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Design an Al-Si brazing filler alloy that will be used to join an Al-Mg alloy. The Al-Mg alloy has a solidus temperature of 655oC. How many phases will be present in the Al-Mg alloy at room temperature? How many phases will be present in the Al-Si alloy at room temperature? (Brazing is a joining process that produces coalescence of materials by heating tem to the brazing temperature in the presence of a filler metal (alloy) having a liquidus above 450 C (840 F) and below the solidus of the base metal.)
The assessment to design a substation and the associated protection System.
What are stress concentrations, what causes them, and why should engineers be concerned about them?
problem a tension link shown to the right is used in earth-moving equipment and is subjected to cyclic stresses varying
steam enters a urbine at 25 mpa 550c and exits at 5 mpa 325c at a flow rate of 70 kgs. determine the total power output
hot air is contained in a vertical frictionless piston-cylinder device.the piston has a mass of 4 kg and a
saturated liquid water is heated at constant pressure in a steady-flow device until it is a saturated vapor. calculate
a 2.0 kg of water at 90 deg. c and 1 bar is placed in a vertical cylinder and sealed with a massless piston. the piston
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
a ball is projected from point a with a inital speed of v at an angle of 25 degrees above the x-axis. the ramp ab is at
Determine the natural frequencies of the system. For the baseline system I get natural frequencies at the following engine speeds: 435, 2026, 2818, 5225, 7093, 10245, and 12153 rpm.
A vertical run of copper tubing, 5 mm in diameter and 20 cm long, carries condensation vapor at 60 °C through 27°C air. What is the total heat loss?
a car with mass 3250 lbm is driven at 60 mih when the brakes are applied to quickly decrease its speed to 20 mih.
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