Results 71 to 80 of about 114,535 (299)

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

Effects of Different Tillage Depths on Soil Physical Properties and the Growth and Yield of Tobacco in the Mountainous Chongqing Region of China

Agriculture
Tobacco (Nicotiana tabacum L.) is the most important cash crop in the mountainous Chongqing region, where mini rotary tillers are widely used for land preparation. The decline in tobacco yields has been partially attributed to deteriorating soil physical
Qingli Xiao, Weihao Zhao, Chenyi Ju, Kui Peng, Ming Yuan, Qizhong Tan, Rong He, Mingbin Huang   +7 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

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Effects of shelterbelt on soil bulk density, particle density, total porosity and moisture contents in the dry northwestern Nigerian

, 2007
The effect of shelterbelt at measurement position (60,120 and 180) on bulk density, particle density, total porosity and moisture contents of semi-arid soils in the extreme part of northwestern, Nigeria was studied.
Ekpe, II, Ogbodo, EN, SN Akilo, II Ekpe, Akilo, SN, EN Ogbodo, EO Okporie, Okporie, EO   +7 more
core   +1 more source

Influence of some organic amendment materials on total porosity of an eroded soil

Archives of Agronomy and Soil Science, 2012
It is reality that physical properties affect the soil productivity. Gas–water balance of soil is a very important criterion for the explanation of the physical condition of soils. This properties gain more consequences in eroded soils which have low productivity potential. The objective of this study was to determine the effect of resources of organic
Yakupoglu, Tugrul, Ozdemir, Nutullah
openaire   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Effects of conservation tillage on soil porosity in maize-wheat cropping system

Plant, Soil and Environment, 2009
A study was conducted on the effect of two single practices, including soil tillage and returning straw to soil, and their interaction on soil porosity of maize-wheat cropping system.
N. Tangyuan, H. Bin, J. Nianyuan, T. Shenzhong, L. Zengjia   +4 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Estimate of the effective and total porosity for Brazilian soils

Geotecnia, 2008
Este trabalho trata das relações entre as porosidades efetiva e total e algumas características físi - cas e hídricas de solos brasileiros. A obtenção indireta das porosidades valeu-se de diversas propriedades do so lo, tais como textura, índices físicos e inclusive da condutividade hidráulica.
Soto, Miguel, Kiang, Chang
openaire   +1 more source