Experimental investigation of phase equilibria in the Ni-Ta-Si refractory alloy system

Cuiping Wang; Liangfeng Huang; Mujin Yang; Xiang Huang; Jinbin Zhang; Shaobin Pan; Shuiyuan Yang; Xingjun Liu

doi:10.1016/j.jallcom.2021.161467

Experimental investigation of phase equilibria in the Ni-Ta-Si refractory alloy system

Cuiping Wang^*
, Liangfeng Huang
, Mujin Yang^*
, Xiang Huang
, Jinbin Zhang
, Shaobin Pan
, Shuiyuan Yang
, Xingjun Liu

^*Corresponding author for this work

Xiamen University
Harbin Institute of Technology
Harbin Institute of Technology Shenzhen

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

6 Scopus citations

Abstract

Three isothermal sections of the Ni-Ta-Si ternary system at 1300, 1100 and 900 °C were constructed in the whole composition range and analysed using electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. In addition to the known ternary G, E, H and C14 phases, a new compound with the composition of Ni_23–25Ta_39–40Si_35–38 was detected for the first time, herein designated as the F phase. Furthermore, the continuous (Ni, Si)Ta₂ phase was found to be stable and the composition range of the ternary C14 Laves phase was revised to be Ni_39–54Ta_26–33Si_13–27. The newly determined phase equilibria in the Ni-Ta-Si ternary system can be useful in guiding alloying strategies or composition design of Ni-based superalloys.

Original language	English
Article number	161467
Journal	Journal of Alloys and Compounds
Volume	888
DOIs	https://doi.org/10.1016/j.jallcom.2021.161467
State	Published - 25 Dec 2021
Externally published	Yes

Keywords

Microstructure
Ni-Ta-Si ternary system
Phase diagrams

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10.1016/j.jallcom.2021.161467

Cite this

@article{00f35d6b24854edf895b482215267963,

title = "Experimental investigation of phase equilibria in the Ni-Ta-Si refractory alloy system",

abstract = "Three isothermal sections of the Ni-Ta-Si ternary system at 1300, 1100 and 900 °C were constructed in the whole composition range and analysed using electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. In addition to the known ternary G, E, H and C14 phases, a new compound with the composition of Ni23–25Ta39–40Si35–38 was detected for the first time, herein designated as the F phase. Furthermore, the continuous (Ni, Si)Ta2 phase was found to be stable and the composition range of the ternary C14 Laves phase was revised to be Ni39–54Ta26–33Si13–27. The newly determined phase equilibria in the Ni-Ta-Si ternary system can be useful in guiding alloying strategies or composition design of Ni-based superalloys.",

keywords = "Microstructure, Ni-Ta-Si ternary system, Phase diagrams",

author = "Cuiping Wang and Liangfeng Huang and Mujin Yang and Xiang Huang and Jinbin Zhang and Shaobin Pan and Shuiyuan Yang and Xingjun Liu",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = dec,

day = "25",

doi = "10.1016/j.jallcom.2021.161467",

language = "英语",

volume = "888",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Experimental investigation of phase equilibria in the Ni-Ta-Si refractory alloy system

AU - Wang, Cuiping

AU - Huang, Liangfeng

AU - Yang, Mujin

AU - Huang, Xiang

AU - Zhang, Jinbin

AU - Pan, Shaobin

AU - Yang, Shuiyuan

AU - Liu, Xingjun

PY - 2021/12/25

Y1 - 2021/12/25

N2 - Three isothermal sections of the Ni-Ta-Si ternary system at 1300, 1100 and 900 °C were constructed in the whole composition range and analysed using electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. In addition to the known ternary G, E, H and C14 phases, a new compound with the composition of Ni23–25Ta39–40Si35–38 was detected for the first time, herein designated as the F phase. Furthermore, the continuous (Ni, Si)Ta2 phase was found to be stable and the composition range of the ternary C14 Laves phase was revised to be Ni39–54Ta26–33Si13–27. The newly determined phase equilibria in the Ni-Ta-Si ternary system can be useful in guiding alloying strategies or composition design of Ni-based superalloys.

AB - Three isothermal sections of the Ni-Ta-Si ternary system at 1300, 1100 and 900 °C were constructed in the whole composition range and analysed using electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. In addition to the known ternary G, E, H and C14 phases, a new compound with the composition of Ni23–25Ta39–40Si35–38 was detected for the first time, herein designated as the F phase. Furthermore, the continuous (Ni, Si)Ta2 phase was found to be stable and the composition range of the ternary C14 Laves phase was revised to be Ni39–54Ta26–33Si13–27. The newly determined phase equilibria in the Ni-Ta-Si ternary system can be useful in guiding alloying strategies or composition design of Ni-based superalloys.

KW - Microstructure

KW - Ni-Ta-Si ternary system

KW - Phase diagrams

UR - https://www.scopus.com/pages/publications/85112741080

U2 - 10.1016/j.jallcom.2021.161467

DO - 10.1016/j.jallcom.2021.161467

M3 - 文章

AN - SCOPUS:85112741080

SN - 0925-8388

VL - 888

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 161467

ER -

Experimental investigation of phase equilibria in the Ni-Ta-Si refractory alloy system

Abstract

Keywords

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