Physical Metallurgy of Direct Chill Casting of Aluminum Alloys / Dmitry G. Eskin

 

 

 

 

 

 

 

BRIEF CONTENTS

Direct Chill Casting: Development of the Technology

Solidification of Aluminum Alloys

  • Effect of Cooling Rate and Melt Temperature on Solidification of Aluminum Alloys
  • Microsegregation in Aluminum Alloys
  • Solidification Reactions and Phase Composition
    • Commercial Aluminum
    • Wrought Alloys with Manganese (3XXX Series)
    • Al–Mg–Si Wrought Alloys (6XXX Series)
    • Al–Mg–Si–Cu Wrought Alloys (6XXX and 2XXX Series)
    • Al–Mg–Mn Wrought Alloys (5XXX Series)
    • Al–Cu–Mn (Mg, Si, Ni) Wrought Alloys (2XXX Series)
    • Al–Mg–Zn–(Cu) Wrought Alloys (7XXX Series)
    • Wrought Alloys Containing Lithium
      • Al–Cu–Li Commercial Alloys
      • Al–Li–Mg Commercial Alloys
      • Al–Li–Cu–Mg Commercial Alloys
    • Effect of Alloy Composition on Structure Formation: Grain Refinement
      • Mechanisms of Grain Refinement
      • Al–Sc–Zr Phase Diagram
      • Al–Ti–B Phase Diagram
      • Al–Ti–C Phase Diagram
    • References

Solidification Patterns and Structure Formation during Direct Chill Casting

  • Shape and Dimensions of the Billet Sump
  • Solidification Rate and Cooling Rate during DC Casting
  • Effects of Process Parameters on the Formation of Grain Structure
  • Effect of Process Parameters on the Amount of Nonequilibrium Eutectics
  • Effect of Process Parameters and Alloy Composition on the Occurrence of Some Casting Defects
  • References

Macrosegregation

  • Mechanisms of Macrosegregation
    • Historic Overview
    • Permeability
    • Convection-Driven Macrosegregation
    • Shrinkage-Driven Macrosegregation
    • Floating Grains and Macrosegregation
    • Deformation-Driven Macrosegregation
  • Effects of Process Parameters on Macrosegregation during DC Casting
    • Effect of Casting Speed on Macrosegregation during DC Casting
    • Effect of Melt Temperature on Macrosegregation during DC Casting
    • Dimensions of the Billet: Scaling Rule of Macrosegregation
    • Effect of Forced Convection on Macrosegregation during DC Casting
  • Effect of Composition on Macrosegregation: Macrosegregation in Commercial Aluminum Alloys
  • References

Hot Tearing

  • Thermal Contraction during Solidification
  • Mechanical Properties of Semi-Solid Alloys
    • Testing Techniques
    • Strength Properties of Aluminum Alloys in the Semi-Solid State
    • Ductility of Aluminum Alloys in the Semi-Solid State
  • Mechanisms and Criteria for Hot Tearing
    • Historic Overview of Hot Tearing Research and Suggested Mechanisms
    • Hot Tearing Criteria
      • Stress-Based Criteria
      • Strain-Based Criteria
      • Strain Rate-Based Criteria
      • Criteria Based on Other Principles
    • Application of Hot Tearing Criteria to DC Casting of Aluminum Alloys
    • Quest for a New Hot Tearing Criterion
  • Effects of Process Parameters on Hot Tearing during DC Casting
    • Thermo-Mechanical Behavior of a DC-Cast Billet (Ingot)
    • Effects of Composition and Casting Speed on Hot Tearing during DC Casting
    • Effect of Melt Temperature on Hot Tearing during DC Casting
    • Structural Features Associated with Hot Tearing in DC Casting
  • References

PREVIEW