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Wang, Yawen (author), Hou, Longgang (author), Su, Hui (author), Tian, Qingkun (author), Yu, Kangcai (author), Eskin, Dmitry (author), Katgerman, L. (author), Zhuang, Linzhong (author)The alloy design and homogenization processes are intimately associated with the microstructure, phase composition and performance for Al-Zn-Mg-Cu alloys. The microstructures and phase composition of a series of Al-Zn-Mg-Cu alloys before and after the homogenization treatments were investigated along with thermodynamic calculation to...journal article 2022
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Yin, Kangting (author), Jiang, Yaqing (author), He, Hui (author), Ren, Jie (author), Li, Z. (author)In this paper, fresh (setting and rheology) and hardened properties (strength and shrinkage) of one-part alkali-activated slag (AAS) with and without rice straw ash (RSA) are comprehensively investigated. The reaction kinetics and microstructure of the mixtures are characterized by a series of experimental techniques. The results reveal that...journal article 2022
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Zhang, Hongzhi (author), Shao, Yingxuan (author), Zhang, Ning (author), Tawfek, Abdullah M. (author), Guan, Yanhua (author), Sun, Renjuan (author), Tian, Changjin (author), Šavija, B. (author)Engineered cementitious composites (ECCs) belong to a broad class of fibre-reinforced concrete. They incorporate synthetic polyvinyl alcohol (PVA) fibres, cement, fly ash and fine aggregates, and are designed to have a tensile strain capacity typically beyond 3%. This paper presents an investigation on the carbonation behaviour of engineered...journal article 2022
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Shah, V. (author), Sedighiani, K. (author), van Dokkum, J.S. (author), Bos, C. (author), Roters, F. (author), Diehl, M. (author)Predicting microstructure and (micro-)texture evolution during thermo-mechanical processing requires the combined simulation of plastic deformation and recrystallization. Here, a simulation approach based on the coupling of a full-field dislocation density based crystal plasticity model and a cellular automaton model is presented. A...journal article 2022
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Irshad, Muneeb (author), Rafique, Muhammad (author), Tabish, Asif Nadeem (author), Ghaffar, Abdul (author), Shakeel, A. (author), Siraj, Khurram (author), Ain, Qurat ul (author), Raza, Rizwan (author), Assiri, Mohammed Ali (author), Imran, Muhammad (author)In this study, nickel oxide–Y2O3-doped ZrO2 (NiO-YSZ) composite powder as an anode material was synthesized using a cost-effective combustion method for high-temperature solid oxide fuel cell (SOFC). Further, the effects of sintering temperatures (1200, 1300, and 1400 °C) were studied for its properties in relation to the SOFC performance. The...journal article 2022
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Vittorietti, M. (author), Hidalgo Garcia, J. (author), Galan Lopez, J. (author), Sietsma, J. (author), Jongbloed, G. (author)This study proposes a new approach to determine phenomenological or physical relations between microstructure features and the mechanical behavior of metals bridging advanced statistics and materials science in a study of the effect of hard precipitates on the hardening of metal alloys. Synthetic microstructures were created using multi-level...journal article 2022
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Abraham Mathews, J. (author), Sietsma, J. (author), Petrov, R.H. (author), Santofimia, Maria Jesus (author)Bainite to austenite reversal is one of the grain refinement techniques employed in carburized steels. However, chemical segregation influences the homogeneity of the bainitic structure, which is seminal to exploit the advantages associated with austenite reversal. It is therefore important to understand the influence of chemical segregation...journal article 2022
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Skowronek, Adam (author), Cordova-Tapia, Erick (author), Tobajas-Balsera, Pilar (author), Garcia-Mateo, Carlos (author), Jiménez, José A. (author), Petrov, R.H. (author), Grajcar, Adam (author)The novel use of double austempering treatments in a multiphase steel to refine and homogenize the final microstructure and thus improve the material strength have been studied in the 3.3Mn-0.17C-1.6Al-0.23Mo-0.22Si alloy. The microstructural features developed after conventional isothermal austempering treatments at 450 °C and 400 °C were...journal article 2022
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Li, Wei (author), Yi, Liming (author), Jiang, Wen (author), Dong, H. (author), Zhang, Yong (author)This paper presents experimental investigations into the effects of ultrafine blast furnace slag on microstructure improvements against chloride penetration in saturated and unsaturated cementitious systems exposed to cyclic drying–wetting conditions. The hydration kinetics of ultrafine slag powders and pore solution chemistry in slag-blended...journal article 2022
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Tan, C. (author), Wang, S. (author), Yang, Huiru (author), Huang, Qianming (author), Li, Shizhen (author), Liu, X. (author), Ye, H. (author), Zhang, Kouchi (author)Recent reports focus on the hydrogenation engineering of monolayer boron phosphide and simultaneously explore its promising applications in nanoelectronics. Coupling density functional theory and finite element method, we investigate the bowtie triangle ring microstructure composed of boron phosphide with hydrogenation based on structural and...journal article 2022
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Breukelman, H. J. (author), Santofimia, Maria Jesus (author), Hidalgo Garcia, J. (author)The realisation of sophisticated hierarchically patterned multiphase steels has the potential to enable unprecedented properties in engineering components. The present work explores the controlled creation of patterned multiphase steels in which the patterns are defined by two different crystal structures: face centre cubic or fcc (austenite)...journal article 2022
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Sun, Yubo (author), Zhang, Shizhe (author), Rahul, A. V. (author), Tao, Yaxin (author), Van Bockstaele, Filip (author), Dewettinck, Koen (author), Ye, G. (author), De Schutter, Geert (author)This study aims to interpret the early-stage rheology of alkali-activated slag (AAS) paste from microstructure perspectives. The microstructures visualized by cryogenic scanning electron microscopy (cryo-SEM) revealed the essential distinction between hydroxide and silicate-activated slag pastes. The hydroxide-based mixture showed typical...journal article 2022
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Ren, Jie (author), Sun, Hongfang (author), Li, Qun (author), Li, Z. (author), Zhang, Xiaogang (author), Wang, Yanshuai (author), Li, Linfei (author), Xing, Feng (author)In this research, the effects of natural seawater (SW) on the properties of alkali-activated slag/fly ash (AASF) are studied. AASF prepared with deionized water is set as the reference mixture. The results showed that the use of natural SW resulted in a prolonged setting time and lower heat release, but no obvious impact on the flowability of...journal article 2022
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Celada-Casero, Carola (author), Vercruysse, Florian (author), Linke, Bernd (author), Smith, Ali (author), Kok, Piet (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)Quenching & Partitioning (Q&P) steels owe their good strength-ductility combinations to the martensite/austenite (α’/γ) mechanical interactions and to the formation of mechanically-induced martensite (α′<sub>mech</sub>) through the transformation-induced plasticity (TRIP) effect. An essential role is played by carbon, whose...journal article 2022
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Guo, Yuanyuan (author), Wang, Quan (author), LI, H. (author), Gao, Yixun (author), Xu, Xuezhu (author), Tang, Biao (author), Yang, B. (author), Lee, Yi Kuen (author), French, P.J. (author)Fluorescent patterns with multiple functions enable high-security anti-counterfeiting labels. Complex material synthesis and patterning processes limit the application of multifunctional fluorescent patterns, so the technology of in situ fluorescent patterning with tunable multimodal capabilities is becoming more necessary. In this work, an...journal article 2022
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Sun, Renjuan (author), Lu, Wei (author), Tawfek, Abdullah M. (author), Guan, Yanhua (author), Hu, Xinlei (author), Zhang, Hongzhi (author), Ling, Yifeng (author), Šavija, B. (author)The resistance of cracked ECC against chloride ingress is mainly governed by the accumulated crack width of all the cracks rather than the maximum width of multiple cracks. However, most studies focus on the influence of a single fine crackjournal article 2022
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Bakhit, Babak (author), Dorri, Samira (author), Kosari, A. (author), Mol, J.M.C. (author), Petrov, Ivan (author), Birch, Jens (author), Hultman, Lars (author), Greczynski, Grzegorz (author)We study microstructure, mechanical, and corrosion properties of Zr<sub>1-x</sub>Cr<sub>x</sub>B<sub>y</sub> coatings deposited by hybrid high-power impulse/DC magnetron co-sputtering (CrB<sub>2</sub>-HiPIMS/ZrB<sub>2</sub>-DCMS). Cr/(Zr + Cr) ratio, x, increases from 0.13 to 0.9, while B/(Zr + Cr) ratio, y, decreases from 2.92 to 1.81. As...journal article 2022
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Fu, J. (author)Oxide dispersion strengthened (ODS) steels are promising candidates for use as structural materials in the next generation fission and fusion reactors. Compared to conventional ferritic or martensitic steels, ODS steels exhibit improved high-temperature creep properties and irradiation resistance. Favourable properties are mainly attributed to...doctoral thesis 2021
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- Yilmaz, A. (author) doctoral thesis 2021
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Hajizad, O. (author)In this PhD thesis, we investigated possible steel candidates for use in railway crossings in order to reduce the damage in them. Pearlitic R350HT together with Bainitic grades including CrB, B1400 and carbide free B360 were investigated for their mechanical properties such as ultimate strength, yield strength, ductility and hardness. The...doctoral thesis 2021