Measurement and calculation of the viscosity of metals - A review of the current status and developing trends

Publikation: Beiträge in ZeitschriftenÜbersichtsarbeitenForschung

Authors

  • J. Cheng
  • J. Gröbner
  • N. Hort
  • K. U. Kainer
  • R. Schmid-Fetzer

Viscosity is an important rheological property of metals in casting because it controls the rate of transport of liquid metals, which may lead to casting defects such as hot tearing and porosity. The measurement methods and numerical models of the viscosity of liquid and semi-solid state metals that have been published to date are reviewed in this paper. Most experimental measurements have been performed with rotational and oscillatory viscometers, which offer advantages at low viscosities in particular. Besides these two traditional methods for measuring viscosities, a couple of studies also introduced the technique of isothermal compression for alloys in the semi-solid state, and even an optical basicity method for the viscosity of slags. As to numerical models, most published results show that the viscosity of liquid and semi-solid state metals can be described by the Arrhenius, Andrade, Kaptay or Budai-Bemk-Kaptay equations. In addition, there are some alternative models, such as the power model and the isothermal stress-strain model.

OriginalspracheEnglisch
Aufsatznummer062001
Zeitschrift Measurement Science and Technology
Jahrgang25
Ausgabenummer6
ISSN0957-0233
DOIs
PublikationsstatusErschienen - 06.2014
Extern publiziertJa

DOI

Zuletzt angesehen

Aktivitäten

  1. Career Activities in Retirement: Theory of Planned Behavior and Social Cognitive Career Theory
  2. “Take Things Easy First” or “Get Straight to The Point”? The Order of Issue Packages in Negotiation and Its Effect on Dyadic Economic Outcomes.
  3. Linking EFL Tasks to the World Outside: Promoting Community-Based Learning and Learner Agency through Blended-Learning Projects
  4. Präsidium (Organisation)
  5. What´s the Evidence of Health on Education?
  6. Exploring Sustainability in Virtual Space
  7. Symposium: Unstable Monuments: Remnants from Times of Ideology
  8. Strengthening Competencies in Artificial Intelligence
  9. Going Green 2015 - Exploring Sustainability in Virtual Space
  10. International Standard Organization (ISO) (Externe Organisation)
  11. 2. Gottfried Benn-Symposion an der Universität Siegen - 2013
  12. 15th Internation Conference on Renewable Resources and Biorefineries
  13. Intensive Course in Academic Writing 2010
  14. Medienimpulse (Zeitschrift)
  15. Workshop: Windkanäle - 2019
  16. 4. Workshop des GAMM Fachausschusses
  17. Clouds and Balloons
  18. Colloquium Presentation: "How Civilization Turned into Human Empowerment"
  19. JURE 2024 (Veranstaltung)
  20. Institute of English Studies (Organisation)
  21. Workshop Karrieresystem Hochschule 2012
  22. Swinging up: Speech as a bodily practice
  23. Conference presentation: Integrated Reporting: Current state of empirical research, limitations and future research implications
  24. “Oh ok. (.) Yeah, do you have like Christmas exams or anything?” Constructing small talk in learner - native speaker voice-based telecollaboration
  25. Simulation in der Produktion und Logistik - ASIM 2019
  26. OWL University of Applied Sciences and Arts, Lemgo, digital (02.07.2020); “Carbon perfor-mance and disclosure: Governance-related determinants and their firms’ financial consequences”
  27. Provenance of the Clast Population of Some Fra Mauro Breccias