Sungkyunkwan University Research & Business Foundation, Suwon, Gyeonggi-do, KR
Compared with existing common 1XXX and 3XXX commercial aluminum heat exchangers, this developed material improves the corrosion service life by 1.5 to 2 times although there is almost no increase in cost (within 10%). Compared to advanced commercial products with equivalent level of corrosion service life, the unit cost of production is 50% to 70% level. Conventional technology improves corrosion resistance by suppressing corrosion of tubes of heat exchangers through surface treatment. It mainly uses cladding, zinc coating, chromium plating, electrodeposition coating and so on. These technologies improve the corrosion resistance of aluminum, but the additional cost increases are high. Also, when the surface layer breaks, propagation of corrosion cannot be prevented. Through the addition of an extremely small amount of alloy elements and improvement of the heat treatment process, this technique nanosizes and controls the particles in the aluminum metal structure. The corrosion propagation form was transformed from localized corrosion form to uniform corrosion form. This improves the resistance of the tube to corrosion penetration and delays the leakage time. This technology enables the development of low-cost, high-corrosion-resistant materials in a simple and effective manner.
Primary Application Area: Materials, Chemical
Technology Development Status: Ready to Market
Technology Readiness Level: TRL 8
Organization Type: Academic/Gov Lab
Showcase Booth #: 305
GOVT/EXTERNAL FUNDING SOURCES