Incipient Melting and Solution Heat Treatment of a Boron-Bearing Third Generation Single Crystal Nickel Base Superalloy

Yanbin Zhang; Lin Liu; Taiwen Huang; Jun Zhang; Haifeng Wang; Ziqi Jie; Hengzhi Fu

Incipient Melting and Solution Heat Treatment of a Boron-Bearing Third Generation Single Crystal Nickel Base Superalloy

Yanbin Zhang, Lin Liu, Taiwen Huang, Jun Zhang, Haifeng Wang, Ziqi Jie, Hengzhi Fu

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

9 引用（Scopus）

摘要

The incipient melting process of a B bearing third generation single crystal superalloy was investigated by Thermol-Calc software. The simulation data was obtained by EPMA. The results show that the incipient melting phase is M₂B and the incipient melting temperature is 1265℃, which is significantly lower than the melting temperature of eutectic (1352℃) obtained by DSC. The dissolution of γ/γ' eutectics was studied by SEM. It is indicated that more time and higher temperature are necessary to dissolve the coarse γ' in eutectics than mosaic-like eutectics and fan-like eutectics. The eutectics shape of the incipient melting region is round. Homogenous nucleation could be found in incipient melting region due to the fast cooling rate of air cooling. The resolidification structure owns mosaic-like eutectics and fan-like eutectics which are dissolved in the early stage of solution heat treatment.

源语言	英语
页（从-至）	3105-3110
页数	6
期刊	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
卷	46
期	10
出版状态	已出版 - 1 10月 2017

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title = "Incipient Melting and Solution Heat Treatment of a Boron-Bearing Third Generation Single Crystal Nickel Base Superalloy",

abstract = "The incipient melting process of a B bearing third generation single crystal superalloy was investigated by Thermol-Calc software. The simulation data was obtained by EPMA. The results show that the incipient melting phase is M2B and the incipient melting temperature is 1265℃, which is significantly lower than the melting temperature of eutectic (1352℃) obtained by DSC. The dissolution of γ/γ' eutectics was studied by SEM. It is indicated that more time and higher temperature are necessary to dissolve the coarse γ' in eutectics than mosaic-like eutectics and fan-like eutectics. The eutectics shape of the incipient melting region is round. Homogenous nucleation could be found in incipient melting region due to the fast cooling rate of air cooling. The resolidification structure owns mosaic-like eutectics and fan-like eutectics which are dissolved in the early stage of solution heat treatment.",

keywords = "Eutectic, Incipient melting, Solution heat treatment, Superalloy",

author = "Yanbin Zhang and Lin Liu and Taiwen Huang and Jun Zhang and Haifeng Wang and Ziqi Jie and Hengzhi Fu",

year = "2017",

month = oct,

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TY - JOUR

T1 - Incipient Melting and Solution Heat Treatment of a Boron-Bearing Third Generation Single Crystal Nickel Base Superalloy

AU - Zhang, Yanbin

AU - Liu, Lin

AU - Huang, Taiwen

AU - Zhang, Jun

AU - Wang, Haifeng

AU - Jie, Ziqi

AU - Fu, Hengzhi

PY - 2017/10/1

Y1 - 2017/10/1

N2 - The incipient melting process of a B bearing third generation single crystal superalloy was investigated by Thermol-Calc software. The simulation data was obtained by EPMA. The results show that the incipient melting phase is M2B and the incipient melting temperature is 1265℃, which is significantly lower than the melting temperature of eutectic (1352℃) obtained by DSC. The dissolution of γ/γ' eutectics was studied by SEM. It is indicated that more time and higher temperature are necessary to dissolve the coarse γ' in eutectics than mosaic-like eutectics and fan-like eutectics. The eutectics shape of the incipient melting region is round. Homogenous nucleation could be found in incipient melting region due to the fast cooling rate of air cooling. The resolidification structure owns mosaic-like eutectics and fan-like eutectics which are dissolved in the early stage of solution heat treatment.

AB - The incipient melting process of a B bearing third generation single crystal superalloy was investigated by Thermol-Calc software. The simulation data was obtained by EPMA. The results show that the incipient melting phase is M2B and the incipient melting temperature is 1265℃, which is significantly lower than the melting temperature of eutectic (1352℃) obtained by DSC. The dissolution of γ/γ' eutectics was studied by SEM. It is indicated that more time and higher temperature are necessary to dissolve the coarse γ' in eutectics than mosaic-like eutectics and fan-like eutectics. The eutectics shape of the incipient melting region is round. Homogenous nucleation could be found in incipient melting region due to the fast cooling rate of air cooling. The resolidification structure owns mosaic-like eutectics and fan-like eutectics which are dissolved in the early stage of solution heat treatment.

KW - Eutectic

KW - Incipient melting

KW - Solution heat treatment

KW - Superalloy

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M3 - 文章

AN - SCOPUS:85049939683

SN - 1002-185X

VL - 46

SP - 3105

EP - 3110

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 10

ER -

Incipient Melting and Solution Heat Treatment of a Boron-Bearing Third Generation Single Crystal Nickel Base Superalloy

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