Martensitic transformation of solute-depleted lamellar γ phase in the cellular structure of the Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C alloy

Jeong H. Kim; Jae H. Kim; Woong K. Choo

doi:10.1016/S1359-6462(99)00174-8

Martensitic transformation of solute-depleted lamellar γ phase in the cellular structure of the Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C alloy

Jeong H. Kim, Jae H. Kim, Woong K. Choo

Division of Energy Techonology

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

Abstract

From the broad X-ray diffraction lines, the defect contrast in transmission electron bright field image and the martensite start temperature measurements, the lamellar α phase in the cellular product of Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C has been cleared up to be a martensite phase transformed from the solute-depleted γ lamellar phase. Hence, the overall formation mechanism of the cellular product in the alloy was clarified to be: γ (supersaturated austenite after solution treatment); →γ+γ′ (matrix reaction on aging); →γ+γ′ (discontinuous coarsening reaction on aging); and →α+γ′ (martensitic transformation during quenching).

Original language	English
Pages (from-to)	373-377
Number of pages	5
Journal	Scripta Materialia
Volume	41
Issue number	4
DOIs	https://doi.org/10.1016/S1359-6462(99)00174-8
State	Published - Apr 1999

Bibliographical note

Funding Information:
This work was supported by grant No. 971-0803-029-2 from the Basic Research program of the KOSEF.

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@article{02460e3c68c94b39ab535f6adf64be17,

title = "Martensitic transformation of solute-depleted lamellar γ phase in the cellular structure of the Fe-37.3wt\%Ni-3.6wt\%Al-3.3wt\%Ti-0.2wt\%C alloy",

abstract = "From the broad X-ray diffraction lines, the defect contrast in transmission electron bright field image and the martensite start temperature measurements, the lamellar α phase in the cellular product of Fe-37.3wt\%Ni-3.6wt\%Al-3.3wt\%Ti-0.2wt\%C has been cleared up to be a martensite phase transformed from the solute-depleted γ lamellar phase. Hence, the overall formation mechanism of the cellular product in the alloy was clarified to be: γ (supersaturated austenite after solution treatment); →γ+γ′ (matrix reaction on aging); →γ+γ′ (discontinuous coarsening reaction on aging); and →α+γ′ (martensitic transformation during quenching).",

author = "Kim, \{Jeong H.\} and Kim, \{Jae H.\} and Choo, \{Woong K.\}",

note = "Funding Information: This work was supported by grant No. 971-0803-029-2 from the Basic Research program of the KOSEF.",

year = "1999",

month = apr,

doi = "10.1016/S1359-6462(99)00174-8",

language = "English",

volume = "41",

pages = "373--377",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Martensitic transformation of solute-depleted lamellar γ phase in the cellular structure of the Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C alloy

AU - Kim, Jeong H.

AU - Kim, Jae H.

AU - Choo, Woong K.

N1 - Funding Information: This work was supported by grant No. 971-0803-029-2 from the Basic Research program of the KOSEF.

PY - 1999/4

Y1 - 1999/4

N2 - From the broad X-ray diffraction lines, the defect contrast in transmission electron bright field image and the martensite start temperature measurements, the lamellar α phase in the cellular product of Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C has been cleared up to be a martensite phase transformed from the solute-depleted γ lamellar phase. Hence, the overall formation mechanism of the cellular product in the alloy was clarified to be: γ (supersaturated austenite after solution treatment); →γ+γ′ (matrix reaction on aging); →γ+γ′ (discontinuous coarsening reaction on aging); and →α+γ′ (martensitic transformation during quenching).

AB - From the broad X-ray diffraction lines, the defect contrast in transmission electron bright field image and the martensite start temperature measurements, the lamellar α phase in the cellular product of Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C has been cleared up to be a martensite phase transformed from the solute-depleted γ lamellar phase. Hence, the overall formation mechanism of the cellular product in the alloy was clarified to be: γ (supersaturated austenite after solution treatment); →γ+γ′ (matrix reaction on aging); →γ+γ′ (discontinuous coarsening reaction on aging); and →α+γ′ (martensitic transformation during quenching).

UR - https://www.scopus.com/pages/publications/0032649079

U2 - 10.1016/S1359-6462(99)00174-8

DO - 10.1016/S1359-6462(99)00174-8

M3 - Article

AN - SCOPUS:0032649079

SN - 1359-6462

VL - 41

SP - 373

EP - 377

JO - Scripta Materialia

JF - Scripta Materialia

IS - 4

ER -

Martensitic transformation of solute-depleted lamellar γ phase in the cellular structure of the Fe-37.3wt%Ni-3.6wt%Al-3.3wt%Ti-0.2wt%C alloy

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