NOC:Steel Quality: Role of Secondary Refining and Continuous Casting

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