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powder consolidation

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Published: 30 September 2015
Fig. 15 Schematic of cold isostatic press (CIP) and extrusion powder consolidation process for aluminum-beryllium alloys. HIP, hot isostatic press More
Image
Published: 01 January 1990
Fig. 3 Schematic diagrams of two powder consolidation methods. (a) Vacuum hot pressing. In this method, a column of loose beryllium powders is compacted under vacuum by the pressure of opposed upper and lower punches (left). The billet is then brought to final density by simultaneous More
Image
Published: 30 September 2015
Fig. 8 Sequence of direct consolidation of the blended elemental (BE) powder-based mill product processing steps. (a) Raw TiH 2 was powder blended with a master alloy for Ti-6Al-4V composition, then cold isostatically pressed (CIPed) at 448 MPa (65 ksi) pressure. The green compacts are vacuum More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006053
EISBN: 978-1-62708-175-7
... Abstract Consolidation and shaping of grade powders is carried out using several methods, depending on the size, complexity, shape, and quantity of parts required. This article details the powder consolidation methods of carbide powders: uniaxial pressing, cold isostatic pressing, extrusion...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006142
EISBN: 978-1-62708-175-7
...” in this Volume. A number of traditional metal working methods, such as rolling, forging, and extrusion, are found suitable for consolidating metal powders into high density PM materials. These processes are adapted to accommodate powders or powder compacts as feed material without much difficulty. Also...
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Published: 30 September 2015
Fig. 24 Effect of temperature on yield strength for four heats of gas-atomized 316 stainless steel powder consolidated via HIP to the minimum strength level required by the ASME boiler and pressure vessel code (bottom line). Source: Ref 33 More
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Published: 30 September 2015
Fig. 5 Three basic approaches to the consolidation of metal powders. Source: Ref 8 More
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Published: 30 September 2015
Fig. 10 Graphite die used to consolidate beryllium powder by vacuum hot pressing More
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Published: 15 June 2020
Fig. 46 Density and volumetric shrinkage of binder-jet-consolidated copper powder (15 μm median size, 96.3% purity) sintered at 1060 °C (1940 °F) for 2 h in both reducing and nonreducing atmospheres. Source: Ref 42 More
Image
Published: 01 December 2004
Fig. 23 I-400 vacuum hot-pressed block; billet consolidated from ball-milled powder. Under polarized light, microstructure shows substantially equiaxed grains with particles of BeO, along with bright areas where BeO was “pulled out” during preparation. Average grain size is 5 μm or less More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001086
EISBN: 978-1-62708-162-7
.... Beginning with an overview of the mining and refining processes of beryllium, this article discusses powder production and consolidation methods, beryllium grades and their designations, and the protective measures that have been enacted to reduce exposure to beryllium. beryllium beryllium...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006058
EISBN: 978-1-62708-175-7
... Abstract This article briefly describes the production of beryllium powder and beryllium/beryllium oxide metal-matrix powder. It discusses fully dense consolidation methods: vacuum hot pressing, hot isostatic pressing, and cold isostatic pressing. Secondary fabrication operations of beryllium...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006042
EISBN: 978-1-62708-175-7
... (HIP) employs elevated temperature and pressure to consolidate metal powders, clad similar and dissimilar alloys, and eliminate porosity in castings. This article addresses metal powder processing via HIP and HIP cladding when metal powders are being employed in the cladding process. Figure 1...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003165
EISBN: 978-1-62708-199-3
..., from which it inherits the fine grain size (5 to 15 μm) from the powder processing. Powder consolidation is done by vacuum hot pressing and has also been done by hot isostatic pressing or cold isostatic pressing followed by vacuum sintering. Consolidated beryllium shows only modest ductility (≤3...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
..., electrochemical, atomizing, oxide reduction, and thermal decomposition processes. It also covers the consolidation of powders by pressing and sintering, as well as by high density methods. Further emphasis is provided on the distinguishing features of powders, their manufacturing processes, compacting processes...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006095
EISBN: 978-1-62708-175-7
... and microstructure strongly depend on the nature and type of powder used and the specific consolidation technique employed. Consolidation methods include cold isostatic pressing (CIP) into green compacts, or hot and cold die pressing, followed by sintering at high temperatures (above β transus) in vacuum...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006045
EISBN: 978-1-62708-175-7
... Abstract Consolidation of titanium powders at room temperature may be performed by low-cost conventional powder metallurgy processes. This article provides information on various consolidation methods, namely, die pressing, direct powder rolling, and cold isostatic pressing. It also describes...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001064
EISBN: 978-1-62708-162-7
... Abstract This article discusses the applications of high-strength aluminum powder metallurgy (P/M) alloys, detailing the advantages, properties, and the various steps involved in P/M technology, including powder production, powder processing, and degassing and consolidation. Three areas...
Image
Published: 30 September 2015
Fig. 1 Nominal density levels achieved for AISI 4640 high-strength, low-alloy (HSLA) powder metallurgy (PM) steel using various PM consolidation processes. Hot isostatic pressing (HIP) achieves true pore-free material from powder. HT, high-temperature; DP-DS, double-press, double-sinter More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006094
EISBN: 978-1-62708-175-7
... to a suitable maximum particle size, blending the powder to homogenize powder size distribution, loading powder into containers, vacuum outgassing and sealing the containers, and consolidating the powder to full density. PM superalloys include Rene 95, IN-100, LC Astroloy, Udimet 720, N18, ME16, RR1000, Rene...