Competitive grain growth mechanism in three dimensions during directional solidification of a nickel-based superalloy

Chubin Yang; Lin Liu; Xinbao Zhao; Ning Wang; Jun Zhang; Hengzhi Fu

doi:10.1016/j.jallcom.2013.07.006

Competitive grain growth mechanism in three dimensions during directional solidification of a nickel-based superalloy

Chubin Yang, Lin Liu, Xinbao Zhao, Ning Wang, Jun Zhang, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

29 Scopus citations

Abstract

Stray grains with random orientations were observed at the diverging 〈001〉 corner of the mold wall in the directionally solidified single crystal superalloy AM3. An experimental study, together with the simulation of the ProCAST software, was conducted to investigate the mechanism of competitive growth during the directional solidification with bi-crystal. Based on the results of the experiments and simulations, it was proposed that the factor contributing to the competitive growth was the rotation angle of the unfavorably oriented grain.

Original language	English
Pages (from-to)	577-584
Number of pages	8
Journal	Journal of Alloys and Compounds
Volume	578
DOIs	https://doi.org/10.1016/j.jallcom.2013.07.006
State	Published - 2013

Keywords

Competitive growth
Crystal orientation
High-temperature alloys
Microstructure

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10.1016/j.jallcom.2013.07.006

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title = "Competitive grain growth mechanism in three dimensions during directional solidification of a nickel-based superalloy",

abstract = "Stray grains with random orientations were observed at the diverging 〈001〉 corner of the mold wall in the directionally solidified single crystal superalloy AM3. An experimental study, together with the simulation of the ProCAST software, was conducted to investigate the mechanism of competitive growth during the directional solidification with bi-crystal. Based on the results of the experiments and simulations, it was proposed that the factor contributing to the competitive growth was the rotation angle of the unfavorably oriented grain.",

keywords = "Competitive growth, Crystal orientation, High-temperature alloys, Microstructure",

author = "Chubin Yang and Lin Liu and Xinbao Zhao and Ning Wang and Jun Zhang and Hengzhi Fu",

year = "2013",

doi = "10.1016/j.jallcom.2013.07.006",

language = "英语",

volume = "578",

pages = "577--584",

journal = "Journal of Alloys and Compounds",

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T1 - Competitive grain growth mechanism in three dimensions during directional solidification of a nickel-based superalloy

AU - Yang, Chubin

AU - Liu, Lin

AU - Zhao, Xinbao

AU - Wang, Ning

AU - Zhang, Jun

AU - Fu, Hengzhi

PY - 2013

Y1 - 2013

N2 - Stray grains with random orientations were observed at the diverging 〈001〉 corner of the mold wall in the directionally solidified single crystal superalloy AM3. An experimental study, together with the simulation of the ProCAST software, was conducted to investigate the mechanism of competitive growth during the directional solidification with bi-crystal. Based on the results of the experiments and simulations, it was proposed that the factor contributing to the competitive growth was the rotation angle of the unfavorably oriented grain.

AB - Stray grains with random orientations were observed at the diverging 〈001〉 corner of the mold wall in the directionally solidified single crystal superalloy AM3. An experimental study, together with the simulation of the ProCAST software, was conducted to investigate the mechanism of competitive growth during the directional solidification with bi-crystal. Based on the results of the experiments and simulations, it was proposed that the factor contributing to the competitive growth was the rotation angle of the unfavorably oriented grain.

KW - Competitive growth

KW - Crystal orientation

KW - High-temperature alloys

KW - Microstructure

UR - http://www.scopus.com/inward/record.url?scp=84884382054&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2013.07.006

DO - 10.1016/j.jallcom.2013.07.006

M3 - 文章

AN - SCOPUS:84884382054

SN - 0925-8388

VL - 578

SP - 577

EP - 584

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Competitive grain growth mechanism in three dimensions during directional solidification of a nickel-based superalloy

Abstract

Keywords

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