Results 71 to 80 of about 841,718 (266)

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Targeted imaging of specialized plant cell walls by improved cryo-CLEM and cryo-electron tomography

Nature Communications
Cryo-focused ion beam scanning electron microscopy (Cryo-FIBSEM) has become essential for preparing cryo-lamellae. Here, we present a series of improvements that speed up and enhance the efficiency of the Serial Lift-Out and SOLIST (Serialized On-grid ...
J. Daraspe, E. Bellani, D. De Bellis, C. Genoud, N. Geldner   +4 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Illuminating the Microscopic Realm: Application of Resin R221 for CLEM in microbes and plant tissues [PDF]

BIO Web of Conferences
Cheradil Andrea, Buchner Julia, Ostermeier Matthias, Gantner Isabella, Grünert Jennifer, Klingl Andreas   +5 more
doaj   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Creating free-standing nanostructures with plasmonic properties via Focused Electron Beam Induced Deposition [PDF]

BIO Web of Conferences
Reisecker Di Di Verena, Kuhness David, Haberfehlner Georg, Brugger-Hatzl Michele, Winkler Robert, Weitzer Anna, Loibner David, Dienstleder Martina, Kothleitner Gerald, Plank Harald   +9 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

OpenECCI - A Streamlined Open-Source Workflow for Electron Channelling Contrast Imaging of Crystal Defects [PDF]

BIO Web of Conferences
Xu Zhou, Ånes Håkon W., Gorelick Sergey, Fang Xiya, Miller Peter   +4 more
doaj   +1 more source

Brazing of Sn78Cu22 on aluminum substrates observed via in-situ experiments in a large-chamber SEM

Discover Mechanical Engineering
In situ brazing is a powerful method for understanding dynamic material behavior during joining process, enabling real-time observation of melting, wetting, and interfacial reactions.
Shohreh Khatami, Joachim Mayer, Anke Aretz, Bei Zhou, Markus Apel   +4 more
doaj   +1 more source

Nanoscale investigations of complex microbial interactions with terrestrial and extraterrestrial minerals using STEM based approach: implications for life on Earth and beyond

Frontiers in Environmental Chemistry
Our recent investigations using scanning transmission electron microscopy (STEM) based approach address tungsten-microbial interactions as a microbial strategy to withstand harsh environments, microbial metal extraction capacities for bioleaching ...
Tetyana Milojevic, Mihaela Albu, Ilse Letofsky-Papst, Artem Mashchenko   +3 more
doaj   +1 more source