subject
Engineering, 05.10.2019 12:00 christophercordero15

For a steel alloy it has been determined that a carburizing heat treatment of 14 h duration at 763°c will raise the carbon concentration to 0.46 wt% at a point 2.2 mm from the surface. estimate the time necessary to achieve the same concentration at a 5.3 mm position for an identical steel and at a carburizing temperature of 1000°c. assume that do is 1.5x10^-5 and qd is 104 kj/mol.

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 03:10
What precautions should you take to prevent injuries when dealing with heavy loads?
Answers: 1
question
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
question
Engineering, 04.07.2019 18:10
Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.
Answers: 3
question
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
You know the right answer?
For a steel alloy it has been determined that a carburizing heat treatment of 14 h duration at 763°c...
Questions
question
Mathematics, 05.05.2021 22:30
question
Mathematics, 05.05.2021 22:30
question
Mathematics, 05.05.2021 22:30