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Metals, Volume 11, Issue 11

November 2021 - 218 articles

Cover Story: The fatigue lives of IN718, produced by additive manufacturing (AM) as well as conventional wrought material, were successfully determined at 873 K up to 109 cycles. Therefore, ultrasonic fatigue tests were performed under fully revered loading. The AM material was investigated in its as-built condition, whereas conventional material received the typical heat treatment for IN718. Both microstructures showed fundamental differences concerning grain sizes, defect distribution, and texture. The as-built microstructure led to a significant decrease in fatigue strength compared to the heat-treated conventional IN718. The EBM material showed crystallographic crack initiation along the activated slip systems initiated by internal defects. View this paper
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Articles (218)

  • Article
  • Open Access
14 Citations
3,344 Views
11 Pages

22 November 2021

Resistance spot welding is an established joining process for the production of safety-relevant components in the automotive industry. Therefore, consecutive process monitoring is essential to meet the high quality requirements. Artificial neural net...

  • Review
  • Open Access
13 Citations
3,985 Views
15 Pages

22 November 2021

Metallic materials produce various structural defects in the radiation environment, resulting in serious degradation of material properties. An important way to improve the radiation-resistant ability of materials is to give the microstructure of mat...

  • Article
  • Open Access
30 Citations
3,148 Views
17 Pages

Corrosion Resistance of CoCrFeNiMn High Entropy Alloy Coating Prepared through Plasma Transfer Arc Claddings

  • Pei-Hu Gao,
  • Rui-Tao Fu,
  • Bai-Yang Chen,
  • Sheng-Cong Zeng,
  • Bo Zhang,
  • Zhong Yang,
  • Yong-Chun Guo,
  • Min-Xian Liang,
  • Jian-Ping Li and
  • Yong-Qing Lu
  • + 2 authors

22 November 2021

High entropy alloy attracts great attention for its high thermal stability and corrosion resistance. A CoCrFeNiMn high-entropy alloy coating was deposited on grey cast iron through plasma transfer arc cladding. It formed fine acicular martensite near...

  • Article
  • Open Access
7 Citations
4,357 Views
16 Pages

Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding

  • Sabin Mihai,
  • Diana Chioibasu,
  • Muhammad Arif Mahmood,
  • Liviu Duta,
  • Marc Leparoux and
  • Andrei C. Popescu

22 November 2021

In this study a continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser has been used for welding of AlMg3 casted alloy. A high-speed imaging camera has been employed to record hot vapor plume features during the process. The pur...

  • Article
  • Open Access
9 Citations
2,636 Views
12 Pages

The Effect of Current Supply Duration during Stepwise Electrical Sintering of Silver Nanoparticles

  • Iksang Lee,
  • Arif Hussain,
  • Hee-Lak Lee,
  • Yoon-Jae Moon,
  • Jun-Young Hwang and
  • Seung-Jae Moon

22 November 2021

We studied the effect of current supply duration at final-step currents during the stepwise electrical sintering of silver (Ag) nanoparticles (NPs). Ag NPs ink was inkjet-printed onto Eagle-XG glass substrates. Constant final-step currents of 0.4 and...

  • Article
  • Open Access
19 Citations
4,113 Views
15 Pages

22 November 2021

It has been proven that through targeted quenching and partitioning (Q & P), medium manganese steels can exhibit excellent mechanical properties combining very high strength and ductility. In order to apply the potential of these steels in indust...

  • Article
  • Open Access
6 Citations
2,720 Views
18 Pages

22 November 2021

Improving the mechanical performance of low-carbon offshore steel is of great significance in shipbuilding applications. In this paper, a new Cu-Cr microalloyed offshore structural steel (FH36) was developed based on EH36. The microstructure, mechani...

  • Feature Paper
  • Review
  • Open Access
82 Citations
5,547 Views
15 Pages

The Grain Boundary Wetting Phenomena in the Ti-Containing High-Entropy Alloys: A Review

  • Boris B. Straumal,
  • Anna Korneva,
  • Alexei Kuzmin,
  • Gabriel A. Lopez,
  • Eugen Rabkin,
  • Alexander B. Straumal,
  • Gregory Gerstein and
  • Alena S. Gornakova

22 November 2021

In this review, the phenomenon of grain boundary (GB) wetting by melt is analyzed for multicomponent alloys without principal components (also called high-entropy alloys or HEAs) containing titanium. GB wetting can be complete or partial. In the form...

  • Article
  • Open Access
12 Citations
2,614 Views
12 Pages

Deformation Behavior of Wrought and EBAM Ti-6Al-4V under Scratch Testing

  • Artur Shugurov,
  • Alexey Panin,
  • Marina Kazachenok,
  • Lyudmila Kazantseva,
  • Sergey Martynov,
  • Alexander Bakulin and
  • Svetlana Kulkova

22 November 2021

The microstructure, mechanical properties, and deformation behavior of wrought and electron beam additive manufactured (EBAM) Ti-6Al-4V samples under scratching were studied. As-received wrought Ti-6Al-4V was subjected to thermal treatment to obtain...

  • Article
  • Open Access
9 Citations
2,581 Views
10 Pages

Micromechanisms of Deformation and Fracture in Porous L-PBF 316L Stainless Steel at Different Strain Rates

  • Nataliya Kazantseva,
  • Pavel Krakhmalev,
  • Mikael Åsberg,
  • Yulia Koemets,
  • Maxim Karabanalov,
  • Denis Davydov,
  • Igor Ezhov and
  • Olga Koemets

21 November 2021

The process of an unstable plastic flow associated with the strain rate sensitivity of mechanical properties was studied in porous 316L austenitic steel samples manufactured by laser powder bed fusion (L-PBF). Different micromechanisms of deformation...

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Metals - ISSN 2075-4701