Surface treatment technology for aluminum alloys using the steam process [Shibaura Institute of Technology]

Simultaneously imparting corrosion resistance and strength to aluminum alloys in a single process.

This technology is a groundbreaking surface treatment technique that simultaneously imparts corrosion resistance and strength to aluminum alloys in a single process. By conducting steam treatment, a γ-AlO(OH) film is formed on the surface of the aluminum alloy, and the formation of nanoclusters within the substrate progresses due to heat, achieving both corrosion resistance and strength enhancement at the same time. As a vapor-phase treatment, it is optimal for processing components with large surface areas and complex shapes, and it is a technology that enables environmental load reduction and cost reduction without using chemical agents containing heavy metals. Features of the technology: - Coating properties: High corrosion resistance, excellent adhesion (evaluation results available) - Substrate properties: Improved strength, enhanced fatigue life (evaluation results available) - Low environmental load, simple process, and low cost without using chemical agents Expected application areas: - Surface treatment for heat exchangers, electronic devices, precision instruments, automotive materials, construction components, etc.

aluminum