Article
Materials Science, Coatings & Films
Xiaopeng Lu, Jirui Ma, Marta Mohedano, Borja Pillado, Raul Arrabal, Kun Qian, Yan Li, Tao Zhang, Fuhui Wang
Summary: The study showed that sealing plasma electrolytic oxidation (PEO) coatings on AZ91 Mg alloy in calcium nitrate solutions at different pH values can enhance the corrosion resistance of the coatings. Adding SDS facilitates the formation of precipitates, resulting in hydrophobic coatings with poorer paint adhesion but better corrosion resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Rabia Kara, Huseyin Zengin
Summary: This study investigated the microstructure, tribological and electrochemical corrosion properties of plasma electrolytic oxidation (PEO) coatings with various amounts of carbon nanotube (CNT) additives on AZ80 magnesium alloy substrate in silicate-based electrolyte. The results showed that increasing CNT additions led to thicker coating layers. The addition of 0.5 g/L CNT resulted in a slight decrease in roughness before increasing again. The wear resistance of the PEO-coated specimens improved with increasing CNT-incorporation. The best corrosion resistance was achieved with the addition of 0.5 g/L CNT.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Materials Science, Coatings & Films
Jinhe Dou, Jing Wang, Huancai Li, Yupeng Lu, Huijun Yu, Chuanzhong Chen
Summary: Plasma electrolytic oxidation (PEO) is an effective surface treatment technique for enhancing the corrosion resistance of Mg alloy, but the micro-pores and micro-cracks of the PEO coating can limit its protection capability. In this study, a dense Ca3Al2(OH)(12) layer was fabricated on the PEO coating surface using hydrothermal treatment (HT) to create a PEO/HT composite coating, which showed improved bioactivity and corrosion resistance compared to PEO coating and Mg alloy. The growth process of the Ca3Al2(OH)(12) layer on the PEO coating surface was discussed.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Milan Strbak, Daniel Kajanek, Vidzaja Knap, Zuzana Florkova, Jana Pastorkova, Branislav Hadzima, Matej Goraus
Summary: This study investigates the use of plasma electrolytic oxidation (PEO) to enhance the corrosion resistance of magnesium alloy AZ91 in chloride-containing environments. The results show that the PEO coating significantly improves the corrosion resistance compared to the untreated alloy, as observed through electrochemical measurements and SEM analysis.
Article
Materials Science, Coatings & Films
Luyao Xu, Dejian Zhang, Huijuan Su, Peng Yu, Yong Wan, Huilai Sun
Summary: This study investigated the effects of pullulan concentration in electrolyte solutions on the corrosion and tribocorrosion performance of AZ31B magnesium alloys after plasma electrolytic oxidization (PEO) treatment. The results showed that the addition of pullulan enhanced the compactness of the PEO coating, resulting in improved corrosion resistance and anti-tribocorrosion performance. The PEO coating produced in electrolyte solution containing 1.0 g/L pullulan exhibited the best overall performance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chen Ma, Dong Wang, Jinyu Liu, Ning Peng, Wei Shang, Yuqing Wen
Summary: Plasma electrochemical oxidation (PEO) is used to create ceramic coatings on magnesium alloys. This study introduces a new method for in-situ sealing of PEO coatings using four-layer voltage and sol addition. The characterization of the coatings showed decreased porosity and increased thickness, leading to improved corrosion resistance. The self-sealing behavior of PEO was also explained in this article.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Materials Science, Coatings & Films
Chao Yang, Hu Cai, Suihan Cui, Jian Huang, Jiayu Zhu, Zhongcan Wu, Zhengyong Ma, Ricky K. Y. Fu, Liyuan Sheng, Xiubo Tian, Paul K. Chu, Zhongzhen Wu
Summary: This study improves the corrosion resistance of AZ31B magnesium alloy by coating it with a plasma electrolytic oxidation (PEO) film and modifying it with insoluble zinc phosphate. The combination of PEO and zinc phosphate enhances the corrosion resistance and significantly increases the lifetime of the magnesium alloy.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Applied
Tianlu Li, Fengdong Sun, Yun Zhao, Minfang Chen
Summary: In this study, a two-step treatment involving SiO2 gel and hexadecyltrimethoxysilane was used to modify PEO coatings on AZ91 alloy. The treatment effectively sealed the microholes in the PEO coating, resulting in a dense coating with improved hydrophobicity. The corrosion resistance of the substrate alloy was significantly enhanced, making it a promising approach for post-treatment of PEO coatings.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Coatings & Films
Joel da Silva Rodrigues, Leonardo Marasca Antonini, Antonio Alexandre da Cunha Bastos, Jie Zhou, Celia de Fraga Malfatti
Summary: The study applied plasma electrolytic oxidation (PEO) to create a coating on a magnesium alloy, ZK30, enhancing its corrosion resistance and wear resistance for potential orthopedic applications involving friction and wear. This technology has shown promising results in reducing hydrogen release, decreasing susceptibility to localized corrosion, and altering surface topography and chemistry.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Electrochemistry
Yupeng Zhang, Yong Li, You Lv, Xinxin Zhang, Zehua Dong, Lei Yang, Erlin Zhang
Summary: In this study, a rolled Mg-Ag alloy was subjected to plasma electrolytic oxidation (PEO) to achieve a balance between corrosion resistance and antibacterial capability. The PEO process led to improved corrosion resistance and sustained release of silver ions.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Siti Fatimah, Farah Hazmatulhaq, Yujun Sheng, Tri Suhartono, Jeong Moo Oh, Nisa Nashrah, Jee-Hyun Kang, Young Gun Ko
Summary: This study investigates the use of ultrasonic vibration during plasma electrolytic oxidation (PEO) to enhance the corrosion resistance of magnesium alloys. It is found that the presence of ultrasonic waves facilitates the formation of a uniform and dense oxide layer on the alloys through plasma softening, acoustic streaming, and improved mass transport. The compactness of the oxide layer increases its protective properties against corrosive environments. However, increasing the ultrasonic frequency from 40 to 135 kHz suppresses the optimal growth of the oxide layer due to the presence of super-soft plasma swarms, resulting in a lower coating thickness. The integration of ultrasonic vibration with PEO shows promise for practical implementation in industries aiming to enhance corrosion protection, manipulate microstructures, and composition of magnesium alloys.
Article
Materials Science, Multidisciplinary
Nasir Shahin, Morteza Shamanian, Mahshid Kharaziha
Summary: In this study, a double-layer DLC/PEO coating was developed to decrease the corrosion rate of magnesium alloys, showing promise for biomedical applications.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Evgeniy D. Merson, Vitaliy A. Poluyanov, Pavel N. Myagkikh, Alexander S. Bunev, Dmitri L. Merson, Alexei Vinogradov
Summary: The study investigates the effect of hydrofluoric acid treatment on the corrosion and stress corrosion cracking (SCC) susceptibility of Mg-Zn-Ca alloy. It is found that the treatment significantly reduces the corrosion rate and SCC susceptibility of the alloy. The improvement in corrosion and SCC performance is attributed to the formation of a protective surface film, removal of surface contaminations, and dissolution of secondary phase particles.
Article
Chemistry, Physical
Tehseen Zehra, Supriya A. Patil, Nabeen K. Shrestha, Arash Fattah-alhosseini, Mosab Kaseem
Summary: The present work investigated the impact of different anions on the incorporation of WO3 nanoparticles into the MgO layer during the plasma electrolytic oxidation of AZ31 Mg alloy. The type of anion added into the electrolyte influenced the microstructural features, coating thickness, and corrosion resistance of the samples. The coating produced in the presence of silicate anions exhibited the best corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Lukasz Florczak, Ginter Nawrat, Kazimierz Darowicki, Jacek Ryl, Jan Sieniawski, Malgorzata Wierzbinska, Krzysztof Raga, Andrzej Sobkowiak
Summary: Plasma electrolytic oxidation is an effective method for improving the wear and corrosion resistance of magnesium alloys. The addition of NaBF4 and NaF to the electrolyte enhances the corrosion resistance of the protective layer, with NaBF4 showing the best results.
Article
Chemistry, Physical
P. Bala Srinivasan, J. Liang, C. Blawert, M. Stoermer, W. Dietzel
APPLIED SURFACE SCIENCE
(2009)
Article
Chemistry, Physical
P. Bala Srinivasan, J. Liang, C. Blawert, W. Dietzel
APPLIED SURFACE SCIENCE
(2010)
Article
Chemistry, Physical
P. Bala Srinivasan, J. Liang, R. G. Balajeee, C. Blawert, M. Stoermer, W. Dietzel
APPLIED SURFACE SCIENCE
(2010)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan, C. Blawert, W. Dietzel
Letter
Materials Science, Multidisciplinary
P. Bala Srinivasan, J. Liang, C. Blawert, M. Stoermer, W. Dietzel
JOURNAL OF MATERIALS SCIENCE
(2010)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan, R. Zettler, C. Blawert, W. Dietzel
MATERIALS CHARACTERIZATION
(2009)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan, C. Blawert, W. Dietzel
MATERIALS CHARACTERIZATION
(2009)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasana, M. P. Satish Kumar
MATERIALS CHEMISTRY AND PHYSICS
(2009)
Article
Materials Science, Multidisciplinary
M. P. Satish Kumar, P. Bala Srinivasan
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan, M. P. Satish Kumar
MATERIALS SCIENCE AND TECHNOLOGY
(2008)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan, V. Muthupandi, W. Dietzel, V. Sivan
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2006)
Article
Materials Science, Multidisciplinary
V Muthupandi, PB Srinivasan, V Shankar, SK Seshadri, S Sundaresan
Article
Nanoscience & Nanotechnology
V Muthupandi, PB Srinivasan, SK Seshadri, S Sundaresan
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2003)
Article
Materials Science, Multidisciplinary
P. Bala Srinivasan
LASERS IN ENGINEERING
(2008)
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)