ZuoTi.Pro
Question

For a carburization process taking place over 193 seconds, use the standard BCC iron activation energy...

For a carburization process taking place over 193 seconds, use the standard BCC iron activation energy and diffusion constant to calculate the temperature in K needed to reach a concentration of 0.5 at a depth of 48 micrometers, if the initial carbon concentration of the steel is 0.1 wt% and the imposed surface concentration is equivalent to 1.5 wt%.

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
For a carburization process taking place over 193 seconds, use the standard BCC iron activation energy...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A-For a carburization process taking place at 779.9 K, use the standard BCC iron activation energ...

    A-For a carburization process taking place at 779.9 K, use the standard BCC iron activation energy and diffusion constant to calculate the time needed to reach a concentration of 0.4 at a depth of 64 micrometers, if the initial carbon concentration of the steel is 0.1 wt% and the imposed surface concentration is equivalent to 1.2 wt%. b- For a carburization process taking place over 412 seconds, use the standard BCC iron activation energy and diffusion constant to calculate the...

  • 1) You find that carbon takes 259 s to diffuse to a concentration of 0.5 wt%...

    1) You find that carbon takes 259 s to diffuse to a concentration of 0.5 wt% at a depth of 0.1 mm in BCC iron if the intitial concentration is 0.2 wt% and the surface is maintained at 1 wt% at 863 K. At temperature 888 what diffusion time will be needed? 2) You find that carbon takes 553 s to diffuse to a concentration of 0.5 wt% at a depth of 0.1 mm in BCC iron if the intitial...

  • Please answer all the three questions.. Please please 7. (8 points) Carburization is an industrial process...

    Please answer all the three questions.. Please please 7. (8 points) Carburization is an industrial process to harden steel components through diffusion. It is done at elevated temperature because a. Steels have high yield strength b. Catoms can penetrate into the component's surface through vacancy diffusion c. Catoms can penetrate into the component's surface through interstitial diffusion d. Diffusivity is high at elevated temperature 8. (15 Points) The bonding energy Ex between two atoms is a function of interatomic distance...

  • 6.5 18. (8 pts) The Diffusivity of nitrogen in y-iron is 4 times higher at 1200°C...

    6.5 18. (8 pts) The Diffusivity of nitrogen in y-iron is 4 times higher at 1200°C than at 950 C. (a) Find the activation energy for nitrogen diffusion in iron. R 1.987 cal/mol-K Do exp (1.987- wal vevisit lo ala exo 29 26, 451 l 2430. 10 alalS 29 24.851 2430 29 2a 24 30. 19. (10 pts) To improve the wear resistance of a steel gear, a carburization process is employed to harden the surface of the machine element...

  • UTVER VIS Concentration of Nitrogen (wt%): = 0.21 Position in mm= 7.2 Diffusion Coefficient for Nitrogen...

    UTVER VIS Concentration of Nitrogen (wt%): = 0.21 Position in mm= 7.2 Diffusion Coefficient for Nitrogen in Iron at 700°C -8.90E-10 Nitrogen in Iron Heat Treatment Time (hours): = 8 Carburizing Time (hrs): = 7 Steel Alloy Case Depth (mm): 4.8 Steel Alloy New Case Depth (mm) - 9.9 Activation Energy kJ/mol: = 103 Temperature for Problem 3 (Celsius) -809 . Data for Problem 4 Temperature in C: -595 Diffusivity (m2/s) = 5.62E-14 Temperature in C: -702 Diffusivity (m /s)...

  • Please show work for problems 1-4 1. Calculate the activation energy for vacancy formation in aluminum,...

    Please show work for problems 1-4 1. Calculate the activation energy for vacancy formation in aluminum, given that the equilibrium number of vacancies at 500°C (773 K) is 7.57 x10m3. The atomic weight and density (at 500°c) for aluminum are 26.98 g/mol and 2.62 g/cm, respectively 2. What point defects are possible for Al,0, as an impurity in Mgo? How many Al ions must be added to form each of these defects? 3. A sheet of steel 4.5 mm thick...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT