Results 71 to 80 of about 279,830 (266)

Phase transition retrieval through in-situ observations

Multiphase Science and Technology, 2022
Abstract Liquid transfer features in heating moisture-contenting materials are studied as a problem of phase transition retrieval by observations of specimen moisture state. The processing method is designed under the condition that a given sample weakly reflects the observed state changes.
openaire   +1 more source

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

Advanced 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, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Study on the Mechanisms of Wear Reduction of Artificial Cartilage through in Situ Observation on Forming Protein Boundary Film

Tribology Online, 2007
PVA (poly (vinyl alcohol)) hydrogel is one of the anticipated materials for artificial cartilage. In previous research, authors found that the structure of protein boundary film on rubbing surface is a key essence for wear reduction of PVA hydrogel.
Seido Yarimitsu, Kazuhiro Nakashima, Yoshinori Sawae, Teruo Murakami   +3 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Editorial: Deep-sea sampling technology

Frontiers in Marine Science, 2023
Yuan Lin, Jiawang Chen, Zhilei Sun, Nhan Phan-Thien   +3 more
doaj   +1 more source

Observations Reveal Intense Air‐Sea Exchanges Over Submesoscale Ocean Front

Geophysical Research Letters
Air‐sea exchanges across oceanic fronts are critical in powering cloud formation, precipitation, and atmospheric storms. Oceanic submesoscale fronts of scales 1–10 km are characterized by strong sea surface temperature (SST) gradients.
Haiyuan Yang, Zhaohui Chen, Shantong Sun, Mingkui Li, Wenju Cai, Lixin Wu, Jinzhuo Cai, Bingrong Sun, Ke Ma, Xiaohui Ma, Zhao Jing, Bolan Gan   +11 more
doaj   +1 more source

Susceptibility assessment of geological hazards in Shenzhen Town, Ninghai county based on the APH-CF model

Frontiers in Earth Science
IntroductionThis work employs a coupled evaluation model that integrates deterministic coefficients with the Analytic Hierarchy Process to conduct a comprehensive assessment of geological disaster susceptibility in Shenzhen Town, Ninghai County ...
Shuai Han, Ran Li, Ran Li, Ran Li, Shujun Hui, Qiang Sun, Taili Zhang   +6 more
doaj   +1 more source