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Metals, Volume 14, Issue 12

December 2024 - 157 articles

Cover Story: This study provides a novel perspective on the ultrasonic degassing of the A356 alloy by elucidating the distinct roles of stable and transient cavitation. In the initial stages of degassing, the number of bubbles available to rapidly and effectively remove dissolved gases from the melts is critical. Transient cavitation promotes bubble collapses, increasing the generation of new tiny bubbles, which facilitates hydrogen diffusion and gas release. Consequently, this study identifies transient cavitation as the dominant factor in the initial degassing stage and clearly demonstrates that optimizing frequency to enhance transient cavitation is an effective approach to improving degassing efficiency. View this paper
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Articles (157)

  • Article
  • Open Access
945 Views
16 Pages

23 December 2024

The welding of the bottom-locking structure in a detector receptacle plays an essential role in ensuring the safety of nuclear equipment. A pulsed TIG–laser hybrid welding method is proposed to address the problem of welding pores in locking st...

  • Article
  • Open Access
2 Citations
1,843 Views
18 Pages

Correlation Between Morphology and Crystal Structure of Electrolytically Produced Zinc Dendritic Particles

  • Nebojša D. Nikolić,
  • Jelena D. Lović,
  • Vesna M. Maksimović,
  • Nikola S. Vuković,
  • Nenad L. Ignjatović,
  • Predrag M. Živković and
  • Sanja I. Stevanović

23 December 2024

The correlation between the morphology and crystal structure of zinc dendritic particles produced by electrolysis from the alkaline electrolyte has been established. Morphology and crystal structure of Zn particles electrodeposited by the potentiosta...

  • Article
  • Open Access
1 Citations
1,003 Views
14 Pages

Study on Reduction Mechanism of Iron Oxide by Industrial Lignin

  • Dongwen Xiang,
  • Qiang Zhang,
  • Guoqing Wu,
  • Yajie Wang,
  • Dong Li,
  • Qinghua Zhang and
  • Huaxin Hu

23 December 2024

To effectively utilize industrial lignin, a large amount of waste produced by the pulp and paper industry, this paper primarily explores its potential as a substitute for coal-based reducing agents in the reduction of iron oxides. The weight change,...

  • Article
  • Open Access
1 Citations
2,219 Views
17 Pages

The CaO Enhanced Defluorination and Air-Jet Separation of Cathode-Active Material Coating for Direct Recycling Li-Ion Battery Electrodes

  • Piotr Siwak,
  • Volf Leshchynsky,
  • Emil Strumban,
  • Mircea Pantea,
  • Dariusz Garbiec and
  • Roman Maev

23 December 2024

With the rapid growth of the lithium-ion battery (LIBs) market, recycling and re-using end-of-life LIBs to reclaim the critical Li, Co, Ni, and Mn has become an urgent task. Presently, high temperature, strong acid, and alkali conditions are required...

  • Article
  • Open Access
1 Citations
3,195 Views
20 Pages

Evaluation of the Preg-Robbing Effect in Gold Recovery Using the Carbon-in-Leach Technique: A Comparative Study of Three Reactor Types

  • Carlos Ocampo-López,
  • Leidy Rendón-Castrillón,
  • Margarita Ramírez-Carmona and
  • Federico González-López

22 December 2024

This study evaluates the preg-robbing effect on gold recovery through a carbon-in-leach process, comparing three reactor types: glass, stainless steel, and stainless steel coated with ceramic resin. Protonated activated carbon (PAcC) and anthracite c...

  • Review
  • Open Access
3 Citations
5,076 Views
36 Pages

22 December 2024

Additive manufacturing (AM) is a layerwise production process that creates three-dimensional objects according to a digital model. This technology has demonstrated to be a promising alternative to conventional manufacturing methods for various indust...

  • Article
  • Open Access
2 Citations
1,636 Views
18 Pages

21 December 2024

The assessment of fatigue cracks is an elementary part of the design process of lightweight structures subject to operational loads. Although angled sheets are standard components in forming technology, fatigue crack growth in geometries like C- and...

  • Article
  • Open Access
3 Citations
1,862 Views
15 Pages

20 December 2024

This study presents a comparative analysis of the corrosion and mechanical properties of an Al-SiC composite and an AA 2024 aluminum alloy, focusing on their suitability for aeronautical applications. The Al-SiC composite was fabricated using advance...

  • Article
  • Open Access
3 Citations
916 Views
10 Pages

Evolution of Stress Rupture Property for K439B Superalloy During Long-Term Thermal Exposure at 800 °C

  • Yidong Wu,
  • Xinghai Qu,
  • Lei Gao,
  • Chaoqian Song,
  • Zhao Dong,
  • Jingyang Chen and
  • Xidong Hui

20 December 2024

The K439B superalloy is widely utilized in aeroengine components due to its superior weldability and mechanical performance. Given that the hot-end components of aeroengines typically operate at high temperatures for extended periods, even up to 10,0...

  • Article
  • Open Access
1 Citations
1,179 Views
18 Pages

20 December 2024

The evolution of the crystallographic texture after severe plastic deformation (SPD) of the aluminum alloy AA7075, commonly used in the aeronautical and automotive industries, depends on the parameters of the applied deformation process. In this pape...

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Metals - ISSN 2075-4701