Final answer:
To estimate the yield strength of the alloy, we can use the concept of Hall-Petch equation. However, without the specific details about the alloy, it is difficult to provide an exact estimate.
Step-by-step explanation:
The yield strength of a material is the amount of stress it can withstand before it permanently deforms.
In this case, we are given the yield strength of an uncold-worked brass specimen with an average grain size of 0.006 mm, which is 174 MPa. We are asked to estimate the yield strength of the alloy.
To estimate the yield strength of the alloy, we can use the concept of Hall-Petch equation.
According to the equation, the yield strength of a material is inversely proportional to the square root of the average grain size.
Hence, as the grain size decreases, the yield strength increases.
Assuming that the alloy has a similar microstructure to the brass specimen, we can estimate that the yield strength of the alloy will be higher than 174 MPa.
However, without the specific details about the alloy, it is difficult to provide an exact estimate.