Microsegregation behavior during solidification and homogenization of AerMet100 steel

H. E. Lippard*, C. E. Campbell, T. Björklind, U. Borggren, P. Kellgren, V. P. Dravid, G. B. Olson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Cast AerMet100 exhibits mechanical properties comparable to the wrought properties of competing ultrahigh-strength steels; however, the segregation behavior had not been quantified under casting conditions. A microsegregation profile of the as-cast ingot was simulated and homogenization treatments were predicted using Thermo-Calc and DICTRA software. Experimental composition analysis confirmed the simulated microsegregation profile, and the homogenization process occurred at a slightly faster rate than predicted. The convergence of theory and experiment demonstrates the feasibility of designing cast alloy compositions assisted by computer simulation to minimize segregation without casting a large experimental matrix of test ingots.

Original languageEnglish (US)
Pages (from-to)205-210
Number of pages6
JournalMetallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume29
Issue number1
DOIs
StatePublished - 1998

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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