Examination of Austenite Solidification and Spheroidal Graphite Growth in Ni-Fe-C alloys

Jingjing Qing; Von L. Richards; David C. Van Aken

doi:10.1007/978-3-319-48117-3_33

Examination of Austenite Solidification and Spheroidal Graphite Growth in Ni-Fe-C alloys

Jingjing Qing, Von L. Richards, David C. Van Aken

Manufacturing Engineering

Missouri University of Science and Technology

Research output: Contribution to book or proceeding › Chapter

Abstract

The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions. Electron backscatter diffraction (EBSD) and orientation image mapping (OIM) analyses were performed to investigate the crystallographic orientation and the grain boundary distribution of the austenite grains surrounding individual spheroidal graphite particles. The austenite engulfment process around the spheroidal graphite was revealed by EBSD/OIM analyses. Examination of the graphite nodules extracted by deep etching experiments revealed three stages of growth for the spheroidal graphite particles.

Original language	American English
Title of host publication	Advances in the Science and Engineering of Casting Solidification
DOIs	https://doi.org/10.1007/978-3-319-48117-3_33
State	Published - 2015

Disciplines

Engineering
Manufacturing

Keywords

Austenite solidification
Examination
Ni-Fe-C alloys
Spheroidal graphite growth

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title = "Examination of Austenite Solidification and Spheroidal Graphite Growth in Ni-Fe-C alloys",

abstract = " The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions. Electron backscatter diffraction (EBSD) and orientation image mapping (OIM) analyses were performed to investigate the crystallographic orientation and the grain boundary distribution of the austenite grains surrounding individual spheroidal graphite particles. The austenite engulfment process around the spheroidal graphite was revealed by EBSD/OIM analyses. Examination of the graphite nodules extracted by deep etching experiments revealed three stages of growth for the spheroidal graphite particles.",

keywords = "Austenite solidification, Examination, Ni-Fe-C alloys, Spheroidal graphite growth",

author = "Jingjing Qing and Richards, {Von L.} and {Van Aken}, {David C.}",

note = "The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions.",

year = "2015",

doi = "10.1007/978-3-319-48117-3_33",

language = "American English",

booktitle = "Advances in the Science and Engineering of Casting Solidification",

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TY - CHAP

T1 - Examination of Austenite Solidification and Spheroidal Graphite Growth in Ni-Fe-C alloys

AU - Qing, Jingjing

AU - Richards, Von L.

AU - Van Aken, David C.

N1 - The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions.

PY - 2015

Y1 - 2015

N2 - The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions. Electron backscatter diffraction (EBSD) and orientation image mapping (OIM) analyses were performed to investigate the crystallographic orientation and the grain boundary distribution of the austenite grains surrounding individual spheroidal graphite particles. The austenite engulfment process around the spheroidal graphite was revealed by EBSD/OIM analyses. Examination of the graphite nodules extracted by deep etching experiments revealed three stages of growth for the spheroidal graphite particles.

AB - The austenite phase and the spheroidal graphite in a Ni-Fe-C alloy at various solidification stages were captured by quenching experiments using spherical ceramic shell molds with inserted thermocouples. Multiple graphite nodules /spheroidal graphite particles inside an eutectic cell were observed using optical microscopy. Individual eutectic cells were differentiated by an intermetallic phase occurring within the interdendritic regions. Electron backscatter diffraction (EBSD) and orientation image mapping (OIM) analyses were performed to investigate the crystallographic orientation and the grain boundary distribution of the austenite grains surrounding individual spheroidal graphite particles. The austenite engulfment process around the spheroidal graphite was revealed by EBSD/OIM analyses. Examination of the graphite nodules extracted by deep etching experiments revealed three stages of growth for the spheroidal graphite particles.

KW - Austenite solidification

KW - Examination

KW - Ni-Fe-C alloys

KW - Spheroidal graphite growth

UR - https://doi.org/10.1007/978-3-319-48117-3_33

U2 - 10.1007/978-3-319-48117-3_33

DO - 10.1007/978-3-319-48117-3_33

M3 - Chapter

BT - Advances in the Science and Engineering of Casting Solidification

ER -

Examination of Austenite Solidification and Spheroidal Graphite Growth in Ni-Fe-C alloys

Abstract

Disciplines

Keywords

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