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Course11210625355 lectures

Steel Quality: Role of Secondary Refining & Continuous Casting

Prof. Santanu Kr. Ray · IIT Madras

Start with lecture 1 At NPTEL

Lectures

Week 1

  1. Concept of Steel Quality Video
  2. Typical Examples of Surface Defects Video
  3. Origin of Common Quality Problems Video

Week 2

  1. Present Scenario on Quality Demands Video
  2. Control of Residuals and Impact on Quality Video
  3. Non-Metallic Inclusions Video
  4. Evaluation of Residuals and Inclusions Video
  5. Cleanliness Requirements for Different applications Video

Week 3

  1. Limitation of Primary Steelmaking & Importance of secondary Refining Video
  2. Deoxidation Video
  3. Prevention of Slag carryover Video
  4. Desulphurisation Video
  5. Degassing Video
  6. Secondary Refining Processes Video

Week 4

  1. Injection of Calcium Video
  2. Decarburisation Video
  3. Cleanliness Measures in Ladle and Tundish Video
  4. Cleanliness Measures in Mould Video

Week 5

  1. Different Routes and Temperature Control Video
  2. Nature and Distribution of Entrapments in Casting Video
  3. Sources of Exogenous Entrapments Video
  4. Effect of Vertical vis-a-vis Curved Mould Video

Week 6

  1. Quality of Cast Product Video
  2. Role of Concast Process, Caster Design and Steel Grade Video
  3. Primary Cooling in Caster Mould Video
  4. Heat Transfer in Mould Video
  5. Cast Structure and Dendrite Size Video

Week 7

  1. Role of Mould Oscillation Video
  2. Role of Chemistry : Part I Video
  3. Role of Chemistry : Part II Video
  4. Role of Segregation : Part I Video
  5. Role of Segregation : Part II Video

Week 8

  1. Deleterious Effect of Phosphorus Video
  2. Strength of Solidifying Strand Video
  3. Brittle Zone Near Solidus Video
  4. Strength and Toughness of Solid Shell Video
  5. Role of Chemistry on Solidification Behaviour Video

Week 9

  1. Sticking vis-a-vis Depression Behaviour Video
  2. Role of Chemistry on Bulging or Depression Tendency : Part I Video
  3. Role of Chemistry on Bulging or Depression Tendency : Part II Video
  4. Effect of Cast Grain Size Video
  5. Brittle Temperature Regions Video

Week 10

  1. Role of Secondary Cooling - Part 1 Video
  2. Role of Secondary Cooling - Part 2 Video
  3. Typical Cracks and Defects : Part I Video
  4. Typical Cracks and Defects : Part II Video

Week 11

  1. Remedial Measures to Control Defects : Part I Video
  2. Remedial Measures to Control Defects : Part II Video
  3. Remedial Measures to Control Defects : Part III Video
  4. Grade - Specific Casting Parameters : Part I Video
  5. Grade - Specific Casting Parameters : Part II Video

Week 12

  1. Identification of Genesis of Quality Problems Through Metallographic Investigation : Part I Video
  2. Identification of Genesis of Quality Problems Through Metallographic Investigation : Part II Video
  3. Identification of Genesis of Quality Problems Through Metallographic Investigation : Part III Video
  4. Some Examples of Quality Problems Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Madras
Department
Mechanical Engineering
Teacher
Prof. Santanu Kr. Ray
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
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