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Abstract
The chemical diffusion coefficients and the solubility limits of iron in copper were determined in the temperature range 650–1050 °C by electron probe microanalysis. Specimens were 99.999% copper single crystals. The diffusion is best described by two regression lines: DFe-Cu=0.504 exp(−49740/RT) cm2/s for the temperature interval 1050–800 °C and DFe-Cu=0.091 exp(−46140/RT) cm2/s for the temperature interval 800–650 °C. The solubility of iron in copper is given to logC=2.951−3357(1/T °K) wt% in the temperature range 1050–650 °C.
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