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Effect of Powder Pr...
Effect of Powder Processing on the Sintering Mechanisms of Carbonyl and Water-atomized Iron Powders
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- Wendel, Johan, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Shvab, Ruslan, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Karamchedu, Seshendra, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hryha, Eduard, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nyborg, Lars, 1958 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Riabov, Dmitri (författare)
- Höganäs AB
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- Berg, Sigurd (författare)
- Höganäs AB
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(creator_code:org_t)
- ISBN 9781899072484
- 2016
- 2016
- Engelska.
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Ingår i: World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016; Hamburg; Germany; 9 October 2016 through 13 October 2016. - 9781899072484
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- Metal injection molding (MIM) is an attractive alternative for net-shape manufacturing of components with high demands on shape complexity. Spherical powders with small particle sizes and a wide size distribution are generally preferred for MIM parts. In this study, the sintering behavior of an annealed spherical carbonyl iron powder, a standard carbonyl iron, and a sieved (-45 µm) water-atomized iron powder was investigated. Injection molded compacts made from the respective powders were sintered in a dilatometer in a hydrogen atmosphere to study the shrinkage behavior. The shrinkage of the powder during heating stage was related to the surface area, morphology and surface chemistry of the powders. Surface composition of the powders was studied by X-ray photoelectron spectroscopy (XPS) and high-resolution scanning electron microscopy (HR SEM) combined with energy dispersive X-ray analysis (EDX). Results show strong correlation between the sintering activity to the surface chemical composition of the powder and surface area.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- surface composition
- carbonyl iron powder
- sintering
- powder morphology
- water-atomized iron powder
- densification
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Wendel, Johan, 1 ...
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Shvab, Ruslan, 1 ...
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Karamchedu, Sesh ...
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Hryha, Eduard, 1 ...
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Nyborg, Lars, 19 ...
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Riabov, Dmitri
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visa fler...
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Berg, Sigurd
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visa färre...
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