Engineering, 11.02.2021 18:00 qurreab26
For a steel alloy it has been determined that a carburizing heat treatment of 11.9 h duration will raise the carbon concentration to 0.39 wt% at a point 2.1 mm from the surface. Estimate the time necessary to achieve the same concentration at a 6.2 mm position for an identical steel and at the same carburizing temperature.
Answers: 1
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Avertical steel rod of length 2.0 m and diameter 25 mm is rigidly fixed at its upper end and has a flange at its lower, free, end. what will be the maximum stress produced in the rod when a load of 20 kn is applied, (a) gradually to the lower end, (b) suddenly to the lower end, (c) by a collar falling from a height of 50 mm on to the flange?
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For a steel alloy it has been determined that a carburizing heat treatment of 11.9 h duration will r...
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