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powder blending

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006088
EISBN: 978-1-62708-175-7
... Abstract Blending of powders is defined as the thorough intermingling of powders of the same nominal composition. Premixing is the preparation of a uniform mixture of two or more components. This article provides information on the blending and premixing variables required to produce adequate...
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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.a0006056
EISBN: 978-1-62708-175-7
... Abstract Quality control of cemented carbides includes the evaluation of physical and chemical properties of constituent raw material powders, powder blends/formulations, green compacts, and fully dense finished product. This article provides a summary of the underlying principles and size...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006110
EISBN: 978-1-62708-175-7
..., development of liquid phase, and ability to sinter active elements in alloy steels. The article also provides information on three sources of process control requirements, namely, the powder blend, green density, and sintering conditions. alloy steels ferrous components high-temperature sintering...
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Published: 01 December 2004
Fig. 42 Water-atomized iron powder with 0.5% MnS blended for increased machinability. The MnS is the gray material (see arrows M) inside the darker pores. 2% nital. 330× More
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Published: 30 September 2015
Fig. 1 Titanium alloy parts manufactured by the blended elemental powder metallurgy approach from calcium-hydride-reduced titanium powder More
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
... the sintering of blended elemental powders, high-strength titanium alloys, and porous material as well as the sintering of titanium powders by microwave heating. cold isostatic pressing die pressing direct powder rolling high-strength titanium alloys microwave heating powder consolidation powder...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006086
EISBN: 978-1-62708-175-7
... of useful particles size and world production of different melt-atomized alloys. Source: Ref 1 Fig. 2 Some ranges of useful particle size for different applications of metal powders. Source: Ref 2 Another article in this Volume, “Blending and Premixing of Metal Powders and Binders...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006106
EISBN: 978-1-62708-175-7
..., which makes them compressible. These powders are often selected for high-density structural components, so they are typically compacted above 7.0 g/cm 3 . After blending with lubricant, brass and nickel-silver powders usually densify a minimum of approximately 10% beyond their as-atomized apparent...
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
... Abstract This article focuses on mechanical testing characterization of blended elemental powder metallurgy (PM) titanium alloys and prealloyed PM titanium alloys. It examines the tensile properties, fracture toughness, stress-corrosion threshold resistance, fatigue strength, crack propagation...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003135
EISBN: 978-1-62708-199-3
... widely for structural parts fabrication because their modular particle form and high apparent density result in low green strength. However, blends of such powders with irregular copper powders and phosphorus-copper yield sintered parts with good mechanical properties. Table 4 shows typical...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006097
EISBN: 978-1-62708-175-7
... is normally expected to lower the AD of the powder blend. The blending operation, however, tends to negate this effect because it causes the large, fragile particles to break up into smaller ones, and also because it leads to detachment of fine “satellites” from the particle surfaces. Hence, in addition...
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Published: 30 September 2015
Fig. 10 Comparison of the room-temperature fatigue life scatter bands of blended elemental (BE) and prealloyed (PA) Ti-6Al-4V compacts to that of a mill-annealed ingot metallurgy (IM) alloy. Blended elemental alloys were consolidated from chlorine-containing sponge fines blended with master More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006139
EISBN: 978-1-62708-175-7
..., these are remelted concurrently during the processing of each alloy. Finally, the screened alloy powder may be blended with dry organic lubricants, such as wax or stearates, for use in the manufacture of PM structural components. Subsequent reduction of oxides is not required for standard PM grades. Adjustment...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006074
EISBN: 978-1-62708-175-7
... powders is efficient. Blends of powders with disparate properties such as melting point can be processed by CIP to produce unique functional properties. Also, blends of powders with significantly different mechanical properties, that is, soft and ductile versus hard and brittle can be cold isostatically...
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Published: 15 June 2020
Fig. 9 Effect of sintering time on achieving full particle coalescence of different blends of virgin and used polyamide 12 powder. (Legend indicates percent of used powder in the blend.) Source: Ref 12 More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006136
EISBN: 978-1-62708-175-7
... with those used in the conventional ingot based process. Fig. 4 Comparison of the conventional ingot-based process with the direct powder rolling process for titanium alloy sheet In this process, the fine, irregular titanium powder or titanium alloy blend is fed from a hopper into the roll gap...
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...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005732
EISBN: 978-1-62708-171-9
... blends, clad powders, agglomerated and sintered powders, and gas-atomized powders. All may have the same overall particle size and chemistry, but the specific carbide grain size and how the carbide grain size is protected by the manufacturing method will impact the final product microstructure, coating...
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Published: 30 June 2023
) recovered material is blended with virgin top-off powder and sieved in centralized facility, away from machines; (4) powder hoppers refilled and staged for next-generation powder reuse. Source: Carpenter Additive More