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Alloys, Volume 2, Issue 3

September 2023 - 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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Articles (7)

  • Article
  • Open Access
15 Citations
7,177 Views
14 Pages

Mechanical Properties of Al–Mg–Si Alloys (6xxx Series): A DFT-Based Study

  • Kipkorir Kirui Pius,
  • Nicholas O. Ongwen,
  • Maxwell Mageto,
  • Victor Odari and
  • Francis Magiri Gaitho

13 September 2023

Al–Mg–Si alloys are used in aircraft, train, and car manufacturing industries due to their advantages, which include non-corrosivity, low density, relatively low cost, high thermal and electrical conductivity, formability, and weldability...

  • Review
  • Open Access
4 Citations
6,284 Views
29 Pages

30 August 2023

The paper is a personal perspective on the design of metallic ultra-high temperature materials (UHTMs). Specifically, the alloy design “landscape” of metallic UHTMs was considered from the viewpoint of the alloy design methodology NICE. T...

  • Feature Paper
  • Article
  • Open Access
5 Citations
2,926 Views
16 Pages

25 August 2023

Case-hardening steels are gaining increasing interest in the field of laser powder bed fusion (PBF-LB/M) due to their excellent weldability. In combination with post-process carburization heat treatment, the surface properties can be improved to gene...

  • Article
  • Open Access
3 Citations
3,532 Views
11 Pages

Production of Zirconium-Niobium Alloys for Nuclear Reactors Fuel Rods via SHS Process

  • Anatoly Mukhachev,
  • Dmytro Yelatontsev and
  • Olena Kharytonova

2 August 2023

This article presents the results of studies of the self-propagating high-temperature synthesis (SHS) for obtaining zirconium alloys with niobium by the method of calcium-thermal reduction of nuclear-grade zirconium tetrafluoride in the presence of n...

  • Article
  • Open Access
6 Citations
2,566 Views
9 Pages

11 July 2023

A systematic study of the phase composition of quenched binary titanium alloys with d-metals of groups 5–11 from periods four to six was carried out using the methods of X-ray diffraction analysis. It was found that the formation of the orthorh...

  • Article
  • Open Access
1 Citations
1,945 Views
8 Pages

Spectral Visualization of Alloy Reactions during Laser Melting

  • Joerg Volpp,
  • Himani Naesstroem,
  • Lisanne Wockenfuss,
  • Malte Schmidt and
  • Knut Partes

4 July 2023

Laser materials processing includes rapid heating to possibly high temperatures and rapid cooling of the illuminated materials. The material reactions can show significant deviations from equilibrium processing. During processing of complex materials...

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Alloys - ISSN 2674-063X