Results 21 to 30 of about 427,988 (311)

A model for the yield strength anomaly of Fe—Al [PDF]

open access: yesPhilosophical Magazine A, 1996
ABSTRACTA phenomenological model is used to explain the yield strength anomaly in FeAl. The model incorporates hardening by thermal vacancies at intermediate temperatures, and dislocation creep at elevated temperatures. Since the vacancy concentration increases exponentially with increasing temperature, the model predicts an exponential increase in ...
Baker, I., George, E. P.
openaire   +1 more source

Ab Initio-Based Modelling of the Yield Strength in High-Manganese Steels

open access: yesMetals, 2018
An ab initio-based model for the strength increase by short-range ordering of C-Mn-Al clusters has been developed. The model is based on ab initio calculations of ordering energies.
Simon Sevsek, Wolfgang Bleck
doaj   +1 more source

Effect of Transition Metal Elements on High-Temperature Properties of Al–Si–Cu–Mg Alloys

open access: yesMetals, 2021
In the present work, we studied the effects of transition metal elements on microstructure evolution and high-temperature mechanical properties via the preparation of new modified alloys with micro-additions of Cr, Ti, V, Zr, Mo, and Mn to address the ...
Chao Gao, Lingkun Zhang, Bingrong Zhang
doaj   +1 more source

Analysis of Strength Effects on the Dynamic Response of a Shaped-Charge Under Lateral Disturbances

open access: yesApplied Sciences
To study the variation law of the penetration power of energy-concentrated jets on target plates with different yield strengths under lateral disturbance, a finite element model of the dynamic penetration of energy-concentrated jets was established ...
Xuepeng Zhang   +4 more
doaj   +1 more source

On the Yield Strength of Oceanic Lithosphere [PDF]

open access: yesGeophysical Research Letters, 2017
AbstractThe yield strength of oceanic lithosphere determines the mode of mantle convection in a terrestrial planet, and low‐temperature plasticity in olivine aggregates is generally believed to govern the plastic rheology of the stiffest part of lithosphere.
Chhavi Jain   +2 more
openaire   +1 more source

Mathematical modeling of cross-corrugated waveguide shell formation

open access: yesКосмические аппараты и технологии, 2023
Flexible cross-corrugated shells are used to create flexible waveguides that connect rigid waveguides. They compensate for mounting stresses during assembly, provide temperature compensation and vibration damping.
V. V. Timofeev   +2 more
doaj   +1 more source

Does soil strength play a role in wheat yield losses caused by soil drying?

open access: yes, 2006
Shoot growth in wheat is sensitive to high soil strength, but as high strength and drying tend to occur together it has proved difficult to separate the effects of water stress and mechanical impedance.
Cope, R.E.   +11 more
core   +1 more source

Tensile behavior of B4C particulate reinforced Al2024 alloy metal matrix composites [PDF]

open access: yesFME Transactions, 2017
In the present investigation, microstructure study and tensile behavior of B4C particulate reinforced Al2024 alloy composites have been reported. Al2024 matrix composites containing boron carbide were fabricated by conventional stir casting method.
Nagaral Madeva   +3 more
doaj  

Hardness and Yield Strength of CO2 Ice Under Martian Temperature Conditions [PDF]

open access: yes, 2020
Although ice fracturing and deformation is key to understanding some of the landforms encountered in the high-latitude regions on Mars and on other icy bodies in the solar system, little is known about the mechanical characteristics of CO2 ice.
E. Kaufmann   +11 more
core   +1 more source

Estimation of dislocation densities in cold rolled Al-Mg-Cu-Mn alloys by combination of yield strength data, EBSD and strength models

open access: yes, 2005
Al-Mg-Cu-Mn alloys have been developed for the packaging industry, in which large cold-working deformations are normally applied that can produce high dislocation densities.
Zhu, Z., Starink, M.J., Wang, S.C.
core   +1 more source

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