Engineering, 21.12.2019 02:31 keyairareid7
What is the function of alloying elements (e. g., cr, v, w, and mo) in tool steels? a. the alloying elements in tool steels combine with the carbon to form easily melted carbide compounds. b. the alloying elements in tool steels improve the capacity of these alloys to be heat treated. c. the alloying elements in tool steels improve the corrosion resistance. d. the alloying elements in tool steels give rise to a variety of strength-ductility combinations. e. the alloying elements in tool steels combine with the carbon to form very hard and wear-resistant carbide compounds.
Answers: 3
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 19:10
Starting wih an energy balance on a rectangular volume element, derive the one- dimensional transient heat conduction equation for a plane wall with constant thermal conductivity and no heat generation.
Answers: 1
Engineering, 04.07.2019 19:20
At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2
Answers: 2
What is the function of alloying elements (e. g., cr, v, w, and mo) in tool steels? a. the alloying...
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