NOC: Steel Quality : Role of Secondary Refining and Continuous Casting (USB)

Media Storage Type : 32 GB USB Stick

NPTEL Subject Matter Expert : Prof. Santanu Kr. Ray

NPTEL Co-ordinating Institute : IIT Madras

NPTEL Lecture Count : 55

NPTEL Course Size : 4.9 GB

NPTEL PDF Text Transcription : Available and Included

NPTEL Subtitle Transcription : Available and Included (SRT)

Lecture Titles:

Lecture 1 - Concept of Steel Quality
Lecture 2 - Typical Examples of Surface Defects
Lecture 3 - Origin of Common Quality Problems
Lecture 4 - Present Scenario on Quality Demands
Lecture 5 - Control of Residuals and Impact on Quality
Lecture 6 - Non-Metallic Inclusions
Lecture 7 - Evaluation of Residuals and Inclusions
Lecture 8 - Cleanliness Requirements for Different applications
Lecture 9 - Limitation of Primary Steelmaking and Importance of secondary Refining
Lecture 10 - Deoxidation
Lecture 11 - Prevention of Slag carryover
Lecture 12 - Desulphurisation
Lecture 13 - Degassing
Lecture 14 - Secondary Refining Processes
Lecture 15 - Injection of Calcium
Lecture 16 - Decarburisation
Lecture 17 - Cleanliness Measures in Ladle and Tundish
Lecture 18 - Cleanliness Measures in Mould
Lecture 19 - Different Routes and Temperature Control
Lecture 20 - Nature and Distribution of Entrapments in Casting
Lecture 21 - Sources of Exogenous Entrapments
Lecture 22 - Effect of Vertical vis-a-vis Curved Mould
Lecture 23 - Quality of Cast Product
Lecture 24 - Role of Concast Process, Caster Design and Steel Grade
Lecture 25 - Primary Cooling in Caster Mould
Lecture 26 - Heat Transfer in Mould
Lecture 27 - Cast Structure and Dendrite Size
Lecture 28 - Role of Mould Oscillation
Lecture 29 - Role of Chemistry - Part I
Lecture 30 - Role of Chemistry - Part II
Lecture 31 - Role of Segregation - Part I
Lecture 32 - Role of Segregation - Part II
Lecture 33 - Deleterious Effect of Phosphorus
Lecture 34 - Strength of Solidifying Strand
Lecture 35 - Brittle Zone Near Solidus
Lecture 36 - Strength and Toughness of Solid Shell
Lecture 37 - Role of Chemistry on Solidification Behaviour
Lecture 38 - Sticking vis-a-vis Depression Behaviour
Lecture 39 - Role of Chemistry on Bulging or Depression Tendency - Part I
Lecture 40 - Role of Chemistry on Bulging or Depression Tendency - Part II
Lecture 41 - Effect of Cast Grain Size
Lecture 42 - Brittle Temperature Regions
Lecture 43 - Role of Secondary Cooling - Part 1
Lecture 44 - Role of Secondary Cooling - Part 2
Lecture 45 - Typical Cracks and Defects - Part I
Lecture 46 - Typical Cracks and Defects - Part II
Lecture 47 - Remedial Measures to Control Defects - Part I
Lecture 48 - Remedial Measures to Control Defects - Part II
Lecture 49 - Remedial Measures to Control Defects - Part III
Lecture 50 - Grade - Specific Casting Parameters - Part I
Lecture 51 - Grade - Specific Casting Parameters - Part II
Lecture 52 - Identification of Genesis of Quality Problems Through Metallographic Investigation - Part I
Lecture 53 - Identification of Genesis of Quality Problems Through Metallographic Investigation - Part II
Lecture 54 - Identification of Genesis of Quality Problems Through Metallographic Investigation - Part III
Lecture 55 - Some Examples of Quality Problems