7. Corrosion resistance of boilers
The choice of a construction material for a device must take into account not only operating conditions, but also the effect of processing operations (forming, welding, surface finishing).
Preferential weld corrosion" is a phenomenon regularly reported by users, which can have complex origins.
The following information is intended to make users aware of the influence of certain metallurgical phenomena related to processing on service life.
7.1 Hardening effect
Cold forming of tubes, ferrules or heads leads to work-hardening of stainless steels, as well as the development of residual tensile stresses. For the most sensitive grades, these two effects can lead to increased susceptibility to stress corrosion....
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Corrosion resistance of boilers
Washing and testing water
Bibliography
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In Engineering Techniques
On stainless steels
On forming
About welding
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