Results 21 to 30 of about 6,814 (257)

A Study on the Brittle-to-Ductile Transition Temperature of Forged β-Solidifying TiAlMn and TNM Alloys

open access: yesCrystals, 2022
To further determine the brittle-to-ductile transition temperature, the microstructures and mechanical properties of typical forged β-solidifying Ti-42Al-5Mn (TiAlMn) and Ti-43Al-4Nb-1Mo-0.5B (TNM) alloys were studied.
Xiang Su   +7 more
doaj   +1 more source

Brittle–ductile transitions in polycrystalline tungsten

open access: yesPhilosophical Magazine, 2010
The strain rate dependence of the brittle-to-ductile transition (BDT) temperature was investigated in notched and un-notched miniature bars made of high-purity polycrystalline tungsten and in notched bars of less-pure sintered material. The activation energy, E BDT, for the process controlling the BDT in pure tungsten was equal to 1.0 eV both in un ...
Giannattasio, A   +3 more
openaire   +1 more source

Critical Depth of Hard Brittle Materials on Nano Plastic Forming

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper reports on ductile to brittle transition of hard brittle materials in nano plastic forming process. Formability of some hard brittle materials, i.e., glasses, silicon and quartz wafers, were examined through a specially designed and developed ...
Masahiko YOSHINO   +3 more
doaj   +1 more source

Study on impact properties of Ti6211 titanium alloy at different temperatures [PDF]

open access: yesMATEC Web of Conferences, 2020
In this paper, Charpy notched pendulum test was used to study the impact properties of Ti6211 titanium alloy at -60 ℃, -40 ℃, -20 ℃, 23 ℃, 100 ℃, 200 ℃ and 300 ℃, respectively, and the fracture morphology was analyzed.
Tian Yanwen, Hao Fang, Xu Enen, Du Junqi
doaj   +1 more source

Microscale cavitation as a mechanism for nucleating earthquakes at the base of the seismogenic zone

open access: yesNature Communications, 2017
Earthquakes frequently occur in the brittle-ductile transition near the base of the seismogenic zone. Using shear experiments on calcite faults, here the authors show that microscale cavitation plays a role in controlling the brittle-ductile transition ...
Berend A. Verberne   +6 more
doaj   +1 more source

Burial depth interval of the shale brittle–ductile transition zone and its implications in shale gas exploration and production

open access: yesPetroleum Science, 2017
Brittleness and ductility of shale are closely related to shale gas exploration and production. How to predict brittleness and ductility of shale is one of the key issues in the study of shale gas preservation and hydraulic fracturing treatments.
Yu-Song Yuan   +5 more
doaj   +1 more source

Application of a Tensile Test Method to Identify the Ductile-Brittle Transition of Caramel

open access: yesFoods, 2022
During cutting of foods, tensile stresses in front of the blade are responsible for the separation of the material. Therefore, tensile tests can be helpful to gain knowledge on deformation properties related to pre-fracture cutting behavior as well as on
Dennis Schab   +3 more
doaj   +1 more source

The topographic signature of temperature-controlled rheological transitions in an accretionary prism [PDF]

open access: yesSolid Earth, 2022
The local topographic slope of the accretionary prism is often used together with the critical taper theory to determine the effective friction on subduction megathrust.
S. Pajang   +3 more
doaj   +1 more source

Ductile and brittle transition behavior of titanium alloys in ultra-precision machining

open access: yesScientific Reports, 2018
Titanium alloys are extensively applied in biomedical industries due to their excellent material properties. However, they are recognized as difficult to cut materials due to their low thermal conductivity, which induces a complexity to their deformation
W. S. Yip, S. To
doaj   +1 more source

Ductile–Brittle Transition Temperature of Epoxy Asphalt Concrete of Steel Bridge Deck Pavement Based on Impact Toughness

open access: yesAdvances in Materials Science and Engineering, 2023
To solve the common low-temperature cracking problem of epoxy asphalt concrete pavement on the steel bridge deck, based on the principle of fracture mechanics and energy method, this paper puts forward the impact toughness as the evaluation index of ...
Shunxian Zhang   +4 more
doaj   +1 more source

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