Article
Nanoscience & Nanotechnology
Yingming Tu, Xuefeng Liu, Wenjing Wang, Weiliang Zhang, Qihang Feng
Summary: Cu-Ti alloys prepared by the ARB-DD process exhibit improved mechanical strength and electrical conductivity after deformation-aging treatment, which is attributed to the formation of multi-scale substructures and the increased Cu4Ti particles.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
J. Q. Wang, L. S. Jiao, T. Cao, J. H. Li, D. L. Cui, Y. Q. Chen
Summary: The influence of annealing time on the recrystallization evolution and mechanical behavior of Zr702 alloy obtained by accumulative roll bonding (ARB) has been investigated. Results show that with the increase of annealing time, the bonding degree of the ARB interface gradually improves due to increased diffusion driving force. Almost complete recrystallization and excellent mechanical properties can be achieved with an annealing time of 20 min, and the evolution path of the microstructure with annealing time can be described.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Runrun Xu, Ningning Liang, Limin Zhuang, Dajie Wei, Yonghao Zhao
Summary: This study presents a method to fabricate Al/Cu laminated composites with improved strength and ductility through accumulative roll bonding (ARB) and intermediate annealing. The ARB process decreases layer thicknesses and grain sizes, improving Vickers micro-hardness, while intermediate annealing significantly enhances tensile strength and elongation properties by improving interfacial metallurgical bonding and continuity of layers.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Yingming Tu, Wenjing Wang, Xuefeng Liu, Qihang Feng
Summary: A new process called accumulative roll bonding-deformation diffusion (ARB-DD) with subsequent deformation diffusion heat treatment has been proposed to improve the composition homogeneity of alloys. Compared to the conventional accumulative roll bonding-diffusion heat treatment (ARB-DHT) process, the ARB-DD process promotes element diffusion through the synergistic effects of deformation and thermal effects, leading to enhanced composition homogenization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
H. Parvin, M. Kazeminezhad
Summary: The strength evolution of metal matrix composite during processing/cycling via accumulative roll bonding (ARB) is analyzed using a twofold model. The evolution consists of monolithic-like behavior and composite-like behavior, with each behavior making a different contribution. Particle effectiveness is lowest at the beginning of the cycling process and reaches its highest value during the later cycles. The onset of declining monolithic-like behavior is observed at a critical strain, and there is a minimum strain at which composite-like behavior dominates.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yingming Tu, Weiliang Zhang, Wenjing Wang, Qihang Feng, Xuefeng Liu
Summary: The preparation of Cu-Ti alloys with homogenous elemental distribution is important for engineering applications. A diffusion model is established to predict the morphological evolution and diffusion heat treatment time in the accumulative roll bonding-deformation diffusion (ARB-DD) process. The model shows good agreement with experimental results, with an absolute error of prediction within 9% and an average error of about 4.4%. It demonstrates the achievement of synergistic control of elemental diffusion behavior and the importance of effective diffusion activation in determining the accuracy of the model.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xinda Sun, Xiaojie Hao, Jinfeng Nie, Yong Fan, Yuyao Chen, Sida Liu, Xiangfa Liu, Yonghao Zhao
Summary: In this study, a heterostructured Al-AlN/Al-Mg laminated composite was successfully prepared and its microstructural evolution and mechanical properties were investigated. The results showed that the distribution of AlN particles was optimized to avoid stress concentration and the matrix grains were refined significantly. The composite exhibited enhanced tensile strength and ductility at low temperature due to the hetero-deformation induced stress.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Materials Science, Multidisciplinary
Mahmoud Ebrahimi, Qudong Wang
Summary: Accumulative roll-bonding (ARB) is a suitable severe plastic deformation technique that has significant impact in both scientific and industrial fields. This review paper focuses on the ARB method, its newly developed techniques, and the production and properties of multi-component and composite materials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Mehran Tamjidi Eskandar, Ali Parvizi, Davood Rahmatabadi, Ramin Hashemi
Summary: The study found that Al/Cu composites produced by the asymmetric accumulative roll bonding process exhibit significantly higher mechanical properties compared to individual aluminum and copper. As the roller diameter ratio (R-d) increases, the bond strength and hardness of the Al/Cu interface improve due to enhanced plastic deformation rate and surface expansion. However, the hardness along the thickness was found to be very heterogeneous due to the uneven distribution of strain and strain hardening.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Chemistry, Physical
Junqing Guo, Wanting Sun, Nan Xiang, Fuxiao Chen
Summary: The interfacial bonding and fracture behavior of an ARB-processed AZ63 sheet were studied through electron microscopic analysis. The average grain size of AZ63 Mg alloy processed by ARB was refined from 12.8 μm to 5.7 μm indicating the occurrence of dynamic recrystallization. The microstructure became more uniform with increasing ARB passes, but the further refinement of grain size was inhibited due to the generation of a coherent eutectic plane at the interface.
Article
Metallurgy & Metallurgical Engineering
Qing-lin Du, Chang Li, Xiao-hui Cui, Charlie Kong, Hai-liang Yu
Summary: Ultrafine-grained AA1060 sheets were fabricated via five-cycle accumulative roll bonding (ARB) and subsequent three-pass cold rolling or cryorolling, leading to further grain refinement. Lower rolling temperatures resulted in finer grain sizes, with cryorolled sheets exhibiting higher strength and ductility compared to cold-rolled sheets.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Danielle Cristina Camilo Magalhaes, Osvaldo Mitsuyuki Cintho, Vitor Luiz Sordi, Andrea Kliauga
Summary: Tougher and stronger alloys are desired for structural applications, and in this study, researchers successfully achieved a simultaneous increase in strength and ductility by developing a heterogeneous structure. By combining soft and coarse-grained 1050 Al layers with fine-grained and precipitation hardened 7050 Al layers, the researchers were able to enhance the material's strength and ductility. Additionally, it was found that higher interface density improved the material's strength-ductility combination.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Yingming Tu, Xuefeng Liu, Wenjing Wang, Weiliang Zhang, Qihang Feng
Summary: Cu-Ti alloys were fabricated using the accumulative roll bonding-diffusion alloying process. The change in electrical conductivity was studied by analyzing the evolution of grain boundaries during the deformation-aging process, and the underlying mechanism was revealed. The results showed that annealing twins were formed in the primary deformation-aged alloys, with the twin boundaries primarily consisting of coherent sigma 3 grain boundaries. After secondary deformation-aging treatment, the density increased and the twin boundaries transformed into incoherent ones. An electrical conductivity of 13.1% IACS was achieved for the alloy at a primary aging temperature of 350 degrees C and a secondary aging temperature of 315 degrees C. Higher primary aging temperature facilitated the evolution of grain boundaries and the formation of coherent sigma 3 grain boundaries. Deformation treatment after primary aging treatment reconfigured the distribution and induced migration of grain boundary strain. The thermal effect of secondary aging process transformed coherent sigma 3 grain boundaries into incoherent ones. Lower secondary aging temperature improved the stability of incoherent I3 grain boundaries, reduced the percentage of random grain boundaries effectively, and disrupted the network connectivity. This decreased the degree of energy decay in the electron migration process and improved the electrical conductivity of the alloys. The accumulative roll bonding-diffusion alloying process, which utilizes repetitive deformation and thermal effects to induce grain boundary evolution and regulate the types and content of specific grain boundaries, is an effective method to control the electrical conductivity of Cu-Ti alloys.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Majid Naseri, Mohsen Reihanian, Ahmad Ostovari Moghaddam, Davood Gholami, Seyedmehdi Hosseini, Mohammad Alvand, Ehsan Borhani, Evgeny Trofimov
Summary: In this study, a strategy was proposed to achieve microstructural refinement and outstanding strength-ductility synergy in Al/Brass composites through cross accumulative roll bonding (CARB). The CARB processed composite exhibited higher tensile strength and elongation compared to the ARB processed specimen, along with unique crystallographic texture features.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Witold Chrominski, Malgorzata Lewandowska
Summary: Thermo-mechanical treatment is an important tool for designing properties of aluminum alloys. This study investigates a complex procedure to increase the mechanical strength of Al-Mg-Si alloy beyond conventional levels by introducing interlayer boundaries through plastic deformation and healing the microstructure while maintaining deformation-related features. The precipitation processes vary depending on the placement of solution treatment, but the final hardness is always increased compared to typical heat treatment. Observations using transmission electron microscope study the variations in nucleation and growth of strengthening phases.
MATERIALS & DESIGN
(2022)
Article
Geology
Martin A. Wells, Erick R. Ramanaidou, Md Zakaria Quadir, Malcolm Roberts, Julien Bourdet, Michael Verrall
Summary: By investigating the morphology and chemical composition of chromite in the Goro lateritic nickel deposit, this study reveals the melt conditions during ophiolite formation and the role of chromite in the formation of the oxide zone.
ORE GEOLOGY REVIEWS
(2022)
Article
Environmental Sciences
JinKiat Chew, Stephen Joseph, Guanhong Chen, Yuyue Zhang, Longlong Zhu, Minglong Liu, Sarasadat Taherymoosavi, Paul Munroe, Genxing Pan, Lianqing Li, Rongjun Bian, Xiaorong Fan, David R. G. Mitchell
Summary: This study found that micron-sized biochar-based compound fertilisers (mBCF) can significantly enhance the growth and nutrient uptake of rice seedlings. The application of mBCF increased the shoot biomass of rice seedlings by 33% and improved the accumulation rates of nitrogen, phosphorus, potassium, iron, and other nutrients. Additionally, mBCF treatment affected the expression levels of nutrient transporter genes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Coatings & Films
Musharaf Abbas, Arslan Khalid, Gregory M. Smith, Paul R. Munroe
Summary: This study investigates the formation behavior of Ni particles plasma sprayed onto AISI 1008 mild steel and 316 austenitic stainless steel substrates to compare the splat formation on both surfaces. Analytical techniques were used to analyze the characteristics of the splats formed on both substrates. Most of the observed splats were halo type splats driven by Rayleigh-Taylor instabilities. A linear relationship was found between the size of the splats' central core and their outer ring of debris, which was distinct for each substrate. Diffusion analysis showed a higher degree of diffusion across the interface between splat and stainless steel substrate, suggesting a better bond efficiency for stainless steel. Cross-sectional observations and theoretical calculations showed evidence of substrate melting and metallurgical bonds for both mild steel and stainless steel substrates.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Chuhan Sha, Zhifeng Zhou, Zonghan Xie, Paul Munroe
Summary: A series of CoCrNiAlTi coatings were deposited on M2 steel substrates using DC magnetron sputtering. By adjusting the substrate bias voltage, the composition and microstructure of the coatings were modified. The coating deposited at -80V exhibited the highest hardness and damage tolerance, possibly due to the presence of nanotwins and dual-phase microstructure.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Si-Yu Hu, Stephen J. Barnes, Anais Pages, Michael Verrall, Joanna Parr, Zakaria Quadir, Louise Schoneveld, Ray Binns
Summary: Seafloor hydrothermal chimneys from back-arc basins are important for hosting metals such as Cu, Zn, Pb, Ag, and Au. Recent studies reveal complex mineralogy and growth processes in chalcopyrite-lined conduits, reflecting varied physicochemical conditions. This study utilized advanced microscopy techniques to uncover the detailed growth processes and mineral assemblages, shedding light on the formation mechanisms of native gold and the control factors.
AMERICAN MINERALOGIST
(2022)
Article
Chemistry, Physical
Arslan Khalid, Musharaf Abbas, Yongang Zhang, Margaret Hyland, Paul R. Munroe
Summary: This study investigates the bonding and adherence of spray particles to the substrate in thermal spray coatings. The addition of chromium to nickel promotes improved adherence and modifies the formation of the spray particles.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuang Peng, Jiang Xu, Zong-Han Xie, Paul Munroe
Summary: This study engineered a TiZrHfMoW refractory high entropy alloy (RHEA) nanocrystalline coating onto a commercially pure Ti substrate to improve its corrosion resistance for potential application in proton exchange membrane fuel cells (PEMFCs). The results showed that the RHEA coating exhibited enhanced corrosion resistance and maintained a stable passive state.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rumana Akhter, Avi Bendavid, Paul Munroe
Summary: The application of a negative substrate bias in physical vapor deposition has significant effects on the surface morphology, microstructure, and mechanical characteristics of ceramic-based coatings. Increasing bias voltage results in a transition from fine columnar grains to refined equiaxed grains, accompanied by enhanced hardness and reduced defect density.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
M. S. Hazarabedian, N. Haghdadi, S. Primig, M. Lison-Pick, M. Z. Quadir, M. Ferry, M. Iannuzzi
Summary: This study focuses on the investigation of intergranular phases in nickel alloy 725 and their impact on hydrogen embrittlement resistance. It was found that the abundant formation of the F phase compromises the alloy's resistance to hydrogen embrittlement. The distribution of grain boundary planes was analyzed and a direct correlation between the F phase precipitation and the population of grain boundaries terminated on (111) planes was observed. The study suggests that controlling the thermomechanical and thermal treatments can improve the resistance of the alloy to hydrogen embrittlement.
Article
Chemistry, Physical
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: In this study, the hydrogen storage mechanism on the CuNi co-doped MgH2(101) surface was investigated using the first-principles approach. The results showed that the most stable adsorption site for hydrogen on the surface is above the Ni atom, and there is substantial charge exchange between the hydrogen molecule and Ni atom.
Article
Engineering, Environmental
Yang Wang, Stephen Joseph, Xiang Wang, Zhe H. Weng, David R. G. Mitchell, Mitchell Nancarrow, Sarasadat Taherymoosavi, Paul Munroe, Guitong Li, Qimei Lin, Qing Chen, Markus Flury, Annette Cowie, Olivier Husson, Lukas Van Zwieten, Yakov Kuzyakov, Johannes Lehmann, Baoguo Li, Jianying Shang
Summary: Biochar amendments increased total soil carbon by 71%, 182%, and 210% for B30, B60, and B90, respectively. The application of biochar at different rates significantly increased the subsoil inorganic carbon (SIC), mainly occurring in the subsoil below 1 m. The study provided critical knowledge on the impact of biochar application on carbon stocks in subsoil in the long term.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ashok Meghwal, Samuel Pinches, Ameey Anupam, Lionel Lie, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: In this study, a near-dense and crack-free CoCrFeNi medium entropy alloy (MEA) coating was fabricated using extreme-high-speed laser material deposition (EHLA). The coating retained a single-phase face-centered cubic (FCC) structure, and showed anisotropic mechanical deformation behavior at a localized level. Microstructure-mechanical property correlations confirmed the homogeneous mechanical properties of the coating at the bulk level.
Article
Nanoscience & Nanotechnology
Ashok Meghwal, Surinder Singh, Soumya Sridar, Wei Xiong, Colin Hall, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: A novel high entropy alloy-medium entropy alloy composite coating was designed using a CALPHAD approach, which showed potential for industrial applications. The experimental results demonstrated that the composite coating had higher hardness and superior wear resistance, making it promising for structural applications.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Ricardo Santamaria, Ke Wang, Mobin Salasi, Mariano Iannuzzi, Michael Y. Mendoza, Md Zakaria Quadir
Summary: This study investigates the stress corrosion cracking (SCC) behavior of type 316L stainless steel (SS316L) produced with sinter-based material extrusion additive manufacturing (AM). The study focuses on the influence of sintered microstructures on SCC initiation and crack-branching susceptibility. Results showed that sinter-based AM SS316L was more susceptible to SCC initiation than solution-annealed (SA) wrought SS316L but more resistant than cold-drawn (CD) wrought SS316L in terms of crack initiation time. Sinter-based AM SS316L also exhibited lower crack-branching tendency compared to the two wrought SS316L counterparts.
Article
Chemistry, Physical
Ricardo Santamaria, Mobin Salasi, William D. A. Rickard, Kod Pojtanabuntoeng, Garry Leadbeater, Mariano Iannuzzi, Steven M. Reddy, Md Zakaria Quadir
Summary: There is a growing interest in using selective laser melting (SLM) for metal additive manufacturing. However, our understanding of SLM-printed stainless steel is limited due to complex process variables. This study found discrepancies in crystallographic textures and microstructures compared to previous literature. The as-printed material showed macroscopic asymmetry in structure and crystallographic texture, with specific low-angle boundary features being identified as non-crystallographic.
