1-20 of 129 Search Results for

prealloyed powders

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 December 2004
Fig. 53 High-leaded tin bronze liner (SAE 485); prealloyed powder, sintered on a steel backing strip (bottom), cold rolled, resintered. Copper grains; intergranular lead (black). See also Fig. 54 . NH 4 OH + H 2 O 2 . Original magnification 100× More
Image
Published: 01 January 1990
Fig. 25 P/M H19 die produced using prealloyed powder and the ceramic core process. Courtesy of Crucible Materials Corporation More
Image
Published: 01 December 1998
Fig. 5 Pressing characteristics of premixed and prealloyed 90Cu-10Sn powders More
Image
Published: 30 September 2015
Fig. 1 Pressing characteristics of premixed and prealloyed 90Cu-10Sn powders. Source: Ref 1 More
Image
Published: 30 September 2015
Fig. 8 Properties of prealloyed bronze powders. Sintered 30 min at 840 °C (1550 °F) in a dissociated ammonia atmosphere More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006140
EISBN: 978-1-62708-175-7
... Abstract Prealloyed (PA) powder metallurgy is a technique where complex near-net shape titanium aircraft components are fabricated with low buy-to-fly ratios. This article describes the physical principle, mechanism, and simulation and modeling of metal can and hot isostatic pressing (HIP...
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
... prime. This article provides a discussion on the conventional processing, compositions, characteristics, mechanical properties, and applications of powder metallurgy (PM) superalloys. The conventional processing of PM superalloys involves production of spherical prealloyed powder, screening...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... the mechanical property data for copper and graphite powders mixed with an iron powder base to produce materials that generally contain 2″ Cu, including tensile, impact, and fatigue properties. Heat treatment procedures used in developing the properties of the prealloyed powder forged materials are also covered...
Image
Published: 30 September 2015
Fig. 7 Effect of alloying or compressibility and green strength of steel compacts. (a) Compressibility of water-atomized prealloyed powders (prealloyed powder samples mixed with 0.5% graphite + 0.75% zinc stearate and pressed to 6.8 g/cm 3 . Source: Ref 6 . (b) Green strength of steel More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006084
EISBN: 978-1-62708-175-7
... Abstract Atomization is the dominant method for producing metal and prealloyed powders from aluminum, brass, iron, low-alloy steels, stainless steels, tool steels, superalloys, titanium alloys, and other alloys. The general types of atomization processes encompass a number of industrial...
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
..., and nickel-silver. brass alloys bronze compaction dies hydraulic pressing machines lubricant nickel-silver powder metallurgy powder pressing prealloyed bronze sintering structural defects BRONZE AND BRASS ALLOYS are two key classes of materials in copper-base powder metallurgy (PM...
Image
Published: 01 January 1990
the re-pressing pressure and the grid line that indicates the green compacting pressure. (a) Prealloyed powder. (b) Diffusional alloy made from elemental powders More
Image
Published: 01 December 1998
-pressing pressure and the grid line that indicates the green compacting pressure. (a) Prealloyed powder. (b) Diffusion-alloyed powder More
Image
Published: 30 September 2015
Fig. 10 Example of the impact of repressing on the mechanical properties of a sintered prealloyed powder metallurgy bronze. Courtesy of SCM Metal Products, Inc. More
Image
Published: 30 September 2015
sintering with prealloyed powders. Source: Ref 153 More
Image
Published: 30 September 2015
Fig. 19 Type of thermally induced porosity caused by a leak in the HIP capsule, which allows the inert argon atmosphere in the HIP unit to penetrate the capsule into the powder during HIP. (a) Unetched micrograph of HIP PM Ti-6Al-4V material made using encapsulated HIP of prealloyed powder More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006081
EISBN: 978-1-62708-175-7
... and low-alloy steels are classified into three general types depending on the alloying process ( Fig. 2 ). Prealloyed powders are produced by melting and subsequent atomization, so powder particles are of similar alloy composition. In contrast, admixed powders are alloyed during sintering, which requires...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006101
EISBN: 978-1-62708-175-7
... Abstract This article summarizes the general classification, mechanical properties, and applications of ferrous powder metallurgy (PM) materials for parts production. It discusses four principal ferrous PM alloy types: admixed elemental alloys, diffusion alloys, prealloys, and hybrid alloys...
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
...: Preblending copper powders with other elemental powders such as tin, zinc, or nickel Prealloying during powder production Preblending Preblended powders are mixtures of selected compositions, with or without lubricant, that form the desired alloy during sintering. The most common P/M copper alloy...
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...