Results 141 to 150 of about 419,752 (350)

Energetics and structural properties of twist grain boundaries in Cu [PDF]

open access: yes
Structural and energetics properties of atoms near a grain boundary are of great importance from theoretical and experimental standpoints. From various experimental work it is concluded that diffusion at low temperatures at polycrystalline materials take
Karimi, Majid
core   +1 more source

Effect of Copper Content on the Microstructure and Mechanical Properties of As‐Cast Refractory MoNbTi Multiprincipal Element Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Copper addition profoundly impacts MoNbTi multiprincipal element alloys. This study reveals copper's dual role, promoting microstructural refinement and strengthening intermetallics at optimal concentrations. An ideal copper content significantly boosts hardness and compressive strength, achieving superior mechanical performance.
Eder Lopes Ortiz   +6 more
wiley   +1 more source

Microstructural Evolution and Mechanical Properties of a Medium‐Manganese Steel Manufactured by Laser‐Based Powder Bed Fusion of Metals

open access: yesAdvanced Engineering Materials, EarlyView.
Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner   +4 more
wiley   +1 more source

Computed entropy spectra for grain boundary segregation in polycrystals

open access: yesnpj Computational Materials
Grain boundary solute segregation influences most bulk material properties, and understanding solute thermodynamics at grain boundaries is critical for engineering them.
Nutth Tuchinda, Christopher A. Schuh
doaj   +1 more source

(Nb,Ti)(C,N)‐Precipitates in High‐Strength Low‐Alloyed Steels—Modeling, Characterization and Validation

open access: yesAdvanced Engineering Materials, EarlyView.
Steel samples are investigated using complementary simulations and measurements. Transmission electron microscopy in bright‐field mode, combined with energy‐dispersive X‐ray spectroscopy maps for titanium and niobium, reveals distinct particle populations. Simulations reproduce these in size and composition.
Marc Laub   +3 more
wiley   +1 more source

Effect of the surface-active elements on grain boundary oxidation of hot-stamped steel

open access: yesMaterials Letters: X
The effects of minor surface-active alloy elements Sb and Sn on hot-stamped steel grain boundary oxidation at different coiling temperatures were studied through tube sealing and soaking.
Y.Y. Ge, Q.L. Cui
doaj   +1 more source

Grain boundary oxidation and an analysis of the effects of pre-oxidation on subsequent fatigue life [PDF]

open access: yes
The effects of preoxidation on subsequent fatigue life were studied. Surface oxidation and grain boundary oxidation of a nickel-base superalloy (TAZ-8A) were studied at 600 to 1000 C for 10 to 1000 hours in air.
Liu, H. W., Oshida, Y.
core   +1 more source

Additive Processing of Ti‐17 by Wire Arc Directed Energy Deposition: An Investigation of the Microstructure and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study focuses on processing the titanium alloy Ti‐17 using wire arc directed energy deposition (waDED), with an emphasis on the microstructure and mechanical properties. The waDED typical heat‐affected zone banding is characterized and related to the local mechanical properties.
Alexander Wenda   +7 more
wiley   +1 more source

Analysis of defect structure in silicon. Characterization of SEMIX material. Silicon sheet growth development for the large area silicon sheet task of the low-cost solar array project [PDF]

open access: yes
Statistically significant quantitative structural imperfection measurements were made on samples from ubiquitous crystalline process (UCP) Ingot 5848 - 13C.
Dunn, J.   +4 more
core   +1 more source

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