Phase transformation and thermal stability of mechanically alloyed W–Ni–Fe composite materials

Zhang, Zhongwu; Zhou, Jinxiong; Shen, Xi; Ran, Guang; Li, Pengliang

doi:10.1016/j.msea.2004.02.039

Cited by 59 publications

(26 citation statements)

References 16 publications

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“…High energy mechanical milling is a very effective process for synthesis of metal/ceramic composite powders and for producing powders with nanocrystalline structures [9]. W-B 4 C-C systems can be utilized to synthesize tungsten borides.…”

Section: Tungsten (W) Has the Highest Melting Point (Varies Between 3387mentioning

confidence: 99%

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Sönmez

Öveçoğlu

2017

Acta Phys. Pol. A

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Mechanical alloying processes were carried out in a Spex mixer/mill to synthesize W-2wt% B4C-xwt% C (x = 0, 0.25, 0.5, 1) powders for durations of 1 and 9 h in argon atmosphere. Mechanically alloyed powders were consolidated into green compacts by uniaxial cold press under 500 MPa and solid phase sintered at 1770• C under hydrogen and argon atmospheres for 1 h and 5 h. Effects of milling duration as well as C addition on the microstructural and mechanical properties of the sintered W-2wt% B4C-xwt% C composite samples were investigated. The microstructural and mechanical characterizations of the sintered samples were carried out by scanning electron microscope, energy dispersive X-ray spectroscopy, X-ray diffraction, and Vickers hardness analyses. Density measurements and hardness measurements of the sintered samples were also carried out.

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Section: Tungsten (W) Has the Highest Melting Point (Varies Between 3387mentioning

confidence: 99%

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Sönmez

Öveçoğlu

2017

Acta Phys. Pol. A

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“…Recent studies on this topic have focused on improving the susceptibility of the WHAs to ASBs so as to develop "self-sharpening" capability of the WHAs penetrators [3,[15][16][17][18]. The severe plastic deformation (SPD) methods were used to improve the properties of the WHAs [7,[19][20][21][22].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Investigation on the penetration performance and “self-sharpening” behavior of the 80W–14Cu–6Zn penetrators

Fang

Liu

Wang

et al. 2016

International Journal of Refractory Metals and Hard Materials

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“…The metallurgical fabrication of these nanostructured alloys is expensive due to tungsten's high melting point. Therefore, other procedures for their production have been developed, such as mechanical alloying, sputtering, or electrolytic deposition from water baths [8][9][10][11][12][13][14][15][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Effect of Microstructural Changes during Annealing on Thermoelectromotive Force and Resistivity of Electrodeposited Ni_85.8Fe_10.6W_1.4Cu_2.2 Alloy

Spasojević¹,

Maricic²,

Vuković³

et al. 2017

Journal of Nanomaterials

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Cu 2.2 alloy powder containing nanocrystals of an FCC-structured solid solution of iron, tungsten, and copper in nickel embedded in an amorphous matrix was electrodeposited from an ammonia citrate solution. The alloy exhibits thermal stability in the temperature range between 25 ∘ C and 150 ∘ C. Over the range 150−360 ∘ C, the alloy undergoes intense structural relaxation which considerably increases the electron density of states and, hence, its electrical conductivity. Less intense structural relaxation takes place at temperatures between 360 ∘ C and 420 ∘ C. In the temperature range of 420 ∘ C to 460 ∘ C, relatively more intense changes in the electron density of states at the Fermi level occur, as induced by the structural relaxation resulting from the stabilization of larger less mobile tungsten atoms and copper atoms. The large decrease in electrical resistivity and the high increase in the electron density of states at the Fermi level in the temperature range 460−520 ∘ C are due to amorphous matrix crystallization and FCC-phase crystal grain growth.

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Phase transformation and thermal stability of mechanically alloyed W–Ni–Fe composite materials

Cited by 59 publications

References 16 publications

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Investigation on the penetration performance and “self-sharpening” behavior of the 80W–14Cu–6Zn penetrators

Effect of Microstructural Changes during Annealing on Thermoelectromotive Force and Resistivity of Electrodeposited Ni_85.8Fe_10.6W_1.4Cu_2.2 Alloy

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Phase transformation and thermal stability of mechanically alloyed W–Ni–Fe composite materials

Cited by 59 publications

References 16 publications

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B4C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B4C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Investigation on the penetration performance and “self-sharpening” behavior of the 80W–14Cu–6Zn penetrators

Effect of Microstructural Changes during Annealing on Thermoelectromotive Force and Resistivity of Electrodeposited Ni85.8Fe10.6W1.4Cu2.2 Alloy

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Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Physical Properties and Microstructural Characterization of Mechanically Alloyed and Sintered W-2wt%B₄C-xwt%C (x=0, 0.25, 0.5, 1) Composites

Effect of Microstructural Changes during Annealing on Thermoelectromotive Force and Resistivity of Electrodeposited Ni_85.8Fe_10.6W_1.4Cu_2.2 Alloy