Elevated temperature ablation mechanism and microstructural evolution of W-3Re-xHfC alloys in an oxy-acetylene torch environment

Yanchao Li; Wen Zhang; Xiaohui Lin; Benqi Jiao; Hui Wang; Hui Liu; Jianfeng Li

doi:10.1016/j.ijrmhm.2023.106186

Elevated temperature ablation mechanism and microstructural evolution of W-3Re-xHfC alloys in an oxy-acetylene torch environment

Yanchao Li, Wen Zhang, Xiaohui Lin, Benqi Jiao, Hui Wang, Hui Liu, Jianfeng Li

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

5 Scopus citations

Abstract

Nozzle materials always withstand ultra-high temperatures (above 2000 °C) in space propulsion and other fields, which results in complex physical-chemical phenomena under actual operating conditions. The ablation mechanism and microstructural evolution of W-3Re-xHfC alloys were investigated to simulate the actual service conditions. Results show an outstanding ablation resistance. The linear ablation rate of the W[sbnd]3Re matrix is 6.67 μm/s, the W-3Re-0.5HfC, W-3Re-5HfC and W-3Re-10HfC alloys are 2.93 μm/s, 2.23 μm/s and 2.26 μm/s, respectively. The linear ablation rates of W-3Re-0.5HfC, W-3Re-5HfC, and W-3Re-10HfC alloys decreased by 66%, 67%, and 67% compared with the W[sbnd]3Re matrix, respectively. Thermochemical oxidation of the W[sbnd]3Re matrix and HfC was the primary ablation mechanism of W-3Re-xHfC alloys. This work contributes to the design and improving the ablation resistance of W[sbnd]Re alloy applications in extreme environments.

Original language	English
Article number	106186
Journal	International Journal of Refractory Metals and Hard Materials
Volume	113
DOIs	https://doi.org/10.1016/j.ijrmhm.2023.106186
State	Published - Jun 2023
Externally published	Yes

Keywords

Ablation properties
Alloys
Mechanism
Microstructure
W-3Re-xHfC

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10.1016/j.ijrmhm.2023.106186

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@article{744fd487010340ebac87cd7dc7ddd60c,

title = "Elevated temperature ablation mechanism and microstructural evolution of W-3Re-xHfC alloys in an oxy-acetylene torch environment",

abstract = "Nozzle materials always withstand ultra-high temperatures (above 2000 °C) in space propulsion and other fields, which results in complex physical-chemical phenomena under actual operating conditions. The ablation mechanism and microstructural evolution of W-3Re-xHfC alloys were investigated to simulate the actual service conditions. Results show an outstanding ablation resistance. The linear ablation rate of the W[sbnd]3Re matrix is 6.67 μm/s, the W-3Re-0.5HfC, W-3Re-5HfC and W-3Re-10HfC alloys are 2.93 μm/s, 2.23 μm/s and 2.26 μm/s, respectively. The linear ablation rates of W-3Re-0.5HfC, W-3Re-5HfC, and W-3Re-10HfC alloys decreased by 66%, 67%, and 67% compared with the W[sbnd]3Re matrix, respectively. Thermochemical oxidation of the W[sbnd]3Re matrix and HfC was the primary ablation mechanism of W-3Re-xHfC alloys. This work contributes to the design and improving the ablation resistance of W[sbnd]Re alloy applications in extreme environments.",

keywords = "Ablation properties, Alloys, Mechanism, Microstructure, W-3Re-xHfC",

author = "Yanchao Li and Wen Zhang and Xiaohui Lin and Benqi Jiao and Hui Wang and Hui Liu and Jianfeng Li",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = jun,

doi = "10.1016/j.ijrmhm.2023.106186",

language = "英语",

volume = "113",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Elevated temperature ablation mechanism and microstructural evolution of W-3Re-xHfC alloys in an oxy-acetylene torch environment

AU - Li, Yanchao

AU - Zhang, Wen

AU - Lin, Xiaohui

AU - Jiao, Benqi

AU - Wang, Hui

AU - Liu, Hui

AU - Li, Jianfeng

PY - 2023/6

Y1 - 2023/6

N2 - Nozzle materials always withstand ultra-high temperatures (above 2000 °C) in space propulsion and other fields, which results in complex physical-chemical phenomena under actual operating conditions. The ablation mechanism and microstructural evolution of W-3Re-xHfC alloys were investigated to simulate the actual service conditions. Results show an outstanding ablation resistance. The linear ablation rate of the W[sbnd]3Re matrix is 6.67 μm/s, the W-3Re-0.5HfC, W-3Re-5HfC and W-3Re-10HfC alloys are 2.93 μm/s, 2.23 μm/s and 2.26 μm/s, respectively. The linear ablation rates of W-3Re-0.5HfC, W-3Re-5HfC, and W-3Re-10HfC alloys decreased by 66%, 67%, and 67% compared with the W[sbnd]3Re matrix, respectively. Thermochemical oxidation of the W[sbnd]3Re matrix and HfC was the primary ablation mechanism of W-3Re-xHfC alloys. This work contributes to the design and improving the ablation resistance of W[sbnd]Re alloy applications in extreme environments.

AB - Nozzle materials always withstand ultra-high temperatures (above 2000 °C) in space propulsion and other fields, which results in complex physical-chemical phenomena under actual operating conditions. The ablation mechanism and microstructural evolution of W-3Re-xHfC alloys were investigated to simulate the actual service conditions. Results show an outstanding ablation resistance. The linear ablation rate of the W[sbnd]3Re matrix is 6.67 μm/s, the W-3Re-0.5HfC, W-3Re-5HfC and W-3Re-10HfC alloys are 2.93 μm/s, 2.23 μm/s and 2.26 μm/s, respectively. The linear ablation rates of W-3Re-0.5HfC, W-3Re-5HfC, and W-3Re-10HfC alloys decreased by 66%, 67%, and 67% compared with the W[sbnd]3Re matrix, respectively. Thermochemical oxidation of the W[sbnd]3Re matrix and HfC was the primary ablation mechanism of W-3Re-xHfC alloys. This work contributes to the design and improving the ablation resistance of W[sbnd]Re alloy applications in extreme environments.

KW - Ablation properties

KW - Alloys

KW - Mechanism

KW - Microstructure

KW - W-3Re-xHfC

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U2 - 10.1016/j.ijrmhm.2023.106186

DO - 10.1016/j.ijrmhm.2023.106186

M3 - 文章

AN - SCOPUS:85149861201

SN - 0263-4368

VL - 113

JO - International Journal of Refractory Metals and Hard Materials

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M1 - 106186

ER -

Elevated temperature ablation mechanism and microstructural evolution of W-3Re-xHfC alloys in an oxy-acetylene torch environment

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