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1. Molybdenum forms a substitutional solid solution with tungsten. Compute the number of molybdenum atoms per cubic centimeter for a molybdenum-tungsten alloy that contains 16.4 wt% Mo and 83.6 wt% W. The densities of pure molybdenum and tungsten are 10.22 and 19.30 g/cm3, respectively.
2. Niobium forms a substitutional solid solu- tion with vanadium. Compute the number of niobium atoms per cubic centimeter for a niobium-vanadium alloy that contains 24 wt% Nb and 76 wt% V. The densities of pure pure Ge and Si are 5.32 and 2.33 g/cm3, respectively.
3. Iron and vanadium both have the BCC crys- tal structure, and V forms a substitutional solid solution for concentrations up to ap- proximately 20 wt% V at room temperature. Compute the unit cell edge length for a 90 wt% Fe-10 wt% V alloy.
a 3-stroke cycle is executed in a closed system with 1 kg of air and it consists of the following three processes a
A disc 40 cm in diameter and 5 cm thick is to be cast using pure aluminium in an open mould operation. The melting point of aluminium is 660°C, and the pouring temperature will be 800°C.
In an interview for a manufacturing engineering position, you have been told that a certain product was not performing as intended and that changes needed to be made to a few of the features on the component such as shaft sizes and hole dia..
Determine a symbolic expression for the total thermal resistance of wall, including inside and outside convection effects for prescribed conditions.
consider an accelerometer with a natural frequency of 800 hz and a damping ratio of 0.6. determine the frequency range
This will help them confirm or deny that this company is selling equipment that is used directly in the torture of political prisoners. Discuss the ethical dilemmas that this request raises and how you would react to this request.
A cylindrical pressure vessel of 120 in diameter outside, used for processing rubber, is 36 ft. long. If the cylinder portion of the vessel operates at 120 psi internal pressure, what are the stresses acting on an element at the inside surface of the..
water vapor in a piston-cylinder assembly undergoes a process from saturated vapor at 150 c to a pressure of 300 kpa.
Consider a 210-MW steam power plant that operates on a simple non-ideal Rankine cycle, where the isentropic efficiency for both the turbine and the pump is 85%. Steam enters the turbine at 10 MPa and 500C and is cooled in the condenser at a pressure ..
Determine the number of independent slip systems for crystals with each of the following combinations of slip systems. (The simplest way to do this is to de- termine how many of the strains ε1, ε2, γ 23, γ 31, and γ 12 can be independently imposed ..
question 1 what four processes make up the ideal rankine cycle? what is happening in an actual power plant during the
In a single screw extruder, rice starch, soy protein and water were mixed in the mass ratio of 60:35:5. The homogeneity of the mixture was assessed in terms of mixing index (MI). Ten random samples were drawn from the final blended mass, and starch-p..
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