Article
Materials Science, Multidisciplinary
Hossein Aghamohammadi, Seyed Jamal Hosseinipour, Sayed Mahmood Rabiee, Roohollah Jamaati
Summary: The study found that hot-rolled AZ31 alloy exhibited ultra-fine grains after 60% deformation, as well as activation of various dynamic recrystallization mechanisms. As the thickness decreased, the grain size decreased, the intensity of basal texture increased, and accordingly, the hardness increased.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Tao Zhu, Xinghua Gong, Ying Xiong, Xiaxia Hu
Summary: By investigating the corrosion behavior of different orientation samples of magnesium alloy immersed in simulated body fluid, it was found that the P-TD sample exhibited the best corrosion resistance, while the P-ND30 and P-ND60 samples showed similar corrosion behavior. A degradation evolution model was established, and the influence of initial orientation on corrosion behavior was discussed.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Tao Zhu, Aoxuan Zhang, Yongshui Shen, Xinghua Gong, Ying Xiong
Summary: This study investigated the corrosion behavior of rolled AZ80 magnesium alloy in different orientations, with the results showing that the TD sample exhibited better corrosion performance with mainly uniform corrosion, while severe localized corrosion occurred in the ND sample.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Nanoscience & Nanotechnology
Jingkai Feng, Dingfei Zhang, Hongjun Hu, Yang Zhao, Xia Chen, Bin Jiang, Fusheng Pan
Summary: During semi-solid extrusion, AZ31 magnesium alloy exhibits a higher nucleation rate for new fine grains and limited twinning activation, resulting in a homogeneous microstructure and improved mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Qi Wu, Baoxing Yu, Peng Zhou, Tao Zhang, Fuhui Wang
Summary: The microstructure and corrosion resistance of phosphate conversion coatings on different surfaces of rolled AZ31 magnesium alloy vary due to differences in grain orientation. The electrochemical reactivity and nucleation rate play a key role in influencing the compactness and corrosion resistance of the coatings.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Lifei Wang, Ye Lu, Hua Chai, Guangsheng Huang, Xinwei Fu, Xiaoqing Cao, Hua Zhang, Hongxia Wang, Maurizio Vedani
Summary: The study found that the critical point where the corrosion rate changes is at 12% strain level, before which the corrosion rate first increases and then decreases. The antagonistic effect of basal structure and dislocation aggregation plays a crucial role in corrosion resistance. With an increase in strain, the number of twins increases, causing a continuous decrease in corrosion resistance.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Tao Zhu, Yi Yu, Jie Yang, Yongshui Shen, Liuyong He, Ying Xiong
Summary: The study showed that specimens with different orientations exhibited differences in corrosion performance in simulated body fluid, with electrochemical corrosion resistance decreasing with increasing flow rate. Localized corrosion was observed in specimens immersed in SBF solution, with increased flow rate intensifying the corrosion.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Hossein Aghamohammadi, Sayed Mahmood Rabiee, Seyed Jamal Hosseinipour, Roohollah Jamaati
Summary: Magnesium has unique biomedical properties such as biocompatibility and biodegradability, making it suitable for biomedical applications. This study investigates the relationship between the microstructure and crystalline texture of AZ31 magnesium alloy substrate, the morphology of calcium phosphate coating, and the corrosion behavior of the material. The results show that apatite crystals can form and grow on the surfaces of the biomimetic coating. The coating morphology is influenced by the microstructure and crystalline texture of the substrate. The corrosion resistance of the coated specimens is significantly improved compared to the uncoated specimens.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Yuxiang Liu, Michele Curioni, Shiyun Dong, Zhu Liu
Summary: In this study, the biodegradable Mg-1Ca alloy was modified using a KrF excimer laser, and the degradation behavior of the alloy before and after laser treatment was investigated. The results showed that the corrosion resistance of the alloy was improved after laser treatment, and a two-layer structure was formed.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Mohabbat Amirnejad, Mohammad Rajabi, Roohollah Jamaati
Summary: The study investigates the effect of crystallographic texture and microstructure on the biocorrosion behavior, wettability, and biocompatibility of Ti6A14V alloy. The results demonstrate that the different crystallographic planes and surface energy contribute to variations in water contact angle and corrosion rate, thus affecting the performance and biocompatibility of the biomaterial.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Seyyed Ali Ashraf Talesh, Mohammad Azadi
Summary: This study investigates the fatigue behavior of AM60 magnesium alloys, comparing the as-received samples with pre-corroded specimens in simulated body fluid. The results show that pre-corrosion treatment significantly affects the fatigue lifetime and fracture mechanisms.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Min-jie Liang, Jie Zheng, Huan Liu, Bao-xing Yao
Summary: This study investigates the microstructure, texture evolution, and mechanical properties of AZ31 magnesium alloy during the cyclic expansion extrusion with the asymmetrical extrusion cavity (CEE-AEC) process. The results show that after 3 passes, the microstructures are refined and the textures are deflected, leading to significant improvements in the mechanical properties of the alloy.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Multidisciplinary Sciences
Qingchun Zhu, Yangxin Li, Fuyong Cao, Dong Qiu, Yao Yang, Jingya Wang, Huan Zhang, Tao Ying, Wenjiang Ding, Xiaoqin Zeng
Summary: The authors have developed a high-strength magnesium alloy with significantly improved mechanical properties and corrosion resistance. The alloy features a low corrosion rate, high yield strength, and moderate tensile elongation, making it competitive compared to other magnesium alloys. The development of a thin and dense protective film and refinement of grains contribute to the high strength and good ductility of the alloy. These findings are expected to inspire the design of next-generation high-performance magnesium alloys.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Panjun Wang, Lingwei Ma, Xuequn Cheng, Xiaogang Li
Summary: The study found that grain refinement can decrease corrosion resistance in one type of solution but increase it in another; grain refinement can induce self-passivation, and the presence of texture can result in anisotropic corrosion behavior in low alloy steels.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Metallurgy & Metallurgical Engineering
Mohammadreza Rahimi, Rouhollah Mehdinavaz Aghdam, Mahmoud Heydarzadeh Sohi, Ali Hossein Rezayan, Maryam Ettelaei
Summary: This study investigates the impact of anodizing time and heat treatment on the morphology, phase, and corrosion resistance of formed coatings. It was found that the 10-minute anodized sample exhibited the best corrosion resistance, while the 30-minute anodized sample showed the lowest corrosion rate among the heat-treated samples.
ANTI-CORROSION METHODS AND MATERIALS
(2021)
Article
Engineering, Biomedical
Kiana Kiakojoori, Farhood Najafi, Maryam Torshabi, Sohrab Kazemi, Sayed Mahmood Rabiee, Hanieh Nojehdehian
Summary: This study describes the synthesis and characterization of a calcium phosphate cement (CPC) with polyetheretherketone/poly (lactic-co-glycolic) acid (PEEK/PLGA) microparticles containing quercetin. The addition of quercetin-containing microparticles enhanced the compressive strength and controlled the drug release of CPC, while also up-regulating the expression of osteoblastic differentiation genes.
BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Amin Babapour, Seyed Jamal Hosseinipour, Roohollah Jamaati, Majid Abbasi
Summary: The main objective of this study was to investigate the effects of asymmetric cross-rolling and initial annealing on the microstructure, crystallographic texture, and magnetic behavior of a low-silicon steel specimen with different amounts of antimony. The results showed that adding antimony reduced the average grain size, and initial annealing increased the grain size and shear bands. Additionally, initial annealing and antimony addition improved the texture parameter and magnetic properties of the steel samples.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Nanoscience & Nanotechnology
Fatemeh Khorasani, Roohollah Jamaati, Hamed Jamshidi Aval
Summary: The influence of large-strain single-roll drive rolling and intercritical annealing on the microstructure evolution and mechanical behavior of AISI 1008 steel was investigated. The fabricated dual-phase (DP) steels exhibited equiaxed and homogeneously distributed fine ferrite grains and martensite islands. The hardness and strength of dual-phase steels had a good linear correlation to the fraction of martensite, while the toughness and ductility were improved by increasing the temperature of intercritical annealing.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Amin Babapour, Seyed Jamal Hosseinipour, Roohollah Jamaati, Majid Abbasi
Summary: This study investigated the effect of Sb and initial annealing before single-roll drive rolling on the microstructure, crystallographic texture, and magnetic behavior of 1.2 wt% Si steel. The results showed that the addition of Sb decreased the mean grain size and positively affected the desired texture. Furthermore, initial annealing resulted in higher texture intensity compared to samples without initial annealing.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Fahimeh Yazdani Samani, Sayed Mahmood Rabiee, Roohollah Jamaati, Sara Bagherifard
Summary: Bioactive glass coating of SiO2-CaO-P2O5 was synthesized and deposited on shot peened stainless steel AISI 316L substrates through electrophoretic deposition. The effect of shot peening on the electrophoretic coating properties and performance was investigated. The coated samples showed decreased thickness and modified wettability and corrosion resistance due to shot peening. Additionally, the grain size of the coating varied among the samples.
CERAMICS INTERNATIONAL
(2023)
Article
Cell Biology
Heather Thorne, Lisa Devereux, Jason Li, Kathryn Alsop, Liz Christie, Courtney T. van Geelen, Nikki Burdett, Kathleen Pishas, Noel Woodford, Jodie Leditschke, Mohamed H. M. A. Izzath, Kate Strachan, Gregory Young, Rufaro D. Jaravaza, Mohammed S. Madadin, Melanie Archer, Joanna Glengarry, Linda Iles, Ajith Rathnaweera, Clare Hampson, Khamis Almazrooei, Michael Burke, Pradeep Bandara, David Ranson, Essa Saeedi, Orla McNally, Linda Mileshkin, Anne Hamilton, Sumitra Ananda, George Au-Yeung, Yoland Antill, Shahneen Sandhu, Peter Savas, Prudence A. Francis, Stephen Luen, Sherene Loi, Ross Jennens, Clare Scott, Kate Moodie, Margaret Cummings, Andrew Reid, Amy McCart Reed, David Bowtell, Sunil R. Lakhani, Stephen Fox
Summary: This study aims to examine the metastatic patterns of breast, ovarian, and prostate cancer in germline BRCA1/2 mutation carriers and non-carriers through a rapid autopsy program. It found significant differences in the patterns of metastases in breast and ovarian cancer between BRCA1/2 carriers and non-carriers, while no significant differences were observed in prostate cancer. The findings have implications for clinical diagnostic imaging in monitoring metastases.
Article
Materials Science, Ceramics
Fahimeh Yazdani Samani, Sayed Mahmood Rabiee, Roohollah Jamaati, Sara Bagherifard
Summary: In order to improve the biocompatibility of AISI 316L, a bioactive glass (BG) coating of SiO2-CaO-P2O5 was applied using electrophoretic deposition method. Shot peening was conducted to refine the metal grain and improve the fatigue properties. The effects of shot peening parameters on the properties of the BG coating were investigated. The results showed that the coating thickness decreased and the water contact angle decreased after shot peening, indicating improved corrosion resistance.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Hamid Ghorbani, Roohollah Jamaati
Summary: In this study, a high-strength and high-toughness Al-Zn-Mg-Cu/pure Al laminated composite with a heterogeneous microstructure was manufactured using the compression bonding process. The four-layer sample showed strong bonding between layers and exhibited significantly increased strength and toughness compared to the as-received alloy. On the other hand, the three-layer sample had weak bonding between layers and showed a large extent of delamination. Both samples displayed a heterogeneous fracture behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Metallurgy & Metallurgical Engineering
Fatemeh Khorasani, Roohollah Jamaati, Hamed Jamshidi Aval
Summary: The effect of intercritical annealing time on the microstructure and mechanical properties of dual-phase steel processed by large-strain asymmetric cold-rolling is investigated. It is found that increasing intercritical annealing time up to 10 min leads to an increase in martensite fraction and a decrease in carbon content of the martensite phase. The short-term intercritical annealing eliminates the yield point phenomenon. However, intercritical annealing at 860 degrees C for 20 min leads to the reoccurrence of a yield point phenomenon. Increasing intercritical annealing time to 10 min improves yield strength and ultimate tensile strength, but the strength decreases sharply after 20 min. Ductile failure occurs at the center of the fracture surfaces while shear failure occurs at the edges.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Fatemeh Khorasani, Roohollah Jamaati, Hamed Jamshidi Aval
Summary: The effect of large-strain cold rolling followed by intercritical annealing on the microstructure and mechanical properties of plain low-carbon steel was studied. The grain size of ferrite decreased from 38 μm to about 4 μm in the dual-phase steel. A weblike structure of martensite was created in the dual-phase steel, and it exhibited continuous yield behavior without a distinct yield point phenomenon. By introducing weblike martensite and refining α grains, the yield strength, ultimate tensile strength, and tensile toughness significantly increased. The dual-phase steel composed of weblike martensite and fine-grained ferrite showed extraordinary strength-ductility-toughness balance and potential applications in the automotive industry.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Ebrahim Tolouie, Roohollah Jamaati
Summary: This study investigates the effect of rolling reduction on the microstructure, crystallographic texture, and mechanical properties of the AZ91 alloy. The results show that increasing the rolling reduction significantly enhances the hardness and tensile strength. The formation of twins and basal texture during rolling plays a crucial role in the strength-ductility combination of the material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Hossein Aghamohammadi, Sayed Mahmood Rabiee, Seyed Jamal Hosseinipour, Roohollah Jamaati
Summary: Magnesium has unique biomedical properties such as biocompatibility and biodegradability, making it suitable for biomedical applications. This study investigates the relationship between the microstructure and crystalline texture of AZ31 magnesium alloy substrate, the morphology of calcium phosphate coating, and the corrosion behavior of the material. The results show that apatite crystals can form and grow on the surfaces of the biomimetic coating. The coating morphology is influenced by the microstructure and crystalline texture of the substrate. The corrosion resistance of the coated specimens is significantly improved compared to the uncoated specimens.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Fatemeh Talebi, Roohollah Jamaati, Seyed Jamal Hosseinipour
Summary: This study investigates the impact of cold single-roll drive rolling as a low-cost technique on the microstructural evolution and mechanical properties of AISI1045 sheet. The results show that the rolling deformation leads to grain refinement and improved homogeneity in the microstructure. As the rolling reduction increases, the yield and tensile strength are significantly enhanced. Additionally, increasing strain contributes to work hardening and microstructural refinement.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Hamid Ghorbani, Roohollah Jamaati
Summary: This study investigated the effect of compression bonding temperature on the microstructure and strength-ductility balance of AA7075 alloy. The results showed that increasing compression temperature led to improved bonding quality and different restoration mechanisms. The hardness and mechanical properties of the alloy were affected by the compression temperature.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Hanieh Solouki, Roohollah Jamaati, Hamed Jamshidi Aval
Summary: This work investigated the effect of strain path on the strain distribution, microstructural evolution, crystallographic texture, and mechanical behavior of electrolytic tough-pitch copper through simulation and experimental procedures. The results showed that the asymmetric cross-rolling process resulted in a more uniform shear strain distribution compared to the asymmetric unidirectional rolling process. Both processes improved particle distribution in the matrix, but the AUR sample had slightly more uniform particle distribution. The primary grain shape differed between the two processes, with the AUR copper having straight grains and the ACR sample having zigzag grains. The AUR sample had a higher dislocation density and strength, while the ACR sample had better microhardness profile uniformity and ductility.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
