Einsatz des Umformdilatometers mit Zug-/Druckadapter zur Simulation von Warmumformprozessen

Translated title of the contribution: Application of a deformation dilatometer with a tension/deformation-adapter for the simulation of hot forming processes

Uwe Tertinek

Research output: ThesisDiploma Thesis

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Abstract

The design and development of new material concepts and their industrial production can both be cost-intensive and time-consuming. Furthermore, there is always the risk that the material properties do not satisfy the requirements. The simulation of industrial processes offers the opportunity to increase the efficiency in modern materials development. The use of a deformation dilatometer makes it possible to simulate certain time-temperature profiles and to analyse the effect of different deformation temperatures and/or deformation parameter on the emerging microstructure. Besides a standard deformation dilatometer the voestalpine steel Donawitz company also has the possibility to use a tension/deformation-adapter. The purpose of this diploma thesis is to illustrate and to judge the application of this tension/deformation-adapter. In the course of the diploma thesis a series of experiments with given time-temperature-deformation profiles was performed. Through the analysis of the collected dilatometer data, hardness measurements and metallographic inspection of the samples, the reproducibility of the experiments could be judged. The material under investigation was a Nb, Ti and V microalloyed C Mn steel with 0,08wt% C and 1,5wt% Mn. With the help of a proper time-temperature-tension curve (TTT curve) it was possible to make conclusions ex ante about the emerging microstructure, phases and phase fractions and the hardness of the material. Comparison of the measured data allowed to distinguish between the effects of the deformation device itself and the deformation parameter.
Translated title of the contributionApplication of a deformation dilatometer with a tension/deformation-adapter for the simulation of hot forming processes
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Clemens, Helmut, Supervisor (internal)
Award date16 Dec 2011
Publication statusPublished - 2011

Bibliographical note

embargoed until 15-11-2014

Keywords

  • deformation dilatometer
  • hot forming
  • flow curve
  • microalloyed steel

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