Abstract
For laser welding and for laser hardening the resulting mechanical properties of the product can be expressed by the shape and metallurgy of the processed cross section. Both 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 the following, a brief survey on the physical mechanisms responsible for the metallurgy [1, 2] at the macro- and micro-scale will be 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 are presented that enable quantitative calculation and description of the phenomena.
The notation employed in this chapter is to be found in Table 7.1.
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Kaplan, A. (2009). Metallurgy of Welding and Hardening. In: Dowden, J. (eds) The Theory of Laser Materials Processing. Springer Series in Materials Science, vol 119. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9340-1_7
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DOI: https://doi.org/10.1007/978-1-4020-9340-1_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-9339-5
Online ISBN: 978-1-4020-9340-1
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