Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging
The ability to fabricate complex graded structures would be a significant step towards the manufacturing of material systems with properties tailored to individual applications. While powder metallurgy has had some success in this regard, it requires that the semi-finished products be exactly simila...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-04-01
|
Series: | Metals |
Subjects: | |
Online Access: | https://www.mdpi.com/2075-4701/10/4/543 |
id |
doaj-3bd256b340904c3883f330006f04d2f6 |
---|---|
record_format |
Article |
spelling |
doaj-3bd256b340904c3883f330006f04d2f62020-11-25T02:28:22ZengMDPI AGMetals2075-47012020-04-011054354310.3390/met10040543Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder ForgingMarkus Kirschner0Stefan Martin1Sergey Guk2Ulrich Prahl3Rudolf Kawalla4Institute of Metal Forming, Technische Universität Bergakademie Freiberg, 09599 Freiberg, GermanyInstitute of Materials Science, Technische Universität Bergakademie Freiberg, 09599 Freiberg, GermanyInstitute of Metal Forming, Technische Universität Bergakademie Freiberg, 09599 Freiberg, GermanyInstitute of Metal Forming, Technische Universität Bergakademie Freiberg, 09599 Freiberg, GermanyInstitute of Metal Forming, Technische Universität Bergakademie Freiberg, 09599 Freiberg, GermanyThe ability to fabricate complex graded structures would be a significant step towards the manufacturing of material systems with properties tailored to individual applications. While powder metallurgy has had some success in this regard, it requires that the semi-finished products be exactly similar to the final component. However, it is significantly cheaper to produce simple, semi-finished products and then join them to form complex components with the desired graded structure through powder forging and simultaneous compaction. It is also essential that the graded structure of the semi-finished products is retained during the forming process. In this study, pre-sintered cylindrical semi-finished products consisting of identical homogeneous layers as well as graded components consisting of non-identical homogeneous layers were joined using powder forging at 1100 °C. The microstructures and densities as well as the mechanical properties of the final components were investigated. It was observed that, upon compaction, the components formed solid structures, in which the reinforcing ZrO<sub>2</sub> particles were completely integrated within the transformation-induced plasticity steel matrix. Finally, it was confirmed that the graded structure of the semi-finished products was retained in the final components.https://www.mdpi.com/2075-4701/10/4/543powder forgingTRIP-matrix compositeforminggraded structurehomogeneous structure |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Markus Kirschner Stefan Martin Sergey Guk Ulrich Prahl Rudolf Kawalla |
spellingShingle |
Markus Kirschner Stefan Martin Sergey Guk Ulrich Prahl Rudolf Kawalla Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging Metals powder forging TRIP-matrix composite forming graded structure homogeneous structure |
author_facet |
Markus Kirschner Stefan Martin Sergey Guk Ulrich Prahl Rudolf Kawalla |
author_sort |
Markus Kirschner |
title |
Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging |
title_short |
Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging |
title_full |
Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging |
title_fullStr |
Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging |
title_full_unstemmed |
Forming Complex Graded and Homogeneous Components by Joining Simple Presintered Parts of TRIP-Matrix Composite through Powder Forging |
title_sort |
forming complex graded and homogeneous components by joining simple presintered parts of trip-matrix composite through powder forging |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2020-04-01 |
description |
The ability to fabricate complex graded structures would be a significant step towards the manufacturing of material systems with properties tailored to individual applications. While powder metallurgy has had some success in this regard, it requires that the semi-finished products be exactly similar to the final component. However, it is significantly cheaper to produce simple, semi-finished products and then join them to form complex components with the desired graded structure through powder forging and simultaneous compaction. It is also essential that the graded structure of the semi-finished products is retained during the forming process. In this study, pre-sintered cylindrical semi-finished products consisting of identical homogeneous layers as well as graded components consisting of non-identical homogeneous layers were joined using powder forging at 1100 °C. The microstructures and densities as well as the mechanical properties of the final components were investigated. It was observed that, upon compaction, the components formed solid structures, in which the reinforcing ZrO<sub>2</sub> particles were completely integrated within the transformation-induced plasticity steel matrix. Finally, it was confirmed that the graded structure of the semi-finished products was retained in the final components. |
topic |
powder forging TRIP-matrix composite forming graded structure homogeneous structure |
url |
https://www.mdpi.com/2075-4701/10/4/543 |
work_keys_str_mv |
AT markuskirschner formingcomplexgradedandhomogeneouscomponentsbyjoiningsimplepresinteredpartsoftripmatrixcompositethroughpowderforging AT stefanmartin formingcomplexgradedandhomogeneouscomponentsbyjoiningsimplepresinteredpartsoftripmatrixcompositethroughpowderforging AT sergeyguk formingcomplexgradedandhomogeneouscomponentsbyjoiningsimplepresinteredpartsoftripmatrixcompositethroughpowderforging AT ulrichprahl formingcomplexgradedandhomogeneouscomponentsbyjoiningsimplepresinteredpartsoftripmatrixcompositethroughpowderforging AT rudolfkawalla formingcomplexgradedandhomogeneouscomponentsbyjoiningsimplepresinteredpartsoftripmatrixcompositethroughpowderforging |
_version_ |
1724838578124488704 |