Results 71 to 80 of about 60,231 (298)

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Soil Fragmentation and Friability. Effects of Soil Water and Soil Management

open access: yes, 2002
Soil fragmentation is a primary aim in most tillage operations in order to create a soil environment favourable for crop establishment and growth. Soils vary around the world from those exhibiting a self-mulching nature to those of a hardsetting nature ...
Munkholm, Lars J.
core  

Experimental study on mechanical and failure behavior of rock-concrete interface in coal mine roadway under direct tension

open access: yesInternational Journal of Coal Science & Technology
The rock-concrete interface has a significant influence on the stability of rock-concrete structures in coal mine roadway that are vulnerable to tensile loads.
Weiyue Bao   +5 more
doaj   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Algumas observações sobre as propriedades geotécnicas de solos estruturados derivados de granito da Grande Florianópolis [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia CivilNeste trabalho apresentam-se algumas considerações sobre o comportamento geo-mecânico de alguns solos naturalmente ...
Boehl, Pedro Eugênio Gomes
core  

Optimization of mechanical characteristics of cement mortar incorporating hybrid nano-sustainable powders

open access: yesJournal of the Mechanical Behavior of Materials
This research examines the impact of using hybrid nano-sustainable materials such as nano-silica and nano-slag, at three designated contents (2, 4, and 6%) by the cement weight.
Zghair Hussein H.
doaj   +1 more source

Strain Rate Effect on the Mechanical Properties and Fracture Surface Roughness of Sandstone Subjected to Dynamic Direct Tension

open access: yesIEEE Access, 2020
Dynamic properties of rocks are extremely important in a variety of rock mechanics and rock engineering problems. The split Hopkinson tensile bar (SHTB) system is used in this paper to measure the mechanical properties of sandstone specimens under ...
Yanlong Chen   +5 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

Biocomposite from polylactic acid and lignocellulosic fibers: structure-property correlations

open access: yes, 2013
PLA biocomposites were prepared using three corncob fractions and a wood fiber as reference. The composites were characterized by tensile testing, scanning electron (SEM) and polarization optical (POM) microscopy.
Renner, Károly   +4 more
core   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann   +8 more
wiley   +1 more source

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