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Validation of passivation treatment on stainless steel in laboratory
As an industrialist, you wish to validate the surface treatment of your stainless steel products
What is passivation treatment?
Passivation treatment is a technique used to prevent corrosion of certain metals, such as stainless steel, aluminium and titanium. Passivation is a process that removes impurities from the surface of the metal, such as iron particles, oils and greases, that can cause corrosion.
Passivation treatment can be carried out in a number of ways. However, the most common process is to immerse the metal part in a solution of nitric acid or citric acid. This solution dissolves impurities from the metal surface and creates a protective oxide layer that prevents corrosion.
Why have a passivation treatment validated by a laboratory?
Passivation treatment is often used by the pharmaceutical industry, in medical applications and surgical implants, where corrosion can cause health risks. It is also used in the petrochemical and shipbuilding industries to prevent corrosion of metal equipment and structures exposed to corrosive environments.
Our solutions: characterise the surface of your materials and measure the effectiveness of your passivation baths
Thanks to its dual competence in chemistry and materials, the FILAB laboratory has the expertise and analytical tools necessary to validate passivation treatments on stainless steel and to analyse the associated treatments.
The FILAB laboratory can provide various services related to the passivation of a material:
Study of the evolution of the surface over time
Salt spray test to assess the degradation time of the part
Analysis of surface failures (corrosion, breakage, impurities, etc.)
Analyses according to ASTM A967/967M
Analysis of surface treatment baths
Analysis of the chemical composition of baths
Validation of passivation processes
Study of the evolution of bath properties
For this purpose, FILAB has a 2100m² analytical park composed of state-of-the-art tools such as a Scanning Electron Microscope (SEM-FEG EDX) for the study of surfaces or several AES ICPs or CI for the analysis of bath composition.