Microstructure and Mechanical Properties of Metallic Materials by Powder Metallurgy

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Powder Metallurgy".

Deadline for manuscript submissions: 15 October 2025 | Viewed by 287

Special Issue Editor


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Guest Editor
CRISMAT Laboratory, UMR 6508, Normandy University, 6 Boulevard Marechal Juin, CEDEX 4, 14050 Caen, France
Interests: plasticity mechanisms; plasticity modelisation; dislocations and twinning; size effects in metals; corrosion; magnetic and electrical properties; spark plasma sintering; additive manufacturing

Special Issue Information

Dear Colleagues,

The development of sintered metallic alloys is now one of the main methods used to develop structural parts, in contrast to traditional methods of casting or plastic deformation processes. Recent rapid sintering methods (SPS and microwave sintering) on the one hand and the emergence of additive manufacturing by powder bed melting on the other hand have led to original microstructure designs. The mechanical properties of the alloys resulting from this process can then be profoundly affected. In this Special Issue, we propose a review of the scientific advances in this field, covering all the areas concerned, particularly looking at the following (non-exhaustive list):

  • New microstructures from sintering and additive manufacturing;
  • Unconventional sintering processes: SPS, microwave, etc.;
  • Mechanical properties: fatigue, creep, plasticity mechanisms, etc.;
  • Temperature effect on microstructure stability;
  • Creep and diffusion mechanisms;
  • Damage, fracture, environmental effects: oxidation, electrochemical corrosion, etc.

Prof. Dr. Eric Hug
Guest Editor

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Keywords

  • powder metallurgy
  • sintering
  • additive manufacturing
  • microstructures
  • mechanical properties
  • temperature effects
  • degradation and stability
  • corrosion/oxidation

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Published Papers (1 paper)

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Review

25 pages, 4373 KiB  
Review
Numerical Simulation and Hot Isostatic Pressing Technology of Powder Titanium Alloys: A Review
by Jianglei Cui, Xiaolong Lv and Hanguang Fu
Metals 2025, 15(5), 542; https://doi.org/10.3390/met15050542 - 14 May 2025
Viewed by 167
Abstract
Titanium and its alloys have been widely used in high-end fields such as aerospace and biomedical engineering due to their excellent corrosion resistance and comprehensive mechanical properties. However, traditional titanium alloy processing technologies suffer from low material utilization and numerous defects. The emergence [...] Read more.
Titanium and its alloys have been widely used in high-end fields such as aerospace and biomedical engineering due to their excellent corrosion resistance and comprehensive mechanical properties. However, traditional titanium alloy processing technologies suffer from low material utilization and numerous defects. The emergence of near-net shape forming technology for powder titanium alloys via hot isostatic pressing (HIP) has broken through the limitations of traditional casting and forging, significantly improving the mechanical properties of titanium alloy materials, increasing material utilization, and shortening the production cycle of products. The application of numerical simulation technology has provided a scientific basis for the design of capsules and cores of complex high-performance components and has offered theoretical support for the densification of powders under thermomechanical coupling, becoming an essential foundation for achieving controllable shape and properties of components. This paper introduces the characteristics and process flow of HIP technology for powder titanium alloys, summarizes the current development status and research achievements of this technology both domestically and internationally, elaborates on the research progress of numerical simulation of HIP, and concludes with an analysis of the existing technological challenges and possible solutions, as well as an outlook on future development directions. Full article
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