Results 11 to 20 of about 10,453 (298)

Rheological transitions in the middle crust: insights from Cordilleran metamorphic core complexes [PDF]

open access: yesSolid Earth, 2017
High-strain mylonitic rocks in Cordilleran metamorphic core complexes reflect ductile deformation in the middle crust, but in many examples it is unclear how these mylonites relate to the brittle detachments that overlie them.
F. J. Cooper, J. P. Platt, W. M. Behr
doaj   +1 more source

Temperature-dependent deformation and fracture properties of low-carbon martensitic steel in different stress states

open access: yesJournal of Materials Research and Technology, 2023
The temperature-dependent ductile-brittle transition (DBT) in low-carbon martensitic steel is investigated in different stress states. To capture the effects of the stress state, tensile tests have been performed with flat specimens and three-point ...
Zhen Zhang   +4 more
doaj   +1 more source

Depth‐Dependent Slow Earthquakes Controlled by Temperature Dependence of Brittle‐Ductile Transitional Rheology

open access: yesGeophysical Research Letters, 2023
The discovery of slow earthquakes illuminates the existence of a strange depth dependence of seismogenesis, which contradicts the common understanding of smooth brittle/seismic‐ductile/aseismic transition as going deeper into the earth's surface layers ...
Ryosuke Ando   +3 more
doaj   +1 more source

Brittle–ductile transition during diamond turning of single crystal silicon carbide [PDF]

open access: yes, 2013
In this experimental study, diamond turning of single crystal 6H-SiC was performed at a cutting speed of 1 m/s on an ultra-precision diamond turning machine (Moore Nanotech 350 UPL) to elucidate the microscopic origin of ductile-regime machining ...
Reuben, Robert L   +5 more
core   +1 more source

Experimental study of the brittle–ductile transition in hot cutting of SG iron specimens [PDF]

open access: yes, 2013
http://www.sciencedirect.com/science/article/pii/S0924013612002579The present paper investigates the brittle-ductile transition (BDT) of the primary shear zone during cutting of spheroidal graphite (SG) iron in the austenitization temperature range ...
EL MANSORI, Mohamed   +2 more
core   +1 more source

Reference toughness – a pragmatic tool to estimate ductile-brittle transition temperatures

open access: yesProcedia Structural Integrity, 2018
Abstract Recent advances show that tough as-quenched ultra-high-strength steels in fully and partially martensitic conditions demand proper control of the effective coarse grain size, which is the key microstructural parameter controlling the toughness in the ductile-brittle transition region.
Pallaspuro, S. (Sakari)   +4 more
openaire   +3 more sources

Effect of Texture on the Ductile–Brittle Transition Range and Fracture Mechanisms of the Ultrafine-Grained Two-Phase Ti-6Al-4V Titanium Alloy

open access: yesMetals, 2023
In this work, the technique of equal-channel angular pressing (ECAP) that enables producing bulk billets was used to form a UFG structure in Ti-6Al-4V alloy. A subsequent warm upsetting simulates die forging and the production of a part.
Iuliia M. Modina   +4 more
doaj   +1 more source

Surface imaging of metallic material fractures using optical coherence tomography [PDF]

open access: yes, 2014
We demonstrate the capability of optical coherence tomography (OCT) to perform topography of metallic surfaces after being subjected to ductile or brittle fracturing.
Demian, D.   +4 more
core   +1 more source

Machine-Learning-Based Composition Analysis of the Stability of V–Cr–Ti Alloys

open access: yesJournal of Nuclear Engineering, 2023
Machine learning methods allow the prediction of material properties, potentially using only the elemental composition of a molecule or compound, without the knowledge of molecular or crystalline structures.
Katsuaki Tanabe
doaj   +1 more source

Determination of ductile-to-brittle transition temperature of NIOMOL 490K steel welded joints [PDF]

open access: yes, 2022
This paper is devoted to the ductile–brittle transition behavior of high strength low alloyed structural steel NIOMOL 490K. This steel grade is designed for welded pressure vessels exposed to dynamic loads, operating at temperatures below zero, and that ...
Bulatović, Srđan   +12 more
core   +2 more sources

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