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Both a Ti-15% V alloy and a Ti-35% V alloy are heated to a temperature at which all β just forms. They are then quenched and reheated to 300°C. Describe the changes in microstructure during the heat treatment for each alloy, including the amount of each phase. What is the matrix and what is the precipitate in each case? Which is an age-hardening process? Which is a quench and temper process? [See Figure 14-13(a)].
Figure 14-13(a)
A 4 inch diameter composite shaft is subjected to the torques shown below. The sections are perfectly bonded rigidly together. Use GSTEEL= 11,600 ksi and GALUMINUM =4000 ksi. Determine the maximum shearing stress in the shaft and the magnitude of the..
The 95% confidence interval associated with the corrected counting rate.
the piston has no mass and no friction. there is 2 kg of water and the initial temp is 99.61 c and initial volume is
A uniform solid circular cylinder of density 0.5p floats in a liquid of density p with its axis upright. The radius and height of the cylinder are R and 2R, respectively. Determine the mecacentric height and analyze the static stability of the floati..
air flow enters a constant-area insulated duct with a mach number 0.2. the duct diameter is 10 mm and the friction
A bar made from a material with a elasticity of 122 GPa and with a cross sectional area of 17 cm2 is attached at point C to a spring with a constant k of 322 MN/m. The lengths L1 and L2 are 0.1 m and 0.4 m, respectively. If the force has a magnitude ..
Find the reciprocating mass and the relative angular position for each of the inner cranks, if the length of each crank is 350 mm, the length of each connecting rod 1.7 m and the engine speed is 500 rpm.
a painter is standing on a work platform that is 27 feet above ground level. for fall protection the workers safety
a closed feedwater heater of a rankine cycle is used to heat the working fluid water from a state of 370acircdegf
A company is trying to decide which machine to purchase based on the following information. If they all have 15 years useful life and MARR is 10%, use incremental rate of return analysis in Excel to decide which one is the best choice. Don't forge..
find the stresses developed in the machine. Use two beam elements for the column and one beam element for the arm. Assume the material of the machine as steel.
The true stress-strain curve of a material obeys the power-hardening law with n = 0.18. A piece of this material was given a tensile strain of ε = 0.03 before being sent to a laboratory for tension testing. The laboratory workers were unaware of th..
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