Engineering Materials Week

Engineering Materials Week

The room temperature tensile strengths of pure copper and pure silver are 209 Amp and 125 Amp- a). Make a schematic graph of the room temperature tensile strength versus composition for all compositions between pure cooper and pure silver. B). On the same graph schematically plot tensile strength versus composition at DOC. C). Explain the shapes of these two curves, as well as any differences between them.

Silver is insoluble in cooper due to there being no a-phase region and ice versa for the ;-phase region. Therefore only the a and phase will exist at room temperature for all compositions. The tensile strengths of each Of these phases are determined by: In which TTS and V denote the tensile strength and volume fraction and the subscripts denote the phases. At ICC the curve will be shifted to lower tensile strengths since tensile strength diminishes with increasing temperature. 9. 41 What is the principal difference between congruent and incongruent phase transformations?

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