Results 51 to 60 of about 63,255 (253)

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

Surface amorphization enables robust catalyst for industrial-level low-potential electrooxidation reactions

Nature Communications
Electrooxidation of pollutants at potentials near or below the thermodynamic hydrogen evolution potential offers transformative opportunities for energy-efficient pollutant valorization and diverse energy devices.
Jian Chen, Xin Wang, Chang Sun, Zheng Li, Yangen Zhou, Zhenhua Li, Yumin Qian, Mengran Wang, Simin Li, Yanqing Lai, Shuangyin Wang   +10 more
doaj   +1 more source

Porous MgO-based ceramics synthesized by the volume expansion effect: Designing and performance

Journal of Materials Research and Technology
High-quality porous ceramics are extremely attractive in terms of energy conservation and consumption reduction, and thus are one of the research hotspots pursued in recent years. For this purpose, porous MgO-based ceramics with outstanding thermal shock
Xinming Ren, Zhihui Wang, Wei Ji, Shengying Hou, Shuli Sun, Gaofeng Fu, Chengji Deng, Beiyue Ma   +7 more
doaj   +1 more source

A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy

International Journal of Electrochemical Science, 2016
In order to further improve the corrosion resistance of the chromium-free Ti-Zr conversion coating on 2024 aluminum alloy (AA2024), a novel Ti-Zr based conversion coating on AA2024 is successfully prepared by introducing the cathodic inhibitor of ...
Q.P. Li, Z.Q. Yan, Q. Xu, B. Zhang, S. Sun, J.G. Liu, C.W. Yan   +6 more
doaj   +1 more source

Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels [PDF]

, 2017
Cr – Mn – Mo – Ni pressure vessel steels containing 0.54 and 1.55% Si are studied. Metallographic and fractographic analyses of the steels after tempering at 650 and 700°C are performed.
A Gustafson, A. A. Shirzadi, CA Hippsley, CJ Moss, D Delagnes, I. G. Rodionova, J Yu, J. A. Qiu, JA Qiu, JH Bulloch, JV Bee, K Maruyama, K. M. Wu, KDH Bhadeshia, L. H. Ruan, NS Cheruvu, P Bowen, R Pilkington, RA Mesquita, RL Bodnar, S Ortner, SM Bruemmer, T Iwadate, WM Garrison, WS Owen, WS Owen, Y Nishizaka, Z Qu   +27 more
core   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Effect of Severe Torsion Deformation on Structure and Properties of Titanium–Nickel Shape Memory Alloy

Metals, 2023
In the present work, the possibility of applying severe torsion deformation (STD) to a bulk near-equiatomic NiTi shape memory alloy in order to accumulate super-high strain and improve mechanical and functional properties was studied.
Victor Komarov, Roman Karelin, Vladimir Cherkasov, Vladimir Yusupov, Grzegorz Korpala, Rudolf Kawalla, Ulrich Prahl, Sergey Prokoshkin   +7 more
doaj   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Wettability of Polar and Apolar Liquids on Metal Surfaces

Metals
The wettability of metal surfaces by different oils and water is a multifaceted phenomenon with significant implications for industrial processes, including lubrication, corrosion protection, and fluid transport; an understanding of the process is ...
Mohanad Khairi, Zoltán Erdélyi, Peter Baumli   +2 more
doaj   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source