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AakashSingh
AakashSinghCopper
Asked: June 2, 2021In:

In a binary system of A and B the melting temperature of pure A is 1050°C and the melting temperature of pure B is 1900°C. At 1250°C, the α solid solution (containing 50% of B), the β solid solution (containing ...Read more

In a binary system of A and B the melting temperature of pure A is 1050°C and the melting temperature of pure B is 1900°C. At 1250°C, the α solid solution (containing 50% of B), the β solid solution (containing 80% of B) and liquid (containing 30% of B) are in three phase equilibrium. At room temperature, the maximum solubility of B in the α phase is 30% and the maximum solubility of A in the β phase is 10%. Sketch the phase diagram of A and B, showing the phases present in each area of the diagram. What is the reaction that takes place at 1250°C?

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AakashSingh
AakashSinghCopper
Asked: June 8, 2020In:

A varying torque of 30 kN m to 80 kN m is applied to the end of a shaft. The shaft material has a yield strength of 30 MPa and the endurance limit (S’e) of 250 MPa with derating factors ...Read more

A varying torque of 30 kN m to 80 kN m is applied to the end of a shaft. The shaft material has a yield strength of 30 MPa and the endurance limit (S’e) of 250 MPa with derating factors ka =0.85, kb = 0.82, kc = 0.6. Notch sensitivity q=0.9 and stress concentration factors kt= 1.39. Find out the shaft diameter. Take factor of safety (FOS)=1.6.

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AakashSingh
Poll
AakashSinghCopper
Asked: May 2, 2020In:

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Poll Results

33.73%stored energy of cold work ( 28 voters )
12.05%vacancy Concentration ( 10 voters )
13.25%dislocation density in the crystal ( 11 voters )
40.96%grain boundary curvature ( 34 voters )
Based On 83 Votes

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