Formation of non–equilibrium alloys by high pressure melt quenching

Hu, Z. Q.; Ding, B.Z.; Zhang, H.F.; Li, D.J.; Yao, Bing; Liu, H.Z.; Wang, A.M.

doi:10.1016/s1468-6996(01)00024-9

Cited by 17 publications

(5 citation statements)

References 15 publications

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“…Using high pressures -suppressing the diffusion processes and lowering the critical cooling rate of the amorphous formation -metallic glasses can be induced at a relatively lower cooling rate [33].…”

Section: S Y N T H E S I S O F a M O R P H O U S A L L O Y Smentioning

confidence: 99%

High Pressure and Chemical Bonding in Materials Chemistry

Demazeau

2006

Zeitschrift Für Naturforschung B

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Materials chemistry under high pressures is an important research area opening new routes for stabilizing novel materials or original structures with different compositions (oxides, oxoborates, nitrides, nitridophosphates, sulfides,...).Due to the varieties of chemical compositions and structures involved, high pressure technology is also an important tool for improving the investigations on chemical bonding and consequently the induced physico-chemical properties.Two different approaches can be described: (i) the chemical bond is pre-existing and in such a case, high pressures lead to structural transformations, (ii) the chemical bond does not exist and high pressures are able to help the synthesis of novel materials. In both cases the condensation effect (∆V < 0 between precursors and the final product) is the general rule. In addition, through the improvement of the reactivity, high pressures can lead to materials that are not reachable through other chemical routes.

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Section: S Y N T H E S I S O F a M O R P H O U S A L L O Y Smentioning

confidence: 99%

High Pressure and Chemical Bonding in Materials Chemistry

Demazeau

2006

Zeitschrift Für Naturforschung B

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“…This morphology provides the largest benets in term of reactivity, as opposed to truncated octahedron nanoparticles which are predominantly terminated by h111i highly stable facets. It has also been shown that incorporating La 3+ into the ceria lattice can create defects, including oxygen vacancies, due to the difference in the ionic radius between Ce 4+ (0.097 nm) and La 3+ (0.110 nm), 17 which should further increase reactivity. There are studies which show that the cubic uorite structure of ceria is maintained with the incorporation of lanthanum, 18 however the extent of doping that can be achieved in highly reactive nanocubes has not been established.…”

Section: Introductionmentioning

confidence: 99%

Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability

et al. 2019

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“…Pressure quenching (PQ) of a liquid alloy is a good method for preparation of bulk nanomaterials [14,15,16,17,18]. The material is first heated to melting under pressure, and quenching solidification is performed from the molten state.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel

Wang

Yang

2019

Materials

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Bulk SS304 polycrystalline materials with ultrafine microstructures were prepared via a high-pressure self-heating melting and quenching method. Analyses of phase composition, grain size and microstructure were performed using metallographic analysis, X-ray diffraction, Rietveld refinement and transmission electron microscope (TEM). The effects of pressure and cooling rate on the solidification of SS304 were analyzed. Mechanical property test results show that, compared with the as-received sample, the hardness and the yield strength of the pressure-quenched (PQ) samples were greatly increased, the ultimate tensile strength changed minimally, and the elongation rate became small, primarily due to the large density of dislocations in the sample. The high-pressure self-heating melting and quenching method is an exotic route to process a small piece of steel with moderate properties and ultrafine microstructure.

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Formation of non–equilibrium alloys by high pressure melt quenching

Cited by 17 publications

References 15 publications

High Pressure and Chemical Bonding in Materials Chemistry

High Pressure and Chemical Bonding in Materials Chemistry

Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability

Microstructure and Mechanical Properties of Pressure-Quenched SS304 Stainless Steel

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