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

doi:10.1007/s11663-998-0023-0

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

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

41 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 language	English (US)
Pages (from-to)	205-210
Number of pages	6
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	29
Issue number	1
DOIs	https://doi.org/10.1007/s11663-998-0023-0
State	Published - 1998

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Microsegregation behavior during solidification and homogenization of AerMet100 steel",

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.",

author = "Lippard, {H. E.} and Campbell, {C. E.} and T. Bj{\"o}rklind and U. Borggren and P. Kellgren and Dravid, {V. P.} and Olson, {G. B.}",

note = "Funding Information: This research was initiated as an international student collaboration between materials design classes at North-western University and the Royal Institute of Technology, Stockholm. DICTRA calculations at Stockholm were supervised by Bo Jansson and Bo Sundman with assistance from Mikael Lindholm, Lars H{\"o}glund, and Mikael Schalin. Research on AERMET100 steel at Northwestern University is supported by ARO under Grant No. DAAH04-93-G-0471/P01 and NSF Graduate Student Fellowship support given to HEL and CEC.",

year = "1998",

doi = "10.1007/s11663-998-0023-0",

language = "English (US)",

volume = "29",

pages = "205--210",

journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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T1 - Microsegregation behavior during solidification and homogenization of AerMet100 steel

AU - Lippard, H. E.

AU - Campbell, C. E.

AU - Björklind, T.

AU - Borggren, U.

AU - Kellgren, P.

AU - Dravid, V. P.

AU - Olson, G. B.

N1 - Funding Information: This research was initiated as an international student collaboration between materials design classes at North-western University and the Royal Institute of Technology, Stockholm. DICTRA calculations at Stockholm were supervised by Bo Jansson and Bo Sundman with assistance from Mikael Lindholm, Lars Höglund, and Mikael Schalin. Research on AERMET100 steel at Northwestern University is supported by ARO under Grant No. DAAH04-93-G-0471/P01 and NSF Graduate Student Fellowship support given to HEL and CEC.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

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SN - 1073-5615

IS - 1

ER -

Microsegregation behavior during solidification and homogenization of AerMet100 steel

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