Aluminum Metallurgy 201

Learning Outcomes

  • Read unary and binary phase diagrams to predict the phases (structures) that form during solidification.
  • Describe how phase diagrams and cooling curves can be used to determine the sources of castability issues.
  • Describe how solidification impacts casting properties.
  • Describe the effects of grain refiners and modifiers on microstructures.
  • Describe how melt treatment, such as degassing, fluxes, and filtration, can impact casting properties.
  • Describe the types and applications of common melt quality and casting analysis techniques.
  • Explain how the heat treatment tempers affect microstructure and mechanical properties of cast aluminum alloys.

Course Introduction

This course provides participants with the scientific principles needed to understand the metallurgy of important aluminum-based casting alloys. Its primary purpose is to facilitate an understanding of the chemical and thermal fundamentals which control structures formed during aluminum solidification. Topics include phase diagrams, thermal analysis, segregation, dendritic solidification and heat treatment.

Benefits to Taking the Course

Participants will attain the knowledge and skills needed to interact with analysis laboratories and customers in an informed manner, modify process parameters and adjust casting properties to meet customers’ requirements, and better understand and solve production problems in the future.

Module 1: Introduction

Module 2: Cooling Curves and Phase Diagrams

  • Cooling Curves and Phase Diagrams
  • Elements of a Cast Microstructure

Module 3: Solidification Characteristics

  • Solidification and Feeding
  • Grain Structure and Solidification

Module 4: Grain Refinement and Modification

  • Grain Refinement
  • Silicon Modification
  • Best Practices

Module 5: Melt Quality and Casting Analysis

  • Relationship with Casting Quality and the Melt Process
  • Melt Quality Analysis Techniques
  • Mechanical Testing Methods
  • Casting Inspections

Module 6: Heat Treatment

  • Benefits of Heat Treatment
  • Processes and Tempers
  • Heat Treating Issues, Properties, and Applications of Common Alloy Systems

Module 7: Conclusion

 

What our students are saying......

"Great class – very informational!"
"Good depth and width, very practical."
"Group teaching activities were very effective and I appreciated the different perspectives from classmates."
"Thank you for the knowledge, I love it!"
"This was a good way to meet and hear about other processes."