Thixoforging of particle-reinforced steel materials

authored by: Bernd Arno Behrens, Conrad Frischkorn
Abstract: The paper deals with a new process chain consisting of powder metallurgy (PM) and a subsequent thixoforging process. This innovative production process can increase the complexity of PM components and enable a high formability of brittle materials such as metal matrix composites (MMC). Compared to conventional materials MMCs feature improved mechanical properties and thus a high potential for various applications. In this investigation cylindrical raw parts, consisting of a steel powder and different proportions of titanium carbide particles, were produced by uniaxial powder pressing and sintering. Subsequently, the samples were heated up to the thixotropic (semi-solid) temperature range and valve parts were thixoforged by a backwards rod extrusion process. Finally, the particle-reinforced steel parts were characterised by metallographic analysis and hardness measurements.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Article
Journal: Production Engineering
Volume: 8
Pages: 335-343
No. of pages: 9
ISSN: 0944-6524
Publication date: 25.03.2014
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Mechanical Engineering, Industrial and Manufacturing Engineering
Electronic version(s): https://doi.org/10.1007/s11740-014-0533-3 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{95d22eb22d1f43e1b73ef589dd2fca22,
title = "Thixoforging of particle-reinforced steel materials",
abstract = "The paper deals with a new process chain consisting of powder metallurgy (PM) and a subsequent thixoforging process. This innovative production process can increase the complexity of PM components and enable a high formability of brittle materials such as metal matrix composites (MMC). Compared to conventional materials MMCs feature improved mechanical properties and thus a high potential for various applications. In this investigation cylindrical raw parts, consisting of a steel powder and different proportions of titanium carbide particles, were produced by uniaxial powder pressing and sintering. Subsequently, the samples were heated up to the thixotropic (semi-solid) temperature range and valve parts were thixoforged by a backwards rod extrusion process. Finally, the particle-reinforced steel parts were characterised by metallographic analysis and hardness measurements.",
keywords = "Metal matrix composite (MMC), Particle-reinforced steel materials, Powder metallurgy (PM), Thixoforging",
author = "Behrens, {Bernd Arno} and Conrad Frischkorn",
note = "Funding information: Acknowledgments The presented results are based on the frame-work of the research project {\textquoteleft}{\textquoteleft}Production of complex geometries of particle reinforced steel materials by powder compaction followed by thixoforging{\textquoteright}{\textquoteright}. The authors would like to thank the German Research Foundation (DFG) for the financial support and Quebec Metal Powders Limited (Rio Tinto) for cooperating and providing the steel powder.",
year = "2014",
month = mar,
day = "25",
doi = "10.1007/s11740-014-0533-3",
language = "English",
volume = "8",
pages = "335--343",
journal = "Production Engineering",
issn = "0944-6524",
publisher = "Springer Verlag",
number = "3",
}