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A Theoretical / Empirical study of void closure in heavy plate hot rolling of tool steel
Örebro University, Department of Technology.
2009 (English)In: Metallurgy and New Materials Researches / Cercetari metalurgice, si de noi materiale, ISSN 1221-5503, Vol. 17, no 1, 9-26 p.Article in journal (Other academic) Published
Abstract [en]

By the introduction of TOOLOX®, SSAB in Oxelösund has turned into a new market segment, including heavier sizes and dramatically increased requirements on inner quality of the plate. To be able to determine the minimum reduction from slab to finished plate with acceptable inner quality, a study was made, to evaluate the minimum reduction for a given requirement of inner quality. By experimental rolling in the heavy plate mill in Oxelösund it has been proven that more than 40 % total reduction is necessary for total closure of voids under the geometrical deformation conditions in that mill. The total reduction is more important than the geometrical rolling conditions, and heavy pass reductions are favourable for void closure. The closure of internal defects can be improved by cooling the surface of the slabs.

Place, publisher, year, edition, pages
Bucarest: Societatea Româna de Metalurgie , 2009. Vol. 17, no 1, 9-26 p.
National Category
Engineering and Technology Metallurgy and Metallic Materials
Research subject
Industrial Measurement Technology
Identifiers
URN: urn:nbn:se:oru:diva-8417OAI: oai:DiVA.org:oru-8417DiVA: diva2:274689
Note

Cercetari Metalurgice si de noi Materiale currently does not have a website.(2017-03-08)

Available from: 2009-10-30 Created: 2009-10-30 Last updated: 2017-03-08Bibliographically approved

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