What is Thermogalvanic Corrosion

Temperature changes can alter the corrosion rate of a material and a good rule of thumb is

that 10 oC rise doubles the corrosion rate. If one part of component is hotter than another the

difference in the corrosion rate is accentuated by the thermal gradient and local attack occurs in a zone between the maximum and minimum temperatures. The best method of prevention is to design out the thermal gradient or supply a coolant to even out the difference.

Corrosion main