Results 51 to 60 of about 2,514 (216)

Recent Improvements in Size Effects Correlations for DBTT and Upper Shelf Energy of Ferritic Steels [PDF]

open access: yes, 1993
Currently available correlations for the effects of specimen size on the upper shelf energy (USE) were developed for relatively ductile steels and do not serve as well when the steels become embrittled. Size effects correlations were developed recently for the impact properties of less ductile HT9 to be applied to other initially more ductile steels as
Kumar, A. S.   +3 more
openaire   +1 more source

Partitioning and Coarsening Dynamics of Precipitate‐Strengthened Cr‐Si Alloys: The Role of Ge, Pt, and Mo

open access: yesAdvanced Engineering Materials, Volume 27, Issue 9, May 2025.
The microstructure of Cr‐rich Cr‐Si‐alloys is maintained by alloying with Ge, Pt, and Mo. The effects of these elements on A15‐phase fraction, partitioning, microstructural stability, grain size, and hardness are combinable. Molybdenum is found to be the most promising alloying element for microstructural stability during high‐temperature exposure.
Anke Silvia Ulrich   +6 more
wiley   +1 more source

Charpy impact properties of EUROFER97-3 after neutron irradiation at 330 °C and 540 °C to damage doses of 21–23 dpa

open access: yesNuclear Materials and Energy
The reduced activation ferritic-martensitic (RAFM) EUROFER97-3 steel of two heat treatments (EUROFER97-3_1100/700 and EUROFER97-3_980/780) after irradiation in the BOR-60 fast reactor at temperatures of 330 °C and 540 °C, with damage doses ranging from ...
Vladimir Chakin   +7 more
doaj   +1 more source

Transition Metal Dichalcogenide‐Based Composites in Powder Bed Additive Manufacturing for Electrochemical Applications—A Review

open access: yesAdvanced Materials Technologies, Volume 10, Issue 9, May 6, 2025.
The robust electrochemical sustainability of additively manufactured high‐performance nanocomposites is substantially dependent on overcoming material selection, process optimization, operational scalability, and design flexibility challenges. Integrating transition metal dichalcogenides into metal‐matrix composites, laser powder bed fusion directly ...
Navid Alinejadian   +3 more
wiley   +1 more source

High Radiation Resistance in the Binary W‐Ta System Through Small V Additions: A New Paradigm for Nuclear Fusion Materials

open access: yesAdvanced Science, Volume 12, Issue 20, May 29, 2025.
Refractory high‐entropy alloys exhibit superior radiation tolerance, but face fabrication challenges due to complex compositions. It is demonstrated that reducing the number of alloying elements does not compromise radiation resistance in a novel W‐Ta‐V highly‐concentrated refractory alloy.
Matheus A. Tunes   +16 more
wiley   +1 more source

DBTT Reduction Enabled by SiO2-Bearing Flux in Submerged Arc Welds

open access: yesWelding Journal
The ductile-brittle transition temperature (DBTT) plays a critical role in determining the integrity of welded structures under common low-temperature service conditions. Fluxes are proven effective agents that significantly alter weld compositions and resulting microstructures.
CHAO HAN   +4 more
openaire   +1 more source

Heterostructured Metallic Structural Materials: Research Methods, Properties, and Future Perspectives

open access: yesAdvanced Functional Materials, Volume 34, Issue 51, December 16, 2024.
Heterostructured materials (HSMs) are becoming an emerging strategy for superior mechanical properties of metallic materials. Comprehensive evidence is necessary to substantiate their feasibility. This study provides an extensive review of experimental results from worldwide research groups across titanium, magnesium, aluminum, copper, steel, and ...
Xinxin Dong   +9 more
wiley   +1 more source

Orientation‐dependent mechanical responses in molybdenum‐rhenium alloys evaluated via micro‐pillars

open access: yesEngineering Reports, Volume 6, Issue 10, October 2024.
Orientation‐dependent compressive properties are found in Mo‐14Re and Mo‐42Re, but are not found in Mo and Mo‐5Re, which may be attributed to activated multi‐slip planes as increased Re. Solid solution effect of Re not only rely on orientations, but also on Re content. Softening effect occurs in both [100] and [110] Mo‐5Re.
Hailong Xu   +5 more
wiley   +1 more source

The Influence of Mo Content and Annealing on the Oxidation Behavior of Arc‐Melted Cr–xMo–8Si Alloys

open access: yesAdvanced Engineering Materials, Volume 26, Issue 17, September 2024.
Cr–xMo–8Si alloys (x = 10, 20, and 25 at%) show high potential for a new class of lightweight refractory alloys for high‐temperature applications. Especially worthwhile of further development is the Cr–25Mo–8Si alloy with extremely low mass gain and continuous SiO2 subscale formation, preventing internal oxidation.
Lisa Koliotassis   +2 more
wiley   +1 more source

Crack‐Free Tungsten Fabricated via Laser Powder Bed Fusion Additive Manufacturing

open access: yesAdvanced Functional Materials, Volume 34, Issue 12, March 18, 2024.
Additive manufacturing of tungsten (W) is challenging due to its high melting point, and brittleness from GB oxides. In this study, the processing of W through laser powder bed fusion is investigated. Parts are fabricated under argon (Ar) and nitrogen (N2).
Tejas Ramakrishnan   +6 more
wiley   +1 more source

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