Results 81 to 90 of about 196,218 (321)

Strain rate dependence of the brittle-to-ductile transition temperature in tungsten [PDF]

open access: yes, 2008
International audienceWe have investigated the strain rate dependence of the brittle-to-ductile transition (BDT) temperature in pre-cracked tungsten single-crystals and polycrystals.
Roberts, Steve G, Giannattasio, Armando
core   +3 more sources

Low Temperature Impact Toughness of Steel S355NL for Wind Power Tower Flange

open access: yesTeshugang, 2015
The tangential and axial impact toughness of steel S355NL for wind power tower flange (/% : 0.14C, 0.22Si, 1.35Mn, 0.010P, 0.002S, 0.06Cr, 0.01Mo, 0.l0Ni, 0.03Cu, 0.40Ceq) at -20~-80℃ has been tested and analyzed.
戈文英
doaj  

Intrinsic Mechanisms of Ductile-brittle Transition for F460 Steel Welding Coarse Grained Heat Affected Zones with Different Heat Inputs

open access: yesCailiao gongcheng, 2016
Coarse grain heat affected zone (HAZ) of F460 steel was simulated by a Gleeble 3800 thermo-mechanical simulator. The microstructure, critical event of the HAZ formed at various heat inputs (E) were characterized and determined by optical microscopy (OM ...
LI Jing   +4 more
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Estimation of the Fracture Toughness Threshold of a Ferritic Steel at the Lower Ductile to Brittle Transition Region [PDF]

open access: yesMaterials Research, 2016
The ADN420 ferritic steel (A615 steel Grade 60 [420]), used as reinforcing bars (rebar) in concrete, shows the so called ductile to brittle transition. Room temperature is located on the lower third region of the transition zone.
Carlos Berejnoi   +3 more
doaj   +1 more source

Immunoinflammatory Mechanisms and Biocompatibility of Bioactive Dental Biomaterials: From Fundamental Insights to Clinical Translation

open access: yesAdvanced Healthcare Materials, EarlyView.
Surface‐host dialogue at the implant interface governs biological fate and osseointegration. Surface physicochemical properties of titanium (Ti) dental implants, including microgrooves, nanopatterns, nanotopography, roughness, and wettability, modulate the initial adsorption of proteins and the formation of a dynamic biointerface.
Daniela Moreira Cunha   +9 more
wiley   +1 more source

Crustal Thermal Structure and Exhumation Rates in the Southern Alps Near the Central Alpine Fault, New Zealand

open access: yesGeochemistry, Geophysics, Geosystems, 2020
We investigate orogenic uplift rates and the thermal structure of the crust in the hanging wall of the Alpine Fault, New Zealand, using the hypocenters of 7,719 earthquakes that occurred in the central Southern Alps between late 2008 and early 2017, and ...
Konstantinos Michailos   +3 more
doaj   +1 more source

A New Method for Determining the Brittle-to-Ductile Transition Temperature of a TiAl Intermetallic

open access: yesMetals, 2020
Intermetallic materials typically change their deformation behavior from brittle to ductile at a certain temperature called the Brittle-to-Ductile Transition Temperature (BDTT). This specific temperature can be determined by the Charpy impact, tensile or
Sarper Nizamoglu   +3 more
doaj   +1 more source

Measurement of the ductile to brittle transition temperature for waste tank cooling coils [PDF]

open access: yes, 1992
Charpy impact tests were conducted on ASTM A106 carbon steel archived from SRS waste tanks to determine the susceptibility of the cooling coils to brittle fracture during a seismic event. The highest ductile to brittle transition temperature measured was {minus}5{degree}F and, with the addition of a 30{degree}F safety factor, the minimum safe operating
openaire   +4 more sources

Natural Biomaterials for Osteochondral Repair: From Source to Strategy

open access: yesAdvanced Healthcare Materials, EarlyView.
Biological origin‐guided overview of natural biomaterials and therapeutic strategies for osteochondral tissue engineering. The circular diagram categorizes representative materials and strategies into plant/algae‐derived, microbial‐derived, animal‐derived, and human‐derived sources, centered on an osteochondral defect repair model.
Hengyu Liu   +5 more
wiley   +1 more source

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