Structure/property evaluation and comparison between shock-wave consolidated and hot-isostatically pressed compacts of RSP pyromet 718 alloy powders

Thadhani, Naresh N.; Mutz, A. H.; Vreeland, T.

doi:10.1016/0001-6160(89)90016-3

Cited by 29 publications

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“…But this process typically involves long exposures to elevated temperatures, during which the non-equilibrium microstructure of the powder can evolve towards lower energy configurations with inferior properties [2]. Pressure-assisted compaction techniques, by contrast, can consolidate green parts with simple shapes while preserving the microstructure and properties of the powder feedstock [3][4][5]. But parts made with these processes generally require additional post-processing, including machining, which introduces new challenges due to the high hardness of these materials.…”

Section: Introductionmentioning

confidence: 99%

Collaboration for the Advancement of Indirect 3D Printing Technology

Cordero

Elliott

2016

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Section: Introductionmentioning

confidence: 99%

Collaboration for the Advancement of Indirect 3D Printing Technology

Cordero

Elliott

2016

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Explosive Compaction of powders, principle and prospects

Prümmer

1989

Materialwissenschaft Werkst

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The explosive compaction method consisting of a cylindrical container surrounded by a proper type and amount of explosive is an inexpensive method to achieve high densities close to theoretical density. The explosive's parameters have to be adjusted to the type of the powder to be compacted. The required explosive's pressure is linearly related to the Vickers hardness of the metal powder particles. If higher pressures are applied, an “explosive liquid phase sinter” ‐ process can be achieved, allowing the welding of individual particles. The residual properties of the material are characterized by a high defect structure and by dislocation densities and subgrain sizes comparable to those after heavy plastic deformation. The same is true of compacted ceramic powders. Enhanced sinter reactivity, chemical and catalytic reactivity may be the result of high values of stored energy observed in the ceramic materials, shock wave treated under conditions of explosive compaction. The properties of materials produced by shock‐wave synthesis or by shock‐wave transformation are also determined by a high‐density defect structure.

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Mechanical Characteristics and Microstructural Changes of Solids Under Shock Compression

Бацанов

1994

Effects of Explosions on Materials

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Structure/property evaluation and comparison between shock-wave consolidated and hot-isostatically pressed compacts of RSP pyromet 718 alloy powders

Cited by 29 publications

References 9 publications

Collaboration for the Advancement of Indirect 3D Printing Technology

Collaboration for the Advancement of Indirect 3D Printing Technology

Explosive Compaction of powders, principle and prospects

Mechanical Characteristics and Microstructural Changes of Solids Under Shock Compression

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