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What are the objectives of annealing?
Slow cooling rate from the eutectoid temperature yields course pearlite - a mixture of relatively coarse crystals of ferrite and cementite. Such a slow cooling is known as annealing. Here, sufficient time is available for the carbon in the austenite to disperse and redistribute itself to 0.02% in ferrite and 6.67% in cementite. During annealing, effective transformation temperature is decrease, where the rate of growth is rapid compared to the rate of nucleation. Therefore, spheroidising is obviously different from annealing.
c). at what speed does it hit the ground? d). what total length of time is the ball in the air
Surface Mount Devices (SMDs) are new components designed with soldering pads or short leads. They are much smaller in size as compared to leaded components. The SMDs are directly a
Steel: Steel contains iron with a small percentage of carbon added it. Iron itself is not very strong but the additions of small percentage of carbon in it decrease the ductility
crude oil distillaiton
Q. Under fixed exchange rate, show using a figure, the effects of an expansionary fiscal policy. Show the equilibrium under a flexible exchange rate. Discuss the difference in t
An industrial process involves the evaporation of water from a liquid film that forms on a contoured surface. Dry air is passed over the surface, and from laboratory measurements t
A high-performance dragster with a mass of m = 1333 kg can accelerate at a rate of a = 23.5 m/s2. Write an expression for the magnitude of the net force, FNET, that propels the dr
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.40 m above. The brother's outstretched hand catches the keys 1.30 s later. (a) W
Determine the axial force in the link AB of the lifting tongs which cross without touching. The weight of the crate is P44 kN and the width of the box is P45 mm The axial for
When deforming forces are applied to a body, there is a change in the size of the body. The object is known as strained or deformed. The ratio of change in dimension to the origina
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