Details
| Original language | English |
|---|---|
| Title of host publication | Euro PM 2014 Congress and Exhibition, Proceedings |
| ISBN (electronic) | 9781899072446 |
| Publication status | Published - 1 Jan 2014 |
| Event | Euro PM 2014 International Conference and Exhibition - Salzburg, Austria Duration: 21 Sept 2014 → 24 Sept 2014 |
Publication series
| Name | Euro PM 2014 Congress and Exhibition, Proceedings |
|---|
Abstract
This work is focused on increasing the local wear resistance of PM components by producing an adapted hard material gradient in highly stressed areas. The production principles are investigated by axial pressing and sintering of cylindrical specimens. The gradients are produced through a graded dispersion of tungsten carbide in a ductile matrix powder. In subsequent experiments, wear resistant graded forging dies are fabricated consisting of alloyed steel as a ductile base material and a gradient of fused tungsten carbide (FTC). In order to achieve a full compaction and sufficient mechanical properties, the graded die is manufactured by hot isostatic pressing. Using the near-net-shape approach, a solid mold element is applied during pressing to form the die contour geometry in the graded powder bulk. Thereby, the gradient structure can be produced parallel to the die contour and an excessive material removal through final machining is avoided.
Keywords
- Functionally graded materials, Hot isostatic pressing, Powder metallurgy, Wear resistant materials
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Surfaces, Coatings and Films
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Euro PM 2014 Congress and Exhibition, Proceedings. 2014. (Euro PM 2014 Congress and Exhibition, Proceedings).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Manufacturing of functionally graded PM materials for hot work tools
AU - Behrens, Bernd Arno
AU - Vahed, Najmeh
AU - Brand, Helmut
AU - Volker, Kai Uwe
PY - 2014/1/1
Y1 - 2014/1/1
N2 - This work is focused on increasing the local wear resistance of PM components by producing an adapted hard material gradient in highly stressed areas. The production principles are investigated by axial pressing and sintering of cylindrical specimens. The gradients are produced through a graded dispersion of tungsten carbide in a ductile matrix powder. In subsequent experiments, wear resistant graded forging dies are fabricated consisting of alloyed steel as a ductile base material and a gradient of fused tungsten carbide (FTC). In order to achieve a full compaction and sufficient mechanical properties, the graded die is manufactured by hot isostatic pressing. Using the near-net-shape approach, a solid mold element is applied during pressing to form the die contour geometry in the graded powder bulk. Thereby, the gradient structure can be produced parallel to the die contour and an excessive material removal through final machining is avoided.
AB - This work is focused on increasing the local wear resistance of PM components by producing an adapted hard material gradient in highly stressed areas. The production principles are investigated by axial pressing and sintering of cylindrical specimens. The gradients are produced through a graded dispersion of tungsten carbide in a ductile matrix powder. In subsequent experiments, wear resistant graded forging dies are fabricated consisting of alloyed steel as a ductile base material and a gradient of fused tungsten carbide (FTC). In order to achieve a full compaction and sufficient mechanical properties, the graded die is manufactured by hot isostatic pressing. Using the near-net-shape approach, a solid mold element is applied during pressing to form the die contour geometry in the graded powder bulk. Thereby, the gradient structure can be produced parallel to the die contour and an excessive material removal through final machining is avoided.
KW - Functionally graded materials
KW - Hot isostatic pressing
KW - Powder metallurgy
KW - Wear resistant materials
UR - http://www.scopus.com/inward/record.url?scp=84959064872&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84959064872
T3 - Euro PM 2014 Congress and Exhibition, Proceedings
BT - Euro PM 2014 Congress and Exhibition, Proceedings
T2 - Euro PM 2014 International Conference and Exhibition
Y2 - 21 September 2014 through 24 September 2014
ER -