Results 1 to 10 of about 569 (211)

The influence of sliding velocity and temperature on the ductile-to-brittle transition in asperity-level wear: A molecular dynamics study

open access: yesFriction
During sliding contact, asperities may undergo either ductile smoothing or brittle fracture, producing debris. A critical junction scale, d∗, governed by material properties, dictates this transition.
Sacha Zenon Wattel   +1 more
doaj   +1 more source

Role of Constraint on Ductile Brittle Transition Temperature of Pipe Steel X65

open access: yesProcedia Materials Science, 2014
AbstractThe brittle–ductile transition temperature (DBTT) is not intrinsic to a material but depends on the specimen type and loading mode used for the test. The influence of these parameters is related to the plastic constraint. Here the constraint is evaluated by the effective T stress obtained by the stress different method on the notch tip stress ...
Pluvinage, G.   +3 more
openaire   +1 more source

The effect of cooling rate on the ductile-brittle bend-transition temperature of chromium wire [PDF]

open access: yesActa Metallurgica, 1966
Quenching and slow-cooling effects on ductile- brittle bend-transition temperature of chromium ...
A. Gilbert, M.J. Klein
openaire   +1 more source

Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints

open access: yesMetals, 2019
This work systematically investigates the interface behavior and impact properties of the keyhole-free friction stir spot welding (FSSW) of a dissimilar metal AA6082-T4 Al alloy and DP600 galvanized steel.
Zhongke Zhang   +3 more
doaj   +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

Strength models of the terrestrial planets and implications for their lithospheric structure and evolution

open access: yesProgress in Earth and Planetary Science, 2021
Knowledge of lithospheric strength can help to understand the internal structure and evolution of the terrestrial planets, as surface topography and gravity fields are controlled mainly by deformational features within the lithosphere.
Ikuo Katayama
doaj   +1 more source

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

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  

Delamination induced exceptional cryogenic toughness in ferrite/martensite dual-phase layered steels

open access: yesMaterials Research Letters
The ductile-to-brittle transition (DBT) with decreasing temperature in Body-centered cubic (BCC) steels restricts their application in cryogenic environments.
Bo Yang   +5 more
doaj   +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

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