# Welding of Advanced High Strength Steels for Automotive Applications

- Institution: IIT Madras
- Department: Metallurgy and Material Science
- Teacher: Prof. Murugaiyan Amirthalingam
- Level: Graduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/113106082)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/113106082)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The use of advanced high strength steels (AHSS) is increasingly preferred in automotive applications due to improved crash energy management and enhanced strength-ductility combinations, resulting in greener and safer vehicles. The weldability of AHSS is generally poorer than conventional steels due to the high alloying contents required to obtain multi-phase microstructure. This course is aimed to discuss the (i) role of alloying elements in stabilizing multi-phase microstructures of AHSS, (ii) effect of weld thermal cycles on the evolution of microstructures and (iii) weldability of AHSS.

INTENDED AUDIENCE : Final year bachelors and masters students in Metallurgy, Mechanical, Automobile and Production Engineering. Industrial personnel working in automotive and steel making industries.

PREREQUISITES : Final year B.E/B.Tech students or Graduates of Metallurgical/Mechanical/Automobile/Production Engineering,Basic knowledge of steel physical metallurgy and welding processes.

INDUSTRY SUPPORT : All automotive manufacturers and their OEMs and Steel plants.

## Lectures

1. [Introduction to the course, Introduction to physical metallurgy of steels](https://invisiblenetwork.ai/learn/nptel/113106082/c8cf8a1aa725) (Video)
2. [Martensitic transformation, Introduction to modern automotive steels](https://invisiblenetwork.ai/learn/nptel/113106082/d177a405c331) (Video)
3. [Introduction to modern automotive steels](https://invisiblenetwork.ai/learn/nptel/113106082/c7b10aac4a9a) (Video)
4. [Introduction to advanced high strength steels](https://invisiblenetwork.ai/learn/nptel/113106082/12dd6ae2112f) (Video)
5. [Introduction to Dual Phase Steel and TRIP Steel Heat Treatments](https://invisiblenetwork.ai/learn/nptel/113106082/3df8800f7862) (Video)
6. [Thermal and Mechanical Processing of TRIP and Hot Forming Steels](https://invisiblenetwork.ai/learn/nptel/113106082/bdd966795ccf) (YouTube)
7. [Introduction to Welding Processes in Automotive Industries](https://invisiblenetwork.ai/learn/nptel/113106082/35db87f5a469) (YouTube)
8. [Principles of Resistance Spot Welding (RSW)](https://invisiblenetwork.ai/learn/nptel/113106082/1c1a9956d3e7) (YouTube)
9. [Process Characteristics of Resistance Spot Welding - Part - I](https://invisiblenetwork.ai/learn/nptel/113106082/ba2dc71fe3dd) (YouTube)
10. [Process Characteristics of Resistance Spot Welding - Part - II](https://invisiblenetwork.ai/learn/nptel/113106082/56a804616a9d) (YouTube)
11. [Introduction to Laser Beam Welding - Part - I](https://invisiblenetwork.ai/learn/nptel/113106082/78c7d96d493e) (YouTube)
12. [Introduction to Laser Beam Welding - Part - II](https://invisiblenetwork.ai/learn/nptel/113106082/bcd9438fb14e) (YouTube)
13. [Principles of Gas Metal Arc Welding - Part - I](https://invisiblenetwork.ai/learn/nptel/113106082/529a12cf8a57) (YouTube)
14. [Principles of Gas Metal Arc Welding - Part - II](https://invisiblenetwork.ai/learn/nptel/113106082/fd1c358777f7) (YouTube)
15. [Welding Metallurgy of Advanced High Strength Steels - Part - I](https://invisiblenetwork.ai/learn/nptel/113106082/74978c8839d7) (YouTube)
16. [Microstructural Evolution During Welding of Advanced High Strength Steels](https://invisiblenetwork.ai/learn/nptel/113106082/df948aff9a37) (YouTube)
17. [Elemental Behaviour During Welding of Advanced High Strength Steels](https://invisiblenetwork.ai/learn/nptel/113106082/5a1dad01429b) (YouTube)
18. [Quantification of Microstructural Constituents in Automotive Steel Welds Part - I](https://invisiblenetwork.ai/learn/nptel/113106082/0543d858027b) (YouTube)
19. [Quantification of Microstructural Constituents in Automotive Steel Welds Part - II and Mechanical Properties](https://invisiblenetwork.ai/learn/nptel/113106082/9263ff1d6ca8) (YouTube)
20. [Methodologies to Improve the Weldability of Advanced High Strength Steels](https://invisiblenetwork.ai/learn/nptel/113106082/3f6dfbc1b628) (YouTube)