Results 71 to 80 of about 462,132 (301)

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

High‐Temperature Phase Transformation in a V‐9Si‐6.5B Alloy: The Kinetic and Crystallographic Pathway From V5SiB2 to V8SiB4

Advanced Engineering Materials, EarlyView.
In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti, Andreas Stark, Roja Rani Korrayi, Florian Pyczak, Georg Hasemann   +4 more
wiley   +1 more source

https://rie.cujae.edu.cu/index.php/RIE/article/view/545/602

Revista Científica de Ingeniería Energética, 2018
Los procesos de transferencia de energía térmica son problemas importantes a resolver en el campo de la ingeniería. En este ámbito, los intercambiadores de calor son uno de los equipos más usados en la industria.
Andres Adrian Sánchez Escalona, Ever Góngora Leyva   +1 more
doaj  

Syn-to post-orogenic mineralization in the Shuangkoushan Au–Ag–Pb deposit, North Qaidam: insights from H–O–S isotopes and U–Pb geochronology

Frontiers in Earth Science
The Shuangkoushan Au–Ag–Pb deposits, hosted within meta-basaltic rocks of the Tanjianshan Group in the North Qaidam Orogenic Belt, northwest China, present significant insights into syn-to post-orogenic mineralization processes.
Junzhen Yu, Junzhen Yu, Dexian Li, Dexian Li, Youye Zheng, Youye Zheng, Bo Ma, Bo Ma, Jian Wang, Jian Wang, Guomei Shi, Guomei Shi, Rongke Xu, Junaid Khan, Asma Tahir   +14 more
doaj   +1 more source

Adsorción de escandio del licor residual WL con carbón activado modificado con soluciones de H3PO4

Minería y Geología, 2023
Se exponen los resultados del efecto de la oxidación de un carbón activado virgen y de ese mismo carbón, pero regenerado luego de ser declarado agotado en el proceso de producción de ron, empleando soluciones de ácido fosfórico de concentración de 1 mol ...
Aymee Reyes-Dalmau, Yudith González-Díaz, Eidier Góngora-Blet, Leonel Garcell-Puyáns, Marian Rigñack-Delgado   +4 more
doaj  

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

An econometric model of the world nickel industry [PDF]

The Third United Nations Conference on the Law of the Sea has been concluded in the spring of 1982 with the adoption of a convention text. The acceptance of this text (signature and ratification) by the necessary number of states is still highly ...
Rafati, Mohammed R.
core  

Nickel-Catalyzed Amination of Alkyl Electrophiles

, 2023
Bimolecular nucleophilic substitution SN2 is the earliest and most important means of amination of alkyl electrophiles; its practical utilization is largely limited to primary or activated substrates.
Shengyang Ni, Yi Wang, Qing Wang (27728), Xiangzhang Tao (14191521), Shengyang Ni (1408804), Yi Pan (68170), Xiangzhang Tao, Yi Wang (32470), Yi Pan, Qing Wang   +9 more
core   +1 more source

Associations among Wine Grape Microbiome, Metabolome, and Fermentation Behavior Suggest Microbial Contribution to Regional Wine Characteristics

mBio, 2016
Regionally distinct wine characteristics (terroir) are an important aspect of wine production and consumer appreciation. Microbial activity is an integral part of wine production, and grape and wine microbiota present regionally defined patterns ...
Nicholas A. Bokulich, Thomas S. Collins, Chad Masarweh, Greg Allen, Hildegarde Heymann, Susan E. Ebeler, David A. Mills   +6 more
doaj   +1 more source