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Abstract

The aim of this project was to investigate complex phenomena in the mould relating to the shrinkage, heat transfer, stress formation and their relationships to product quality. At Acenor I+D plant trials were carried out and, at the Institut für Allgemeine Metallurgie, fundamental laboratory research work was performed. Shrinkage experiments were performed on round and square ingots of iron-silicon alloys. The alloys were cast in iron moulds which were instrumented with temperature and displacement sensors. Obtained shrinkage-time curves show that the gamma-alpha transformation occurring on alloys with less than 1.84 % silicon content leads to a temporary expansion of the ingot. The expansion is mainly caused by the decrease of the density during the transformation. For calculations on the temperature and stress development on round ingots, material data on density, heat conductivity, Young's modulus and secondary creep were collected and brought in a form for computational use. Those on heat conductivity and Young's modulus only relate to lower temperatures.

Additional information

Authors: HEILEMAN J, Technische Universität Clausthal, Institut für Allgemeine Metallurgie, Clausthal-Zellerfeld (DE)
Bibliographic Reference: EUR 16065 EN (1995) 156 pp., FS, ECU 16.50
Availability: (2)
ISBN: ISBN 92-826-9686-3
Record Number: 199510024 / Last updated on: 1995-03-21
Category: PUBLICATION
Original language: en
Available languages: en