Atmospheric corrosion of Cor-Ten steel with different surface finish: Accelerated ageing and metal release

作者：Chiavari C^*; Bernardi E; Martini C; Passarini F; Motori A; Bignozzi M C

来源：Materials Chemistry and Physics, 2012, 136(2-3): 477-486.

DOI：10.1016/j.matchemphys.2012.07.014

• Metals
• Weathering steel
• Corrosion test
• Artificial weathering
• Polarisation curves

Cor-Ten steel is widely used in architecture, for its aesthetical and technological features (i.e. auto-protection from atmospheric corrosion). However, environmental conditions and exposure geometry strongly affect resistance to corrosion. This work focuses on the corrosion behaviour of Cor-Ten with different surface finish typically adopted in art/architecture (bare/pre-patinated/pre-patinated and waxed) in stagnant or runoff conditions. The evolution of the exposed surfaces and the metal release are followed as a function of exposure time. The results showed that pre-patination has no beneficial effects on corrosion and, in stagnant conditions, the high metal release suggests the need of field investigations to evaluate possible adverse effects on the environment.

• 出版日期2012-10-15