Results 31 to 40 of about 270 (258)

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

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

Full W ITER: Assessment of expected W erosion and implications of boronization on fuel retention

Nuclear Materials and Energy
Substituting Beryllium (Be) with Tungsten (W) as material for the first wall gives rise to new challenges for the ITER project. The additional W at the main chamber could result in a significant influx of high-Z impurities into the plasma owing to the ...
K. Schmid, T. Wauters
doaj   +1 more source

Compound Boronizing and Its Kinetics Analysis for H13 Steel with Rare Earth CeO₂ and Cr₂O₃

Applied Sciences, 2022
The compound boronizing of H13 steel sample was carried out by adding rare earth CeO2, and the effects of main parameters of compound boronizing on the properties of the boronizing layer were investigated.
Shunqi Mei, Yanwei Zhang, Quan Zheng, Yu Fan, Burial Lygdenov, Alexey Guryev   +5 more
doaj   +1 more source

Redistribution of boron in leaves reduces boron toxicity [PDF]

Plant Signaling & Behavior, 2009
High soil boron (B) concentrations lead to the accumulation of B in leaves, causing the development of necrotic regions in leaf tips and margins, gradually extending back along the leaf. Plants vary considerably in their tolerance to B toxicity, and it was recently discovered that one of the tolerance mechanisms involved extrusion of B from the root ...
Reid, R., Fitzpatrick, K.
openaire   +3 more sources

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

Plasma modification through boron particulate injection in the full tungsten environment of WEST

Nuclear Fusion
Recent experiments have confirmed the compatibility of extended boron particulate injections with high performance plasma discharges in the full tungsten (W) environment of WEST.
R. Lunsford, A. Gallo, K. Afonin, Ph. Moreau, A. Diallo, M. De Combarieu, S. Bose, D. Sgrelli, A. Bortolon, C. Bourdelle, C. Desgranges, A. Ekedahl, C. Guillemaut, J.P. Gunn, C.C. Klepper, P. Manas, A. Nagy, F.-P. Pellissier, E. Tsitrone, E.A. Unterberg, L. Vermare, the WEST Team   +21 more
doaj   +1 more source

Study of spectral features and depth distributions of boron layers on tungsten substrates by ps-LIBS in a vacuum environment

Nuclear Materials and Energy
Boronization is used in present-devices as wall condition technique due to its effectiveness in reducing oxygen and other impurities in the vessel as well as improving plasma performance.
Huace Wu, Rongxing Yi, Anne Houben, Sebastijan Brezinsek, Marcin Rasinski, Cong Li, Gennady Sergienko, Yunfeng Liang, Timo Dittmar, Hongbin Ding   +9 more
doaj   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

Advanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut, Pierre Le Berre, Hamdi Jaballah, Lukas Fink, Victor Poline, Richard Haettel, Stéphane Grenier, Gilbert Chahine, Ewen Bellec, Guillaume Buatier, Wilfried Hortschitz, Santa Pile, Thomas Schrefl, Nils Blanc, Yuan Hong, Thibaut Devillers, Nora M. Dempsey   +16 more
wiley   +1 more source

Studies of material deposition during boronization using quartz crystal microbalance in EAST

Nuclear Materials and Energy
Boronization is a widely employed technique for controlling fuel recycling and suppressing impurities. It is expected to be a routine wall conditioning method in the fully tungsten (W) wall configuration of the International Thermonuclear Experimental ...
Yuming Liu, Rong Yan, Lei Mu, Baoguo Wang, Qian Long, Zhaohui Wang, Yefan Zhu, Yuxian Wen, Zengjie Li, Shuyue Sun, Rui Ding, Junling Chen   +11 more
doaj   +1 more source