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Keywords: powder metallurgy
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2024
ISBN: 978-0-8031-7745-1
... ability, powder metallurgy (PM) steels have been considered in recent years as a consistent solution. At the last ASTM congresses, ASP2055, a PM steel presenting an interesting hardness-toughness compromise, was presented. In 2016, the potential of this steel for aerospace applications was demonstrated...
eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7150-3
... Powder metallurgy was in the past synonymous with sintered and forged component production for nondemanding rolling bearing applications. State-of-the-art powder metallurgy (PM) in combination with hot isostatic pressing (HIP) is capable of producing steel qualities suitable for demanding...
eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7150-3
... contact automotive wheel ball bearings is introduced. Air-melt steelmaking, casting and rolling and remelt steelmaking such as vacuum induction melting, electroslag remelting and vacuum arc remelting are reviewed for special requirements such as precision aerospace. Clean-steel powder metallurgy...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7721-5
... performance with an additional 4°C of cooling compared to traditionally manufactured cold plates. additive manufacturing thermal management copper stereolithography powder metallurgy PROGRESS IN ADDITIVE MANUFACTURING 2020 131 STP 1637, 2022 / available online at www.astm.org / doi: 10.1520...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2020
ISBN: 978-0-8031-7692-8
... High-hardness, high-carbide powder metallurgy tool steels such as M62 enable the use of ball bearings at extremely high load and stress levels increasing the potential for rolling contact fatigue failure attributed to nonmetallic inclusions. Ever-cleaner steels are sought, but the results have...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2020
ISBN: 978-0-8031-7692-8
... the fatigue life and reliability. The research on high-performance material is a good opportunity to promote the introduction of powder metallurgy steel. Powder metallurgy for bearing steel manufacturing was introduced several decades ago, but the effective use in aerospace engines is still very limited...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7643-0
... Powder metallurgy (PM) for bearing steel manufacturing was introduced several decades ago and mainly aimed at limiting segregation effects in high-alloy grades. Despite the significant potential of this relatively new process for producing high-performance bearing steels, its use in commercial...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7643-0
... The load-carrying demands for rolling bearing components are constantly increasing and the bearing materials are required to be progressively durable. The industry is familiar with incremental rolling bearing material improvements and these are well documented. The testing of powder metallurgy...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2868-1
ISBN: 978-0-8031-2868-2
... The fatigue lives of modern powder metallurgy disk alloys are influenced by variabilities in alloy microstructure and mechanical properties. These properties can vary as functions of variables the different steps of materials/component processing: powder atomization, consolidation, extrusion...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2608-5
ISBN: 978-0-8031-2608-4
... This study analysed the possibility of producing biocompatible, porous functionally graded metallic acetabular cups using powder metallurgy techniques, where a porous surface provided a substrate for incorporating a polymeric compliant layer which was supported by a rigid inner core. Two...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1850-3
ISBN: 978-0-8031-1850-8
... of the extruded materials through powder metallurgy (P/M) route were extremely fine as compared to ingot metallurgy (I/M) materials. Nonmetallic inclusions were finely dispersed and the materials were rated to have good cleanliness per ASTM E 45-85 (Method A), Practice for Determining the Inclusion Content...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1484-2
ISBN: 978-0-8031-1484-5
... solidification powder metallurgy metallurgical specimens microstructure metallographic techniques Kevin L. Zetk, ) Iver E. Anderson, 2 Donald A. KOSS, 3 and Paul R. HowelP Microstructural Investigationsof Rapidly Solidified Copper-Niobium (Cu-Nb) Alloy Powders Produced by Inert Gas Atomization REFERENCE...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1444-3
ISBN: 978-0-8031-1444-9
... size, and in determining the mix ratio of silicon carbide (SiC) reinforcement particles in aluminum matrix alloy powders. Ultrasonic techniques were capable of identifying SiC clusters in large-scale, consolidated powder metallurgy (P/M) metal-matrix composite (MMC) billets, while eddy-current methods...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1399-4
ISBN: 978-0-8031-1399-2
... in T-15, since it is one of the most highly alloyed of the high speed steels. T-15 is therefore a prime candidate for powder metallurgy techniques, because the fine, uniformly distributed carbides provided by the process greatly improve workability and grindability with no sacrifice in hot hardness...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
... the evolution of the microstructural state during processing. These principles are illustrated with applications to evolving porous structures. aluminum alloys powder metallurgy stereology microstructural evolution Robert T. DeHoff Stereological Characterization of Porous Microstructures REFERENCE...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
... and which compare quite favorably with those of other Al-Li alloys. aluminum alloys Al-Li alloys Al-Li-Zr alloys mechanical properties phase transformations transmission electron microscopy electron energy loss spectroscopy powder metallurgy Frank W. Gayle^ and John B. Vander Sande^ AlsLi...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
... a grain morphology standpoint, a columnar and an equiaxed zone can be distinguished. The metastable solidification paths leading to their formation are briefly discussed. aluminum alloys powder metallurgy rapid solidification hardening mechanisms aluminum-iron alloys Salim Dermarkar...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
... characteristics. aluminum aluminum alloys 7XXX aluminum alloy metal powder rapid solidification powder metallurgy mechanical properties James W. Bohlen, ^ Ramesh J. Kar, ^ and Govind R. Chananf A Comparative Evaluation of Aluminum Alloy Powders Used for Fabricating High-Strength Powder Metallurgy...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
... as a function of aging at temperatures up to 773 K. aluminum alloys powder metallurgy rapid solidification processing aluminum-nickel alloys A1-4.1Fe-0.6Mo Al-4.1Fe-0.6Ce melt spinning laser surface melting Jacob W. Zindel, ^ James T. Stanley, ^ Robert D. Field, ^ and Hamish L. Fraser^ Rapid...
eBook Chapter
Series: ASTM Select Technical Papers
Publisher: ASTM International
Published: 1986
ISBN-10: 0-8031-0442-1
ISBN: 978-0-8031-0442-6
.... aluminum alloys 8 to 12% iron aluminum alloys elevated-temperature aluminum alloys rapid solidification powder metallurgy mechanical properties David J. Skinner, ^ Kenji Okazaki, ^ and Colin M. Adam ^ Physical Metallurgy and Mechanical Properties of Aluminum Alloys Containing Eight to Twelve Weight...