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Metallurgy and Imperfections of Welding and Hardening
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
2017 (English)In: The Theory of Laser Materials Processing: Heat and Mass Transfer in Modern Technology / [ed] John Dowden, Wolfgang Schulz, Springer International Publishing , 2017, 241-261 p.Chapter in book (Refereed)
Abstract [en]

For laser hardening the metallurgy in the generated heat affected zone is critical. For laser welding, the resulting mechanical properties of the product depend in addition on the shape and on the imperfections of the processed cross section. Metallurgy, shape and imperfections are determined by heat conduction, in particular by resolidification, by diffusion and by the crystallographic material behaviour, governed by the local thermal cycle of the material. In this chapter, a brief survey of the physical mechanisms responsible for the metallurgy and for imperfections at the macro- and micro-scale are given, mainly referring to ferritic low alloy steel as the most relevant material. Many aspects are relevant to both welding and hardening, while some aspects are process-specific. For certain phenomena selected mathematical models will be presented that enable quantitative calculation and description of the phenomena.

Place, publisher, year, edition, pages
Springer International Publishing , 2017. 241-261 p.
Series
Springer Series in Materials Science, ISSN 0933-033X ; 119
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-64569DOI: 10.1007/978-3-319-56711-2_8Scopus ID: 2-s2.0-85021055783ISBN: 978-3-319-56710-5 (print)ISBN: 978-3-319-56711-2 (electronic)OAI: oai:DiVA.org:ltu-64569DiVA: diva2:1115809
Available from: 2017-06-27 Created: 2017-06-27 Last updated: 2017-07-06Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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