Uniform nanosized oxide particles dispersion strengthened tungsten alloy fabricated involving hydrothermal method and hot isostatic pressing

Xiao, Fangnao; Miao, Qiang; Wei, Shizhong; Barrière, Thierry; Cheng, Gang; Zuo, Shiwei; Xu, Liujie

doi:10.1016/j.jallcom.2020.153894

Cited by 27 publications

(6 citation statements)

References 49 publications

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“…Specific surface area (SSA) was measured with a BET surface area analysis instrument (Autosorb-1, Quantachrome, USA). The average particle sizes of the doped tungsten powders were calculated based on the BET specific surface area by using the following equation [41]:…”

Section: Measurement and Analysismentioning

confidence: 99%

Research on the effect of liquid-liquid doping processes on the doped powders and microstructures of W–ZrO2(Y) alloys

Xiao

Barrière

Cheng

et al. 2021

Journal of Alloys and Compounds

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Highlights1. Three novel liquid-liquid doping technique for preparing precursors were proposed.2. Extremely homogeneous microspherical and flaky precursors were synthesized.3. Synthesis mechanism of three precursors were investigated in detail, respectively. 4. Reaction mechanisms for synthesizing cubic ZrO 2 in ternary liquid system were discussed.5. Novel method offers a general pathway in industrial production of high quality ODS-W powders.

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Section: Measurement and Analysismentioning

confidence: 99%

Research on the effect of liquid-liquid doping processes on the doped powders and microstructures of W–ZrO2(Y) alloys

Xiao

Barrière

Cheng

et al. 2021

Journal of Alloys and Compounds

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“…The microstructure and properties researches have be detailedly presented in latest study of F. N. Xiao and al. [71].…”

Section: Microstructure Of Alloysmentioning

confidence: 99%

Research on preparation process for the in situ nanosized Zr(Y)O2 particles dispersion-strengthened tungsten alloy through synthesizing doped hexagonal (NH4)0.33·WO3

Xiao

Barrière

Cheng³

et al. 2020

Journal of Alloys and Compounds

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“…The fabrication methods for WHAs mainly include traditional liquid-phase sintering (LPS) [ 6 , 7 , 8 ], microwave-assisted sintering (MAS) [ 9 , 10 , 11 , 12 , 13 ], oscillating pressure sintering (OPS) [ 14 ], selective laser melting (SLM) [ 15 ], hot isostatic pressing (HIP) [ 16 ], and spark plasma sintering (SPS) [ 17 , 18 , 19 , 20 , 21 ]. LPS requires a high temperature with a long dwelling time to achieve a high density.…”

Section: Introductionmentioning

confidence: 99%

Ultrafine-Grained Tungsten Heavy Alloy Prepared by High-Pressure Spark Plasma Sintering

Zhang

Zhu

Li³

et al. 2022

Materials

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Tungsten heavy alloy (WHA) is an ideal material employed for kinetic energy penetrators due to its high density and excellent mechanical properties. However, it is difficult to obtain ultrafine-grained tungsten alloy with excellent properties by traditional powder metallurgy method because of severe grain growth at a high sintering temperature with a long soaking time. In this study, the sintering behavior of tungsten alloys was studied at 800 to 1300 °C, and highly dense 93W-5.6Ni-1.4Fe (wt.%) WHA was successfully fabricated at a low temperature of 950 °C with a high pressure of 150 MPa by spark plasma sintering. The as-sintered tungsten alloy possesses a high relative density (98.6%), ultrafine grain size (271 nm) and high dislocation density (2.6 × 1016 m−2), which results in excellent properties such as a high hardness (1079 HV1). The high sintering pressure is considered to support an additional driving force for the sintering and lead to a low-temperature densification, which effectively limits grain growth.

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Uniform nanosized oxide particles dispersion strengthened tungsten alloy fabricated involving hydrothermal method and hot isostatic pressing

Abstract: Title: Uniform nanosized oxide particles dispersion strengthened tungsten alloy fabricated involving hydrothermal method and hot isostatic pressing Article Type: Full Length Article

Cited by 27 publications

References 49 publications

Research on the effect of liquid-liquid doping processes on the doped powders and microstructures of W–ZrO2(Y) alloys

Research on the effect of liquid-liquid doping processes on the doped powders and microstructures of W–ZrO2(Y) alloys

Research on preparation process for the in situ nanosized Zr(Y)O2 particles dispersion-strengthened tungsten alloy through synthesizing doped hexagonal (NH4)0.33·WO3

Ultrafine-Grained Tungsten Heavy Alloy Prepared by High-Pressure Spark Plasma Sintering

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