Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Cadmium Diffusion into Steel
Does anyone have any information concerning whether cadmium is able to diffuse into a high-carbon steel (thus causing a reduction in tensile strength)after approximately 20 years of storage at ambient conditions?
Marc PepiUS Army - Aberdeen Proving Ground, Maryland
1999
Dear Marc, Yes the cadmium is causes warm corrosion with a temperature about over 300 °C. I don't know what that becomes in Fahrenheit. You can use a nickel layer to eliminate that corrosion about 10 microm nickel as a first layer. Regards Anders.S
Anders Sundman
4th Generation Surface Engineering
Consultant - Arvika,
Sweden
1999
Cadmium has no affinity for steel at normal room temperatures (<120 °F). That is one reason why it is difficult to stick it to steel in plating. The probability of reduction in strength by hydrogen is orders of magnitude more.
Mandar Sunthankar- Fort Collins, Colorado
1999
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