Details
| Original language | English |
|---|---|
| Title of host publication | Lecture Notes in Production Engineering |
| Publisher | Springer Nature |
| Pages | 13-23 |
| Number of pages | 11 |
| ISBN (electronic) | 978-3-031-18318-8 |
| ISBN (print) | 978-3-031-18317-1 |
| Publication status | Published - 2 Feb 2023 |
Publication series
| Name | Lecture Notes in Production Engineering |
|---|---|
| Volume | Part F1163 |
| ISSN (Print) | 2194-0525 |
| ISSN (electronic) | 2194-0533 |
Abstract
Many metallic powder materials can be processed fast and cost-effectively using the conventional powder metallurgy method. For this purpose, the metal powder is pressed into a compact and then sintered in a furnace to produce a finished component. Gamma titanium aluminides are an exception to this. Due to their brittleness, they cannot be compacted in classical die pressing. A promising approach is the addition of elemental significantly more ductile alloy powder. The aim of this work is to investigate the influence of the admixture of elemental powder on the compressibility and the properties after the sintering process. Within the scope of the work, commercially available pre-alloyed TiAl48-2-2 (GE48) powder, which is applied e.g. for turbine blades in aircraft, is used. The powder alloy is mixed with elemental titanium, aluminium, chromium and niobium powder according to its composition and then pressed to a compact. Selected samples are sintered and metallographically characterised. By varying the pressing load and the proportion of elemental powder, as well as the proportion of elemental powder mixtures, the influence on the compaction behaviour and the mechanical properties is investigated. It is possible to produce compacts with sufficient mechanical properties by adding specific proportions of different elemental powders depending on the element and the compaction parameters. The results show a significant dependence of the relative density and tensile splitting strength on the proportion and type of elemental powder added.
Keywords
- Mechanical properties, Powder compacting, TiAl powder
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Economics, Econometrics and Finance(all)
- Economics, Econometrics and Finance (miscellaneous)
- Engineering(all)
- Safety, Risk, Reliability and Quality
Cite this
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Lecture Notes in Production Engineering. Springer Nature, 2023. p. 13-23 (Lecture Notes in Production Engineering; Vol. Part F1163).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Study on the Compressibility of TiAl48-2-2 Powder Mixed with Elemental Powders
AU - Heymann, A.
AU - Peddinghaus, J.
AU - Brunotte, K.
AU - Behrens, B. A.
N1 - Funding Information: Acknowledgements. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 394563137—SFB 1368.
PY - 2023/2/2
Y1 - 2023/2/2
N2 - Many metallic powder materials can be processed fast and cost-effectively using the conventional powder metallurgy method. For this purpose, the metal powder is pressed into a compact and then sintered in a furnace to produce a finished component. Gamma titanium aluminides are an exception to this. Due to their brittleness, they cannot be compacted in classical die pressing. A promising approach is the addition of elemental significantly more ductile alloy powder. The aim of this work is to investigate the influence of the admixture of elemental powder on the compressibility and the properties after the sintering process. Within the scope of the work, commercially available pre-alloyed TiAl48-2-2 (GE48) powder, which is applied e.g. for turbine blades in aircraft, is used. The powder alloy is mixed with elemental titanium, aluminium, chromium and niobium powder according to its composition and then pressed to a compact. Selected samples are sintered and metallographically characterised. By varying the pressing load and the proportion of elemental powder, as well as the proportion of elemental powder mixtures, the influence on the compaction behaviour and the mechanical properties is investigated. It is possible to produce compacts with sufficient mechanical properties by adding specific proportions of different elemental powders depending on the element and the compaction parameters. The results show a significant dependence of the relative density and tensile splitting strength on the proportion and type of elemental powder added.
AB - Many metallic powder materials can be processed fast and cost-effectively using the conventional powder metallurgy method. For this purpose, the metal powder is pressed into a compact and then sintered in a furnace to produce a finished component. Gamma titanium aluminides are an exception to this. Due to their brittleness, they cannot be compacted in classical die pressing. A promising approach is the addition of elemental significantly more ductile alloy powder. The aim of this work is to investigate the influence of the admixture of elemental powder on the compressibility and the properties after the sintering process. Within the scope of the work, commercially available pre-alloyed TiAl48-2-2 (GE48) powder, which is applied e.g. for turbine blades in aircraft, is used. The powder alloy is mixed with elemental titanium, aluminium, chromium and niobium powder according to its composition and then pressed to a compact. Selected samples are sintered and metallographically characterised. By varying the pressing load and the proportion of elemental powder, as well as the proportion of elemental powder mixtures, the influence on the compaction behaviour and the mechanical properties is investigated. It is possible to produce compacts with sufficient mechanical properties by adding specific proportions of different elemental powders depending on the element and the compaction parameters. The results show a significant dependence of the relative density and tensile splitting strength on the proportion and type of elemental powder added.
KW - Mechanical properties
KW - Powder compacting
KW - TiAl powder
UR - http://www.scopus.com/inward/record.url?scp=85166635762&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-18318-8_2
DO - 10.1007/978-3-031-18318-8_2
M3 - Contribution to book/anthology
AN - SCOPUS:85166635762
SN - 978-3-031-18317-1
T3 - Lecture Notes in Production Engineering
SP - 13
EP - 23
BT - Lecture Notes in Production Engineering
PB - Springer Nature
ER -