Abstract
1. It has been established that the thermal conductivity of alloys sulfidized by the addition of sulfur in powder form to starting powder mixtures is higher, by 7–14% at 100°C and 30–40% at 600°C, than that of the same alloys sulfidized by a process consisting of impregnation in molten sulfur and subsequent annealing. 2. The specific heats and coefficients of linear expansion of alloys sulfidized by these two methods are approximately equal. 3. Comparison of the two methods of sulfidizing of iron-copper-carbon bearing alloys (see Paragraph 1) reveals the superiority of the method involving the addition of powdered sulfur to starting powder mixtures, which enables higher thermophysical properties to be attained and does not necessitate an additional operation in the manufacture of parts.
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