# Heat Treatment and Surface Hardening - II

- Institution: IIT Kanpur
- Department: Mechanical Engineering
- Taught by: Prof. Kallol Mondal, Prof. Sandeep Sangal
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/112104219)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/112104219)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

## Lectures

1. [Lecture-1:Recap - I](https://invisiblenetwork.ai/learn/nptel/112104219/eddfbc4801ca) (Video)
2. [Lecture-2:Recap - II](https://invisiblenetwork.ai/learn/nptel/112104219/4a9c7fad3e37) (Video)
3. [Lecture-3:Recap - III](https://invisiblenetwork.ai/learn/nptel/112104219/02eb268de61c) (Video)
4. [Lecture-4:Determination of Phase Diagram (Experimentally) - I](https://invisiblenetwork.ai/learn/nptel/112104219/718502c0187f) (Video)
5. [Lecture-5:Determination of Phase Diagram (Experimentally) - II](https://invisiblenetwork.ai/learn/nptel/112104219/1c5b3dc6e7b5) (Video)
6. [Lecture-6:Determination of Phase Diagram (Thermodynamically)](https://invisiblenetwork.ai/learn/nptel/112104219/871e7883fcbc) (Video)
7. [Lecture 7:Effect of pressure on phase transformation temperature and concept of equilibrium between condensed and vapor phase](https://invisiblenetwork.ai/learn/nptel/112104219/32b6dbe064e3) (Video)
8. [Lecture -8 : Effect of different parameters on heat treatment and concept of saturation vapor pressure with examples](https://invisiblenetwork.ai/learn/nptel/112104219/7469e5b29aa5) (Video)
9. [Lecture -9 Title: Formation of ideal solid or liquid solution and (G-X) diagrams for ideal solutions (Part-I).](https://invisiblenetwork.ai/learn/nptel/112104219/9c34bb7dab31) (Video)
10. [Lecture-10: G-X diagrams (Part- II) and concept of chemical potential (Micro Sign) from G-X diagrams.](https://invisiblenetwork.ai/learn/nptel/112104219/ca5c118431bb) (Video)
11. [Lecture-11:Concept of common tangent for equilibrium between two phases](https://invisiblenetwork.ai/learn/nptel/112104219/5945895fd3e5) (Video)
12. [Lecture-12:Expressions for equilibrium of two phases - I](https://invisiblenetwork.ai/learn/nptel/112104219/44f70dbc02e7) (Video)
13. [Lecture-13:Expressions for equilibrium of two phases - II](https://invisiblenetwork.ai/learn/nptel/112104219/9ab1ef916491) (Video)
14. [Lecture-14:Expressions for equilibrium of two phases - III](https://invisiblenetwork.ai/learn/nptel/112104219/f3d0c7b69409) (Video)
15. [Lecture-15:Determining nucleation of phases using G-X plot](https://invisiblenetwork.ai/learn/nptel/112104219/a43201dc2863) (Video)
16. [lecture-16: ΔG for nucleation and overall transformation, concepts of solid state transformation including precipitation and Quasi-Chemical Model (QCM)](https://invisiblenetwork.ai/learn/nptel/112104219/a074888d5132) (Video)
17. [lecture 17: Introduction to real solutions and expression of ΔHmix based on the Quasi-Chemical Model (QCM)](https://invisiblenetwork.ai/learn/nptel/112104219/e22af13de107) (Video)
18. [lecture-18: Expression for ΔHmix as a function of interaction energy and mole fraction, based on the QCM (Part-I)](https://invisiblenetwork.ai/learn/nptel/112104219/b156a1761e32) (Video)
19. [lecture: 19 Expression for ΔHmix as a function of interaction energy and mole fraction, based on the QCM (part-II)](https://invisiblenetwork.ai/learn/nptel/112104219/d6001e6d6b65) (Video)
20. [lecture-20: Graphical representation of ΔGmix, ΔHmix, and -TΔSmix for real solutions and evolution of eutectic phase diagram from the G-X plots](https://invisiblenetwork.ai/learn/nptel/112104219/ae0a1754817f) (Video)
21. [Lecture 21: Effect of ΔHmix on determination of phase diagrams (same crystal structure)](https://invisiblenetwork.ai/learn/nptel/112104219/64c54932b82a) (Video)
22. [Lecture 22: Effect of ΔHmix on determination of phase diagrams contd..](https://invisiblenetwork.ai/learn/nptel/112104219/d3cc7aadc0b4) (Video)
23. [Lecture 23: Importance of phase diagrams](https://invisiblenetwork.ai/learn/nptel/112104219/0c45440a4aa5) (Video)
24. [Lecture 24: Effect of heat treatment on microstructure evolution in steel -I](https://invisiblenetwork.ai/learn/nptel/112104219/12c84f083510) (Video)
25. [Lecture 25: Effect of heat treatment on microstructure evolution in steel -II](https://invisiblenetwork.ai/learn/nptel/112104219/2677e62188eb) (Video)
26. [Lecture-26:Recap of homogeneous and heterogeneous nucleation for solid to solid transformation.](https://invisiblenetwork.ai/learn/nptel/112104219/c9f7f222d681) (Video)
27. [Lecture-27:Nucleation rate and its dependence on T (temp. of interest), ΔT, ΔG v and ΔG* and, introduction to growth kinetics.](https://invisiblenetwork.ai/learn/nptel/112104219/b639e0203038) (Video)
28. [Lecture-28:Growth kinetics cont.](https://invisiblenetwork.ai/learn/nptel/112104219/fd103ee42115) (Video)
29. [Lecture-29:Growth rate variation with undercooling and kinetics of overall phase transformation.](https://invisiblenetwork.ai/learn/nptel/112104219/63e546455977) (Video)
30. [Lecture-30:Implication of Avrami's equation with example on excel spreadsheet.](https://invisiblenetwork.ai/learn/nptel/112104219/c9e17e9ce8c7) (Video)
31. [Lecture-31:Experimental verification of Avrami Equation.](https://invisiblenetwork.ai/learn/nptel/112104219/5239661fa50c) (Video)
32. [Lecture - 32:Linear regression (least squares) method to find the value of n and k in Avrami equation.](https://invisiblenetwork.ai/learn/nptel/112104219/3d570588b86e) (Video)
33. [Lecture - 33:In this lecture, method to determine the goodness of fit has been explained. Procedure to estimate the values of n and k from experimental data have also been discussed.](https://invisiblenetwork.ai/learn/nptel/112104219/05f26b8fe3e3) (Video)
34. [Lecture-34:Stereology and quantitative metallography - I](https://invisiblenetwork.ai/learn/nptel/112104219/a464def3a6d4) (Video)
35. [Lecture-35:Stereology and quantitative metallography - II](https://invisiblenetwork.ai/learn/nptel/112104219/f37733a12804) (Video)
36. [Lecture-36:Grain size measurements methods.](https://invisiblenetwork.ai/learn/nptel/112104219/969ee54770cb) (Video)
37. [Lecture-37:Statistical tools for analysis and reporting of obtained data with examples.](https://invisiblenetwork.ai/learn/nptel/112104219/1423f33dbba9) (Video)
38. [Lecture-38:Evolution of TTT and CCT diagram from f vs. t plots.](https://invisiblenetwork.ai/learn/nptel/112104219/ce2fed8417d7) (Video)
39. [Lecture-39:TTT, CCT continue and hardenability of steel](https://invisiblenetwork.ai/learn/nptel/112104219/ac90316d865a) (Video)
40. [Lecture-40:Importance of heat treatment practices in real life (with examples).](https://invisiblenetwork.ai/learn/nptel/112104219/65aba5d51ae5) (Video)