3. (10 points) Given the Weertman-Ashby map for silver, determine the dominant creep mechanism if the...

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3. (10 points) Given the Weertman-Ashby map for silver, determine the dominant creep mechanism if the part will operate under a tensile stress of 100 MPa at a temperature of 715 C. (Tm=1235 K, E = 83 GPa) Will changing the grain size or introducing a dispersion hardening mechanism be more important in this regime? Explain based on the Mukherjee-Bird-Dorn equation of the form: = A DGb kT on 3. (10 points) Given the Weertman-Ashby map for silver, determine the dominant creep mechanism if the part will operate under a tensile stress of 100 MPa at a temperature of 715 C. (Tm=1235 K, E = 83 GPa) Will changing the grain size or introducing a dispersion hardening mechanism be more important in this regime? Explain based on the Mukherjee-Bird-Dorn equation of the form: = A DGb kT on