Can anyone analyze microstructures? (Steel AISI D2)

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SUMMARY

The discussion centers on analyzing the microstructures of steel AISI D2 after an austempering process, specifically identifying the presence of carbides within a ferrite matrix. Participants suggest consulting the ASM Handbook of Metals, particularly the metallography volume, which has undergone revisions since 2004. The consensus indicates that the matrix is likely bainite, supporting the identification of the microstructure.

PREREQUISITES
  • Understanding of metallurgical processes, specifically austempering.
  • Familiarity with steel grades, particularly AISI D2.
  • Knowledge of microstructural analysis techniques.
  • Access to the ASM Handbook of Metals, especially volume 9 on metallography.
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  • Research the austempering process and its effects on steel microstructures.
  • Study the characteristics of bainitic microstructures in steels.
  • Explore the ASM Handbook of Metals for detailed metallographic analysis.
  • Learn about carbide formation in ferrite matrices and their implications in steel properties.
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Materials scientists, metallurgists, and engineering students involved in steel microstructure analysis and heat treatment processes.

Bruno R SIlva
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I am doing a work in Materials, and we were supposed to do an austemper (bainitic temper) in the steel AISI D2.
I got this microstructures, but i can't recognize what's in it.

Can someone help?
Captura de ecrã 2015-05-21, às 14.58.43.png
Captura de ecrã 2015-05-21, às 14.58.34.png
Captura de ecrã 2015-05-21, às 14.58.25.png
Captura de ecrã 2015-05-21, às 14.58.14.png
 
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have you tried looking through the asm handbook of metals (i think metallography volume has changed once or twice). 2004 is volume 9. at a glance i would say carbides in a ferrite matrix, but I am not sure about the matrix.
 
The matrix would be bainite.
 

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