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atomized powders

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Journal Articles
AM&P Technical Articles (2015) 173 (8): 20–27.
Published: 01 September 2015
... in 2018. This article documents the development history leading up to that decision. It took decades to perfect powder atomization and HIP'ing processes to make optical-grade beryllium components homogeneous, isotropic, polishable, thermally and dimensionally stable, and above all, predictable...
Journal Articles
AM&P Technical Articles (2012) 170 (9): 16–22.
Published: 01 September 2012
... atomized powders powder metallurgy sponge fines titanium powder titanium alloys httpsdoi.org/10.31399/asm.amp.2012-09.p016 Titanium Powder Metallurgy: A Review Part 1 F.H. (Sam) Froes, FASM* Tacoma, Wash. Titanium and its alloys are the materials of choice for many applications, but high cost...
Journal Articles
AM&P Technical Articles (2017) 175 (8): 37–38.
Published: 01 November 2017
... the bonding mechanism and complex thermomechanical history of the metal powder particles during cold spray. Starting with the atomized powders, EBSD enables an understanding of the crystallite size as the lattice strain in the starting powder, by means of a Euler angle map. The as-sprayed coating (Fig. 1 c, d...
Journal Articles
AM&P Technical Articles (2017) 175 (5): 59–62.
Published: 01 July 2017
... enables identification of the phases in the coldsprayed coating in a unique manner. Cold-sprayed coatings are complex by nature, largely due to the severely plastically deformed structure of the atomized powders, which are obtained by rapid solidification. In addition, the high strain rates (106 to 108/s...
Journal Articles
AM&P Technical Articles (2012) 170 (1): 19–23.
Published: 01 January 2012
... to the industry. High quality gas-atomized powders replaced earlier powder forms (manufactured via milling or water atomization).This development virtually eliminated oxidation and porosity concerns. Materials and processes used to manufacture pressure-retention or high-temperature power plant components...
Journal Articles
AM&P Technical Articles (2019) 177 (8): 42–43.
Published: 01 November 2019
...Dheepa Srinivasan This article series explores the indispensable role of characterization in the development of cold spray coatings and illustrates some of the common processes used during coating development. Copyright © ASM International® 2019 2019 ASM International cold spraying powder...
Journal Articles
AM&P Technical Articles (2020) 178 (6): 46–48.
Published: 01 September 2020
...Virginia Osterman Temperature measurement, unvented cavities, loose powder, and direct contact of certain metals must be considered during process development for vacuum heat treatment of additively manufactured parts. Temperature measurement, unvented cavities, loose powder, and direct contact...
Journal Articles
AM&P Technical Articles (2021) 179 (5): 20–23.
Published: 01 July 2021
...]. OBSERVATIONS IN AS-BUILT SAMPLES Ti-6Al-4V specimens were produced at Oak Ridge National Laboratory Manufacturing Demonstration Facility using an ARCAM EBM Q10plus system and TEKNA Ti-6Al-4V plasma atomized powder. Each specimen had a geometry of 15 x 15 x 25 mm. Three different scan strategies were used...
Journal Articles
AM&P Technical Articles (2012) 170 (10): 26–29.
Published: 01 October 2012
... approach This method uses prealloyed powder (generally spherical in shape) produced by melting, either by plasma rotating electrode processing (PREP), plasma (either atomization or spheroidization), or gas atomization (GA), followed by hot consolidation typically by hot isostatic pressing[2]. Mechanical...
Journal Articles
AM&P Technical Articles (2019) 177 (5): 46–49.
Published: 01 July 2019
... of electromagnetic induction to ionize gas atoms as they pass through the center of an electromagnetic coil. Analogous to other thermal spray technologies, the gas is heated due to the ionization, enabling the introduction of solid powder particles, which are melted and sprayed onto a substrate (Fig. 2...
Journal Articles
AM&P Technical Articles (2014) 172 (7): 20–24.
Published: 01 July 2014
.... Two high-purity 99.99% Cu powders (A and B) were atomized in argon, while a third low-purity 99.8% Cu 20 ADVANCED MATERIALS & PROCESSES JULY 2014 Particle count 1000 (a) 100 10 Particle size distribution Powder A Single Powder A Bulk Powder B Powder C (c) (d) 1 1-10 11-20 21-30 31-40 41-50 51-60...
Journal Articles
AM&P Technical Articles (2023) 181 (8): 29–31.
Published: 01 November 2023
... application in small motors for a range of industrial, consumer electronic, and computer peripheral applications. Such thinwalled ring magnets are almost impossible to produce by sintering. Croat s method was later developed into a hot-deformed process in which nanocrystalline magnetic powder made via...
Journal Articles
AM&P Technical Articles (2016) 174 (3): 40.
Published: 01 March 2016
..., George retired as Ajax Toc- Powdered metal atomization: George was part of the early gas atomization process for the production of fine, pure, and high temperature metal powders. co s VP of Technology, after working for 50 years. He then Hot metal gas forming: George was an integral part of rejoined...
Journal Articles
AM&P Technical Articles (2020) 178 (3): 22–25.
Published: 01 April 2020
... ingots are produced by vacuum melting whereas HSCR steel powder is produced through atomization, including vacuum atomization. Critical components can be manufactured from HSCR steel by the following processes: 1. Hot working (HW) of premiumquality ingots by forging, rolling, and pressing, followed...
Journal Articles
AM&P Technical Articles (2017) 175 (2): 40–42.
Published: 01 February 2017
...Dheepa Srinivasan; GE Power In cold spray characterization, scanning electron microscopy is used to analyze feedstock powders for particle size, distribution, shape, and chemical composition prior to spraying. SEM is used extensively to characterize coating chemistry via energy-dispersive x-ray...
Journal Articles
AM&P Technical Articles (2014) 172 (11): 41–44.
Published: 01 November 2014
...Craig Zimmermann; Nick Bugliarello-Wondrich Boriding is performed by diffusing boron atoms into a metal surface and allowing the boron to react with elements present in the substrate to form metal-boride compounds. Upon diffusing enough boron into the surface, a metal-boride compound layer...
Journal Articles
AM&P Technical Articles (2021) 179 (5): 53–54.
Published: 01 July 2021
... such as interferometry (using an optical profiler), atomic force microscopy, or scanning tunneling microscopy. Simple to use, a profilometer run on a cold spray coating is an indirect indicator of the extent of deformation and bonding of the powder particles in the coating. In many instances, nitrogen coatings have...
Journal Articles
AM&P Technical Articles (2020) 178 (5): 15–19.
Published: 01 July 2020
...Soumya Mandal; Ritesh Sachan; Amit Pandey This article explains how SEM, TEM, and atom probe tomography are being used in the development of additively manufactured high-entropy alloys (HEAs), revealing critical features such as anisotropic microstructure and metallurgical defects. It also...
Journal Articles
AM&P Technical Articles (2021) 179 (1): 32–37.
Published: 01 January 2021
... with the conventional use of gas-atomized feedstock powder. In addition to studying the virial inactivation rates achieved via Cu cold spray as a function of the microstructure of the resultant coatings, the conventional Cu cold spray coating process was redeployed two additional times using two additionally gas...
Journal Articles
AM&P Technical Articles (2014) 172 (8): 37–38.
Published: 01 August 2014
..., Ontario Atomizing gas Wire T hermal spray technology was invented in the late 1800s to restore worn metal parts and provide surface protection. Initially known as metallizing, it became more popular during World War II for fast repair of tanks and other vehicles in high demand. Today, thermal spray...