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Alloys, Volume 2, Issue 3

2023 September - 7 articles

Cover Story: Academic research in the field of laser powder bed fusion of metals (PBF-LB/M) is mainly focused on the manufacturing of small-scale specimens. However, manufacturing small parts with edge lengths of, e.g., 10 × 10 × 10 or even 5 × 5 × 5 mm3 merely represents the demands of industrial applications. During the build-up of larger parts, heat accumulation due to the layer-wise energy input plays a significant role and affects the final part’s properties. In low-alloyed steels, this heat accumulation negatively affects the relative part density and the peak material hardness in large parts. Consequently, the as-built part properties are no longer homogeneous as previously identified for smaller specimens. This work presents investigations into strategies that can be used for homogenizing the material properties through the introduction of inter-layer times or lowered energy inputs. View this paper
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Alloys - ISSN 2674-063X
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