Article
Materials Science, Multidisciplinary
Yu Chen, Zhihui Cai, Hua Ding, Fenghe Zhang
Summary: The application of a second overlapping pass in friction stir welding prolongs the dynamic recrystallization time, refines the grains in the nugget zone, and enhances vertical material flow; Reversing the welding direction of the second pass increases strain in the nugget zone; The efficiency of grain refinement and mixture of dissimilar materials is significantly elevated during the second overlapping pass.
Article
Materials Science, Multidisciplinary
S. M. MirHashemi, A. Amadeh, F. Khodabakhshi
Summary: Linear dissimilar friction stir welding of metals and polymers has attractive applications in crucial lightweight industries such as automotive, but the substantial differences in physical and mechanical properties can pose challenges. This study proposes an interesting approach to reduce these differences by strengthening the polymer during FSW treatment. By optimizing processing parameters, a nanocomposite weld with superior mechanical performance was formed by introducing SiC nanoparticles into the polymer matrix during dissimilar materials mixing.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
D. S. Chandra Mouli, R. Umamaheswara Rao, A. Raveendra, P. Saritha, G. Parthasarathi
Summary: This study investigated the impact of post-aging treatment on the microstructure and properties of silicon carbide reinforced AA7075 surface composite manufactured by friction stir processing. The surface composites were subjected to aging treatment at different temperatures and durations, and the microstructure, microhardness, and wear resistance were evaluated. The results showed that the properties of the surface composites were enhanced by the refinement of grains, homogeneous distribution of SiC, and precipitation strengthening. However, higher aging temperature and duration led to decreased hardness due to abnormal grain growth and formation of stable precipitated particles in the microstructure. Surface composite samples age-treated at specific conditions exhibited good wear resistance and frictional characteristics. The study demonstrated that the combined use of friction stir processing and aging treatment significantly affected the microhardness and wear resistance of AA7075/SiC surface composite.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Akbar Heidarzadeh, Mousa Javidani, Mohammadreza Mofarrehi, Amir Farzaneh, X-Grant Chen
Summary: Underwater dissimilar friction stir welding of AA6061 and AA7075 aluminum alloys can improve the hardness performance of joints and exhibit different microstructural characteristics. Friction stir welding leads to a reduction in hardness values in all microstructural areas, but in underwater media, the hardness values in thermomechanically affected zones are higher compared to those reported in literature.
Article
Materials Science, Multidisciplinary
Madhav Raturi, Anirban Bhattacharya
Summary: The study investigates the parametric influence on different mechanical properties and corrosion behavior of dissimilar friction stir welds between AA7075-T651 and AA2014-T6. Different tool parameters significantly affect the tensile and bending strength of the welds, while the corrosion susceptibility varies in different regions of the weld joint.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Automation & Control Systems
Seyed Mohammad Mahdi Zamani, Kamran Behdinan, Abolghasem Mohammadpour, Mohammad Reza Razfar, Jamshid Aghazadeh Mohandesi
Summary: The novel 3D model developed investigates the effects of process parameters on friction stir welding of Al-SiC composites in terms of residual stresses and peak temperatures. Different transverse speeds and rotation rates had varying effects on residual stresses, depending on whether peak temperatures exceeded the Al-SiC precipitate dissolution temperature. Temperature distribution profiles confirmed these findings.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Gui-ju Zhang, Cai-yuan Xiao, Olatunj Oladimeji Ojo
Summary: This study investigates the friction stir spot welding of AA2024-T3/AA7075-T6 Al alloys in ambient and underwater environments. The water-cooling effect significantly alters the nugget features and microstructure of the joints. Increasing the tool rotational speed and plunge depth enhances the tensile-shear force of the welded joints.
DEFENCE TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
R. Praveen, S. R. Koteswara Rao, G. Selvakumar, R. Damodaram
Summary: This study investigated the high velocity impact behavior of friction stir welded AA7075-T651 25 mm thick plates. The results showed that the weld nugget, thermo-mechanically affected zone (TMAZ), and heat affected zone (HAZ) of the friction stir welds were able to resist perforation, but different regions had different penetration depths. Steel core projectiles caused higher depth of penetration compared to lead core projectiles. After the ballistic tests, the microstructure of the base material and weld nugget showed no significant change, while the TMAZ and HAZ exhibited severe grain deformation and the formation of adiabatic shear bands.
DEFENCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Robert Kosturek, Janusz Torzewski, Marcin Wachowski, Lucjan Sniezek
Summary: This study focused on the mechanical properties of AA7075-T651 alloy, investigating the influence of welding velocity and tool rotation speed on joint quality. The results showed that joints produced under optimal conditions exhibited high tensile strength and joint efficiency.
Article
Materials Science, Multidisciplinary
Madhav Raturi, Anirban Bhattacharya
Summary: The present study investigates the progression of intergranular corrosion (IGC) in dissimilar AA6061-AA7075 double-sided friction stir welds (DSFSW) with and without secondary heating. Electrochemical corrosion is performed on transverse weld specimens sectioned along the weld line. The results show that secondary heating reduces the accelerated corrosion rate in the AA7075 region by approximately 50%. The double stirred region is less susceptible to corrosion due to the dissolution and breakdown of precipitates. The degree of homogenization during stirring controls the material depletion during corrosion and makes intercalated structure unfavorable in terms of corrosion.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Mechanical
Hao Dinh Duong, Masakazu Okazaki, Tra Hung Tran
Summary: The study revealed that the fatigue life of T-lap joints is significantly influenced by interface morphology, with the geometry and orientation of kissing bonds playing a crucial role in fatigue failure behavior. Fatigue cracks primarily initiated at the weld toe under skin-directional loading test, while they mainly originated at the KBs under stringer-directional loading test. The role of KBs geometry and orientation in enhancing stress intensity factors was also simulated and discussed.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Chemistry, Physical
Venkata Somi Reddy Janga, Mokhtar Awang, Mohd Fadillah Yamin, Uceu F. H. Suhuddin, Benjamin Klusemann, Jorge F. dos Santos
Summary: Refill friction stir spot welding is a solid-state joining process used to produce welds without a keyhole, with a thermo-mechanical model that predicts thermal cycles, material flow, and key factors for joint quality. The model was validated on experimental thermal cycles for thin aluminium sheets and showed good agreement with experimental results, providing insight into the process and its characteristics.
Article
Materials Science, Multidisciplinary
Ahmad Ghiasvand, Eslam Ranjbarnodeh, Seyed Ehsan Mirsalehi
Summary: Friction stir welding (FSW) is an efficient method for joining dissimilar alloys, and this research focuses on investigating the effects of FSW parameters on the defects, microstructure, hardness, and tensile-shear force of lap joints between AZ31-O alloy and Al 5754H-111 alloy. The results show that the highest tensile-shear force is achieved with single-pass welding at a rotation speed of 500 rpm and a travel speed of 45 mm/min. Mechanical properties and intermetallic compound formation in the stir zone are influenced by FSW parameters, and the presence of defects in the stir zone leads to crack initiation and propagation during tensile-shear testing. Fracture in all specimens occurs as a combination of soft and brittle failure.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Nicolas Dimov, Daniel Weisz-Patrault, Alexandre Tanguy, Thaneshan Sapanathan, Julien Benoist, Eric Charkaluk, Aude Simar
Summary: This study investigates the strain and damage analysis of a micro tensile experiment of a AA6061-AA7075 dissimilar friction stir weld. Scanning electron microscopy combined with high resolution digital image correlation is used to analyze the strain fields and damage in the mixed region of the stir zone. The local alloy composition and intermetallic particles are found to affect the strain distribution at different scales.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Ali S. Hammad, Mohamed M. Z. Ahmed, Hong Lu, Adel B. El-Shabasy, Bandar Alzahrani, Mohamed M. El-Sayed, Yongquan Zhang, A. El Megharbel
Summary: The stationary shoulder friction stir welding (SSFSW) technique offers new welding opportunities with a special setup designed in only three parts, showing advantages over previous designs. Different parameters were tested to evaluate the SSFSW setup, leading to sound joints with smooth surface finish. The vertical force applied in SSFSW was found to be a significant parameter in controlling joint properties.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Automation & Control Systems
H. Mohammadzadeh Jamalian, M. Farahani, M. K. Besharati Givi, M. Aghaei Vafaei
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2016)
Article
Automation & Control Systems
M. Tabasi, M. Farahani, M. K. Besharati Givi, M. Farzami, A. Moharami
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2016)
Article
Automation & Control Systems
S. A. Tabatabaei, M. K. Besharati Givi, K. Abrinia, M. H. Rostamlou
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2015)
Article
Automation & Control Systems
Seyed Vahid Safi, Hossein Amirabadi, Mohammad Kazem Besharati Givi, Seyed Majid Safi
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2016)
Article
Automation & Control Systems
Parviz Asadi, Mohammad Kazem Besharati Givi, Mostafa Akbari
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2016)
Article
Engineering, Manufacturing
Reza Abdi Behnagh, Ninggang Shen, Mohammad Ali Ansari, Morteza Narvan, Mohammad Kazem, Besharati Givi, Hongtao Ding
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2016)
Article
Engineering, Manufacturing
M. Saeidi, B. Manafi, M. K. Besharati Givi, G. Faraji
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2016)
Article
Materials Science, Multidisciplinary
Parviz Asadi, Mostafa Akbari, Mohammad Kazem Besharati Givi, Masoud Shariat Panahi
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2016)
Article
Materials Science, Multidisciplinary
Mehdi Saeidi, Reza Abdi Behnagh, Babak Manafi, Mohsen Farahmand Nikoo, Mohammad Kazem Besharati Givi
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2016)
Article
Metallurgy & Metallurgical Engineering
Mohammad Ali Ansari, Reza Abdi Behnagh, Morteza Narvan, Emadoddin Sadeqzadeh Naeini, Mohammad Kazem Besharati Givi, Hongtao Ding
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2016)
Article
Materials Science, Composites
Masoumeh Nazem Salimi, Mehdi Torabi Merajin, Mohammad Kazem Besharati Givi
JOURNAL OF COMPOSITE MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Mostafa Akbari, Parviz Asadi, MohammadKazem Besharati Givi, Parisa Zolghadr
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2016)
Article
Engineering, Manufacturing
Morteza Narvan, Reza Abdi Behnagh, Ninggang Shen, Mohammad Kazem Besharati Givi, Hongtao Ding
JOURNAL OF MANUFACTURING PROCESSES
(2016)
Article
Automation & Control Systems
M. Khoran, P. Ghabezi, M. Frahani, M. K. Besharati
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2015)
Article
Automation & Control Systems
M. Habibnia, M. Shakeri, S. Nourouzi, M. K. Besharati Givi
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2015)
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)