Welding Metallurgy

By Prof. Pradeep Kumar Jha | IIT Roorkee

Learners enrolled: 1759

The course focuses on understanding the metallurgy and solidification of weldments The course will make the students aware with the metallurgical aspects of welding. For getting a sound weld, the students are required to be aware of the science behind the welding phenomena, especially in the domain of weld metal solidification, heat transfer, heat treatment processes, strengthening mechanisms etc. The course will be useful for engineering graduates as well as professionals working in the area of welding.

PREREQUISITES: Introduction to courses such as Welding processes, Materials science etc.

INDUSTRY SUPPORT: Manufacturing Industries like SAIL, BHEL etc

Summary

Course Status :	Completed
Course Type :	Core
Language for course content :	English
Duration :	12 weeks
Category :	Metallurgy and Material science & Mining Engineering Mechanical Engineering Materials Joining
Credit Points :	3
Level :	Undergraduate/Postgraduate
Start Date :	23 Jan 2023
End Date :	14 Apr 2023
Enrollment Ends :	06 Feb 2023
Exam Registration Ends :	17 Mar 2023
Exam Date :	30 Apr 2023 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Introduction to welding metallurgy, phase diagrams

Week 2: Phase transformation, TTT and CCT diagrams

Week 3: Metal strengthening approaches

Week 4: Heat treatment processes for weldments

Week 5: Analysis of heat flow and temperature distribution in welding

Week 6: Concept of solidification in welding, constitutional supercooling

Week 7: Introduction to heat affected zones, Properties of HAZ

Week 8: Residual stresses in welding, Preheat and postweld heat treatment

Week 9: Types of welding distortion and its control

Week 10: Cracks in welds

Week 11: Weldability issues in materials

Week 12: Welding defects, Design considerations in welding

Books and references

1. SIDNEY H. AVNER, "INTRODUCTION TO PHYSICAL METALLURGY", McGRAW-HILL
2. SINDO KOU, "WELDING METALLURGY", A JOHN WILEY & SONS
3. J. F. LANCASTER, "METALLURGY OF WELDING", ABINGTON PUBLISHING

Instructor bio

Prof. Pradeep Kumar Jha

IIT Roorkee

Dr Pradeep K. Jha is presently working as Associate Professor in the Department of Mechanical & Industrial Engineering at IIT Roorkee. He has been teaching the courses related to manufacturing technology and theory of production processes to undergraduate and postgraduate students for more than 12 years. He is actively involved in research work related to production processes, tundish steelmaking process, mold solidification in continuous casting etc.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 30 April 2023 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Roorkee.It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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