Results 121 to 130 of about 26,030 (275)

The strengthening and ductilization mechanisms of D406A high-strength steel treated by quenching and partitioning process

Materials Research Express
As a low-alloy high-strength steel, D406A steel functions as a crucial structural material for solid rocket motor casings. With the rapid advancement in solid rocket motor technology, conventional quenching and tempering (Q&T) heat-treated D406A steel ...
Weijia Ran, Fei Zhao, Wensen Huang, Yuanbiao Tan, Yonghai Ren, Longxiang Wang   +5 more
doaj   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Bioactive Conductive Ti3C2Tx‐Ce Hydrogel Facilitates Spinal Cord Injury Repair Through ROS Scavenging and Mitochondrial Regulation

Advanced Functional Materials, EarlyView.
Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang, Qing Liu, Ang Lv, Yabin Lin, Jiawei Chen, Ning Ding, Chunlei Zhang, Shuai Zhou, Bo Yuan, Weiwei Zhao, Liming Li, Luping Zhang, Fei Huang   +12 more
wiley   +1 more source

Optimization of Heat Treatment Process and Strengthening–Toughening and Mechanism for H13 Steel

Metals
This study investigates H13 steel through Q-P-T (quenching–partitioning–tempering) heat treatment experiments, focusing on the effects of quenching and tempering temperatures on its microstructure and mechanical properties.
Yuzhong Wang, Xiaoping Ren, Zhiheng Hou, Aisheng Jiang, Jinfu Zhao, Zhanqiang Liu   +5 more
doaj   +1 more source

Development of quenching and partitioning steels (Q&P)

(English) The automotive industry is constantly seeking to improve the performance of the car and at the same time reduce CO2 emissions into the environment, which can be achieved among other solutions through the use of advanced high-strength steels (AHSS) that help reduce the weight of the car and keep the safety of the passengers.
openaire   +2 more sources

A Mechanistic Blueprint for Fast, High‐Yield Green Scintillators Using Conjugated Polymer–Nanocrystal Composites

Advanced Functional Materials, EarlyView.
Conjugated polymer–nanocrystal composites are investigated to develop fast, high‐yield green scintillators. The polymer F8BT enables efficient, ultrafast emission, while blends with non‐emitting HfO2 nanocrystals and luminescent CdZnS/ZnS quantum dots reveal distinct sensitization mechanisms.
Chenger Wang, Emanuele Mazzola, Andrea Fratelli, Matteo L. Zaffalon, Francesco Bruni, Francesco Carulli, Xiaohe Zhou, Saptarshi Chakraborty, Leonardo Poletti, Luca Cappelletti, Francesco Meinardi, Francesca Rossi, Luca Gironi, Sergio Brovelli   +13 more
wiley   +1 more source

Interrupted quenching in high carbon steels for forgings

Metalurgija, 2017
The present study is focused on analyzing the effect of the interrupted quenching followed by a partitioning process in a high carbon steel 0,50 % C, 1,50 % Mn, 0,40 % Si, 2,00 % Cr without significant contribution of Al.
G. Napoli, S. Mengaroni, M. Rallini, L. Torre, A. Di Schino   +4 more
doaj  

Energy-dependent quenching adjusts the excitation diffusion length to regulate photosynthetic light harvesting

, 2018
An important determinant of crop yields is the regulation of photosystem II (PSII) light harvesting by energy-dependent quenching (qE). However, the molecular details of excitation quenching have not been quantitatively connected to the PSII yield, which
Amarnath, Kapil, Bennett, Doran I. G., Fleming, Graham R.   +2 more
core  

Spatial Patterning of Modular Gelatin‐Peroxide Microspheres in Melt‐Electrowritten Scaffolds Provides Controlled Oxygen Generation and Mitigates Hypoxia and Cytotoxicity

Advanced Healthcare Materials, EarlyView.
A bioassembly approach is described using photo‐crosslinked gelatin‐based microgels containing calcium peroxide (CaO2) to generate oxygen (O2) and enhance cell survival in hypoxic conditions (1% O2). Bioassembly enables spatial patterning of individual CaO2‐laden and mesenchymal stem cell (MSC)‐laden microgels and allows for decoupling and mitigating ...
Axel E. Norberg, F. Max Yavitt, Ezgi Bakirci, Khoon Lim, Tim B. F. Woodfield, Gabriella C. J. Lindberg   +5 more
wiley   +1 more source

Effects of annealing and quenching temperature on microstructure evolution and mechanical properties in Fe-0.17C-2.10Mn-0.51Si steel

Materials & Design
The optimum mechanical properties of Fe-0.17C-2.10Mn-0.51Si steel are achieved by adjusting annealing and quenching temperatures. Annealing at 790 °C for 300 s, followed by quenching at 310 °C for 15 s and partitioning at 460 °C for 50 s, results in a ...
Panpan Yuan, Depeng Shen, Wei Sun, Bingtao Tang   +3 more
doaj   +1 more source