Peritectic reaction during directional solidification in a Ru-containing nickel-based single crystal superalloy

Kaili Cao; Wenchao Yang; Jiachen Zhang; Pengfei Qu; Chen Liu; Haijun Su; Jun Zhang; Lin Liu

doi:10.1016/j.jallcom.2021.159419

Peritectic reaction during directional solidification in a Ru-containing nickel-based single crystal superalloy

Kaili Cao, Wenchao Yang, Jiachen Zhang, Pengfei Qu, Chen Liu, Haijun Su, Jun Zhang, Lin Liu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

11 Scopus citations

Abstract

The peritectic reaction L + β-NiAl → γ′ during directional solidification in a Ru-containing nickel-based single crystal superalloy was investigated by the planar interface solidification and the phase transformation process was clarified in detail. The phase transformation mechanism of the peritectic reaction was further studied in the combination of the transmission electron microscope and the edge-to-edge matching model from the crystallographic point of view. The results indicated that the relaxation of some atoms on the matching planes (11̅0)_β and (11̅1)_γ′ maximized the atomic matching at the interface, increasing the possibility of peritectic γ′ phase nucleated on primary β-NiAl phase in the peritectic reaction.

Original language	English
Article number	159419
Journal	Journal of Alloys and Compounds
Volume	870
DOIs	https://doi.org/10.1016/j.jallcom.2021.159419
State	Published - 25 Jul 2021

Keywords

Crystallographic
Peritectic reaction
Phase transformation mechanism
Planar interface solidification
Superalloy

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10.1016/j.jallcom.2021.159419

Cite this

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title = "Peritectic reaction during directional solidification in a Ru-containing nickel-based single crystal superalloy",

abstract = "The peritectic reaction L + β-NiAl → γ′ during directional solidification in a Ru-containing nickel-based single crystal superalloy was investigated by the planar interface solidification and the phase transformation process was clarified in detail. The phase transformation mechanism of the peritectic reaction was further studied in the combination of the transmission electron microscope and the edge-to-edge matching model from the crystallographic point of view. The results indicated that the relaxation of some atoms on the matching planes (11̅0)β and (11̅1)γ′ maximized the atomic matching at the interface, increasing the possibility of peritectic γ′ phase nucleated on primary β-NiAl phase in the peritectic reaction.",

keywords = "Crystallographic, Peritectic reaction, Phase transformation mechanism, Planar interface solidification, Superalloy",

author = "Kaili Cao and Wenchao Yang and Jiachen Zhang and Pengfei Qu and Chen Liu and Haijun Su and Jun Zhang and Lin Liu",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = jul,

day = "25",

doi = "10.1016/j.jallcom.2021.159419",

language = "英语",

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TY - JOUR

T1 - Peritectic reaction during directional solidification in a Ru-containing nickel-based single crystal superalloy

AU - Cao, Kaili

AU - Yang, Wenchao

AU - Zhang, Jiachen

AU - Qu, Pengfei

AU - Liu, Chen

AU - Su, Haijun

AU - Zhang, Jun

AU - Liu, Lin

PY - 2021/7/25

Y1 - 2021/7/25

N2 - The peritectic reaction L + β-NiAl → γ′ during directional solidification in a Ru-containing nickel-based single crystal superalloy was investigated by the planar interface solidification and the phase transformation process was clarified in detail. The phase transformation mechanism of the peritectic reaction was further studied in the combination of the transmission electron microscope and the edge-to-edge matching model from the crystallographic point of view. The results indicated that the relaxation of some atoms on the matching planes (11̅0)β and (11̅1)γ′ maximized the atomic matching at the interface, increasing the possibility of peritectic γ′ phase nucleated on primary β-NiAl phase in the peritectic reaction.

AB - The peritectic reaction L + β-NiAl → γ′ during directional solidification in a Ru-containing nickel-based single crystal superalloy was investigated by the planar interface solidification and the phase transformation process was clarified in detail. The phase transformation mechanism of the peritectic reaction was further studied in the combination of the transmission electron microscope and the edge-to-edge matching model from the crystallographic point of view. The results indicated that the relaxation of some atoms on the matching planes (11̅0)β and (11̅1)γ′ maximized the atomic matching at the interface, increasing the possibility of peritectic γ′ phase nucleated on primary β-NiAl phase in the peritectic reaction.

KW - Crystallographic

KW - Peritectic reaction

KW - Phase transformation mechanism

KW - Planar interface solidification

KW - Superalloy

UR - http://www.scopus.com/inward/record.url?scp=85102645278&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2021.159419

DO - 10.1016/j.jallcom.2021.159419

M3 - 文章

AN - SCOPUS:85102645278

SN - 0925-8388

VL - 870

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 159419

ER -

Peritectic reaction during directional solidification in a Ru-containing nickel-based single crystal superalloy

Abstract

Keywords

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