Results 71 to 80 of about 1,628,826 (288)

Transition of dominant deformation mode in bulk polycrystalline pure Mg by ultra-grain refinement down to sub-micrometer

open access: yes, 2020
Magnesium (Mg) and its alloys usually show relatively low strength and poor ductility at room temperature due to their anisotropic hexagonal close-packed (HCP) crystal structure that provides a limited number of independent slip systems.
Ruixiao Zheng   +5 more
semanticscholar   +1 more source

Grain refinement of stainless steel in ultrasound-assisted additive manufacturing

open access: yesAdditive Manufacturing, 2020
Metals and alloys fabricated by fusion-based additive manufacturing (AM), or 3D printing, undergo complex dynamics of melting and solidification, presenting challenges to the effective control of grain structure.
C. J. Todaro   +5 more
semanticscholar   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann   +4 more
wiley   +1 more source

Grain refinement of B319 alloy using spark plasma sintered Al-Ti-C grain refiners

open access: yesTransactions of the Indian Institute of Metals, 2018
The B319 aluminum alloy is a candidate material for automotive applications, where engineers and materials designers are seeking to improve vehicle efficiency through vehicle weight reduction. Although the alloy has many desirable properties, such as it’s excellent castability and moderate strength to weight ratio, continued efforts on further ...
Anil Prasad   +3 more
openaire   +2 more sources

Effect of Enhanced Grain Refinement in Friction Welded SUS316L Alloy [PDF]

open access: yesArchives of Metallurgy and Materials
To investigate the solid state weldability on SUS316L alloy, this work was carried out. Friction welding as a solid state welding was introduced and conducted at a rotation speed of 2,000 rpm and a friction pressure of 25 MPa on tube typed specimens ...
Youngkyu Kim, Kukhyun Song
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Achieving superior grain refinement efficiency for Al–Si casting alloys through a novel Al–La–B grain refiner

open access: yesJournal of Materials Research and Technology
Conventional Al–Ti–B and Al–Ti–C refiners fail to refine Al–Si casting alloys with high Si content due to the well-known “Si-poisoning” effect. Developing a novel grain refiner with superior grain refinement efficiency for Al–Si casting alloys is the ...
Qiuju Zheng   +3 more
doaj   +1 more source

Grain refinement of magnesium alloys by dynamic recrystallization (DRX): A review

open access: yesJournal of Materials Research and Technology, 2023
H. Mirzadeh
semanticscholar   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

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