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Selection of Materials to Resist Failure
Published in Mahmoud M. Farag, Materials and Process Selection for Engineering Design, 2020
Over half of the tin production is used as protective coatings of steels and other metals. In addition to its corrosion resistance, tin is nontoxic and it provides a good base for organic coatings. This explains its wide use in coating the steel cans, tin cans, used for the storage of food products and beverages. Tin is normally cathodic to iron, but the potential reverses in most sealed cans containing food products and the tin acts as a sacrificial coating, thus protecting steel. Tin is also resistant to relatively pure water and dilute mineral acids in the absence of air. This makes it suitable for coating copper pipes and sheets in contact with distilled water and medicaments. Tin is attacked by strong mineral acids and alkalis.
Corrosion properties of CVD grown Ti(C,N) coatings in 3.5 wt-% NaCl environment
Published in Corrosion Engineering, Science and Technology, 2018
Linus von Fieandt, Kristina Johansson, Erik Lindahl, Tommy Larsson, Mats Boman, David Rehnlund
CVD is routinely used to grow uniform and dense coatings of Ti(C,N) with excellent mechanical properties [8,9]. The technique offers a high step coverage and is therefore particularly adapt to coat complicated geometrical shapes and porous substrates. The technique has for instance been used to coat steel substrates, due to the moderate temperature needed to grow Ti(C,N) thin films (i.e. <830°C) [1]. Insights into the chemical stability can be obtained by investigating the electrochemical properties and more specifically the corrosion properties in different environments. While plenty of corrosion studies of TiC and TiN can be found in the literature [10–14], Ti(C,N) has been significantly less investigated [1,7,15].