dissolve grain boundary cementite, preventing coarse carbides that reduce bending fatigue strength.

Alloy steel composition forms an oxide film under high processing load to suppress carburization during heat treatment.

Preliminary surface treatments resolve the contradiction between low-cost casting and high surface quality, enabling uniform oxide layers on medical implants.