Results 21 to 30 of about 5,538 (264)

Transition between strain softening and strain hardening in high strength Ta-5W alloy: Microstructural evolution and a modified Johnson-cook model

Journal of Materials Research and Technology
The compressive flow behavior, deformation microstructure, and constitutive response of a high strength Ta-5W alloy were investigated over strain rate and temperature ranges of 10 −3 –7300 s −1 and 298–873 K, respectively.
Chengzhi Yang, Zhengkun Li, Yajun Wang, Bang Xiao, Hong Li, Haifeng Zhang, Rui Yu, Zhengwang Zhu   +7 more
doaj   +1 more source

Computational engineering of the oxygen electrode-electrolyte interface in solid oxide fuel cells

npj Computational Materials, 2021
The Ce0.8Gd0.2O2−δ (CGO) interlayer is commonly applied in solid oxide fuel cells (SOFCs) to prevent chemical reactions between the (La1−x Sr x )(Co1−y Fe y )O3−δ (LSCF) oxygen electrode and the Y2O3-stabilized ZrO2 (YSZ) electrolyte.
Kaiming Cheng, Huixia Xu, Lijun Zhang, Jixue Zhou, Xitao Wang, Yong Du, Ming Chen   +6 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Effects of Deoxidation Processes on Inclusions in Environmentally Friendly Free-Cutting Steel

Metals
Deoxidation of liquid steel is a key link that affects the quality of environmentally friendly free-cutting steel. The selection and addition sequence of deoxidizer affects the composition, size, distribution, and morphology of non-metallic inclusions ...
Dong Wang, Binzhou Li, Luoyi Huang, Dongping Zhan, Hang Gao   +4 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Studies on Obtaining Porous Hydroxyapatite Structures Using Porogen Agents of Natural Origin

Proceedings, 2019
Hydroxyapatite is a calcium phosphate-based biomaterial utilized both in the medicine field(bone cement, scaffold, drug-delivery) and in the heritage field (stone conservation) [...]
Denisa-Loredana Copilu, Andreea Maidaniuc, Tudor-Mihai Butte, Florin Miculescu, George E. Stan, Rodica-Mariana Ion   +5 more
doaj   +1 more source

Development of a method for determination of metallic iron content within hot briquette iron (HBI) for steelmaking [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2016
The growing use of metallic iron in metallurgy and industrial chemical applications requires a fast, easy and cheap method for the determination of metallic iron, not merely in recyclable materials, such as iron pellets, reduced iron mill scale ...
Morcali M.H.
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect of Solution Treatment on Mechanical Properties and Wear Resistance of Alloyed High-Manganese Steel

Metals
We explored the effects of different solution treatment temperatures on the microstructure, mechanical properties and wear resistance of alloyed high-manganese steel, as well as the correlations among the three parameters.
Xiya Qiao, Boyong Li, Xiao Han, Xiangyun Zhang, Xin Yang   +4 more
doaj   +1 more source