Results 61 to 70 of about 101,903 (246)

Analysis of EAF Energy Efficiency Characteristics Based on Industrial Data and Energy Balance

Metals
Improving energy efficiency of electric arc furnace (EAF) steelmaking is a key pathway for the iron and steel industry to achieve carbon neutrality. Based on statistical data from 56 industrial EAFs, this study established and validated a comprehensive ...
Hongjin Zhang, Guangsheng Wei, Fuhai Liu, Shenghai Han, Xiaodan Zhong, Jianzhong Wang, Xiaoyun Luo   +6 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Boosted charge and proton transfer over ternary Co/Co3O4/CoB for electrochemical nitric oxide reduction to ammonia

Nature Communications
The electrochemical nitric oxide reduction reaction (NORR) holds a great potential for removing environmental pollutant NO and meanwhile generating high value-added ammonia (NH3).
Xiaoxuan Fan, Zhenyuan Teng, Lupeng Han, Yongjie Shen, Xiyang Wang, Wenqiang Qu, Jialing Song, Zhenlin Wang, Haiyan Duan, Yimin A. Wu, Bin Liu, Dengsong Zhang   +11 more
doaj   +1 more source

A study on carbons in carbon-steel martensite.

Nihon Kessho Gakkaishi, 1990
The atomic arrangements in Fe- C, especially the interstitial carbon positions have been discussed utilizing 57Fe Mossbauer spect roscopy and 13C and 57 Fe spin-echo NMR measurements. Domain wall enhanced spin-echo of 13C and 57Fe have been observed in ferromagnet is Fe-1-6.9 at.
openaire   +1 more source

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

A review of catalytic conversion of carbon dioxide to gas: Applications, challenges, and future development directions

Journal of CO2 Utilization
Catalytic conversion of CO2 is a clean technology that converts CO2 into usable energy, possessing significant environmental protection and energy utilization value. This article reviews the reaction mechanism, catalyst types and performance, challenges,
Junlin He, Chao Feng, Tao Lin, Mingwei Tu, Rong Zhu, Yanhong Wang, Huapeng Yang, Shanghai Yi, Guangsheng Wei, Xiaoling Wang, Jie Zhang   +10 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Efficient design of hydrogen-resistant ultra-high-strength steels via active learning and multiscale characterization

Corrosion Communications
High-strength martensitic steels are extensively used in aerospace, automotive manufacturing, marine engineering, and other demanding applications due to their exceptional mechanical properties. In this work, an active learning strategy integrated with a
Chunlei Shang, Tongbo Jiang, Hong-Hui Wu, Faguo Hou, Shuize Wang, Junheng Gao, Haitao Zhao, Chaolei Zhang, Xinping Mao   +8 more
doaj   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

Advanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle, Andreas Limper, Ulrich Giese, Carlos Lucke, Mario Beiner, Christoph Gögelein, Lisa Leuchtenberger‐Engel, Christian Hopmann   +7 more
wiley   +1 more source

Enhancing oxidation resistance of a novel nickel-saving dual-phase heat-resistant cast steel based on Mn–N optimized oxide scale

Journal of Materials Research and Technology
The effect of Mn–N on the oxidation behavior and microstructure evolution of a novel nickel-saving Fe–26Cr–4Ni-0.3C dual-phase heat-resistant cast steel at 900 °C was investigated.
Xiaokun Pan, Zixuan Zhu, Chaolei Zhang, Ran Cheng, Yongjin Wang, Renbo Song   +5 more
doaj   +1 more source