Article
Materials Science, Multidisciplinary
Huicong Li, Qi Cai, Shukui Li, Hanqing Xu
Summary: Through the preparation and investigation of the alloys, it was found that Ti-Nb-Mo-Ta alloys possess excellent mechanical properties, with the second-phase strengthening being the dominant mechanism for improving the mechanical properties of the alloys, which is of great significance for the preparation and application of the alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Mehmet A. Erden, Mahir Akgun
Summary: This study investigated the effect of molybdenum addition on Cr steels produced by powder metallurgy. The results showed that Cr-PM steel with 5% Mo addition had the highest mechanical properties and surface quality, but the presence of MoC(N), CrC(N), and MoCrC(N) precipitates negatively affected cutting performance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2022)
Article
Chemistry, Physical
Harish Kumar Adigilli, Kolan Madhav Reddy, Yixuan Hu, Rajamallu Karre, P. V. V. Srinivas, K. Guruvidyathri, Anirudha Karati, V. S. Hariharan, P. Suresh Babu, A. K. Pandey, Joydip Joardar
Summary: Nanostructured two-dimensional WS2 reinforced Al-4Cu alloy matrix composites were prepared using spark plasma sintering, resulting in the formation of Al-W-Cu ternary phase at the grain boundaries and increased hardness in the composite material. High-resolution transmission electron microscopy and scanning TEM were utilized to confirm the structure and characteristics of the ternary phase, as well as the in situ formation mechanism.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Shima Ehtemam-Haghighi, Hooyar Attar, Ilya Okulov, Matthew S. Dargusch, Damon Kent
Summary: The study shows that Ti-Mo-Fe alloys offer significant cost savings on raw materials compared to current commercial biomedical Ti alloys, with excellent mechanical properties achieved through compositional adjustments. Porous Ti-10Mo-5Fe alloys with increased porosity through space holder additions exhibited decreased compressive strength and elastic modulus but are promising for hard tissue engineering applications due to their optimal pore sizes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Automation & Control Systems
Mehmet Akif Erden, Nafiz Yasar, Mehmet Erdi Korkmaz, Burak Ayvaci, K. Nimel Sworna Ross, Mozammel Mia
Summary: This study investigated the impact of molybdenum inclusion on the microstructure, mechanical properties, and machinability of steels manufactured using the powder metallurgy approach. The results indicated that steel with 3% Mo displayed the highest yield and tensile strength. Furthermore, an increase in Mo content led to higher yield and tensile strength and a decrease in strain, while coated cutting tools showed better machining output in terms of environmental impact.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
P. A. Loginov, Yu Yu Kaplanskii, G. M. Markov, E. Patsera, K. V. Vorotilo, A. Korotitskiy, N. Shvyndina, E. A. Levashov
Summary: In this study, Ti-Al-Nb-Mo-B alloy was successfully produced using high-energy ball milling, self-propagating high-temperature synthesis, and hot isostatic pressing techniques. Different types of microstructure and homogeneous distribution of components were achieved through high-energy ball milling. The preferential deformation mechanism of the studied alloy was found to be mechanical twinning.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Arman Khobzi, Mandana Adeli, Ashkan Sabour-Bagherzadeh, Ashkan Arab, Hooman Abedi
Summary: NiTi intermetallic compound was successfully fabricated through combustion synthesis processes, with the combustion mode and Ni particle size affecting the microstructure and microhardness of the final products. The results showed that samples produced by thermal explosion had coarse dendrites and higher microhardness values, while those synthesized by self-propagating process exhibited microstructures similar to heat-treated NiTi. Decreasing Ni particle size had a grain refining effect on NiTi2 in both modes.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Chemistry, Physical
D. Fichtner, J. Schmelzer, W. Yang, C. Heinze, M. Krueger
Summary: This paper presents the first comprehensive study on additive manufacturing of a high-melting near-eutectic Mo-Si-B alloy by laser powder bed fusion (L-PBF), analyzing the microstructure and mechanical properties of the material. The study demonstrates that crack-free samples can be produced with suitable process parameters.
Review
Chemistry, Physical
Mi Zhao, Wei Ye, Mengyuan Zhu, Yuteng Gui, Wei Guo, Shusen Wu, Youwei Yan
Summary: Mo-Si-B alloys have been extensively studied due to their high melting points, excellent high-temperature strength, and relatively good oxidation resistance. However, their insufficient room-temperature fracture toughness and high-temperature oxidation resistance hinder further application. By macroalloying Ti, a novel phase equilibrium can be established, resulting in improved mechanical properties and oxidation resistance. Understanding the advantages of quaternary alloys over ternary systems may lead to the development of novel ultra-high-temperature structural materials.
Article
Chemistry, Physical
David Reyes, Virgil Malard, Stefan Drawin, Alain Couret, Jean-Philippe Monchoux
Summary: The deformation mechanisms of an Nb-20Si-25Ti-6Al-3Cr-3Mo alloy deformed in compression at 1000 degrees C were studied, showing that only the Nbss matrix exhibited plastic deformation at this temperature. Interactions between delta-Nb11Si4 precipitates and dislocations were observed.
Article
Materials Science, Multidisciplinary
P. Sai Karthik, S. Ganesh, P. S. Ninawe, M. Battabyal, S. B. Chandrasekhar, R. Vijay
Summary: This study investigates the fabrication of austenitic oxide dispersion strengthened (AODS) steel using Ni-20Cr instead of commonly used Ni in second-stage ball milling. The mechanical alloying process was studied by measuring the yield and average size of milled powder. The AODS powder was subsequently consolidated using hot extrusion and solution annealed. The results showed improved powder yield and comparable strength levels to reported values.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Mi Zhao, Boyang Xu, Yuman Shao, Yan Zhu, Jie Wu, Shusen Wu, Youwei Yan
Summary: The 50Mo-20Ti-20Si-10B alloy suffered from pesting due to the large volume fraction of Mo3Si, resulting in porous products with severe volume expansion. In contrast, the 40Mo-30Ti-20Si-10B and 30Mo-40Ti-20Si-10B alloys exhibited better oxidation resistance. It is believed that interactions between constituent phases play a role in enhancing the overall oxidation resistance of the alloys during long-term oxidation.
Article
Materials Science, Multidisciplinary
Yuteng Gui, Mi Zhao, Sheng Yu, Jie Wu, Shusen Wu, Youwei Yan
Summary: This study investigated the microstructure and oxidation behavior of multi-phase Mo-Ti-Si-B alloys with 0.2-1.0at% Y addition. It was found that in addition to Moss, Ti5Si3, and Mo5SiB2, a Y-rich intermetallic compound, YTiSi, was generated in Y-added alloys. Increasing Y-content led to microstructure coarsening and an increase in Moss volume fraction. Y-addition significantly improved the oxidation resistance of the alloys at 800 degrees C due to the formation of a thermally stabilized Y2Mo3O12 layer. However, the positive effect of Y-addition could not be maintained at 1100 degrees C due to the decomposition of yttrium molybdates during long-term oxidation.
Article
Materials Science, Ceramics
Emine Sap
Summary: Metal matrix composite materials were produced by powder metallurgy processes with different proportions of Mo and SiCp powder particles. The effects of these particles on density, hardness, and wear performance were studied. The reinforcement ratios were found to have a significant impact on the properties of the composite materials.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Anna Knaislova, Vendula Simunkova, Pavel Novak, Filip Prusa, Marcello Cabibbo, Lucyna Jaworska, Dalibor Vojtech
Summary: Intermetallic alloys based on Ti-Al-Si system are significant for their excellent high-temperature properties, but high brittleness at room temperature is a main concern. Adding alloying elements has been attempted to improve the properties, but porous microstructure remains a challenge.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
J. L. Yu, Z. K. Li, K. F. Zhang, X. Zheng, J. J. Zhang, R. Bai, W. S. Wang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2010)
Article
Engineering, Chemical
Z. K. Li, J. L. Yu, X. Zheng, J. J. Zhang, H. Liu, R. Bai, H. Wang, D. H. Wang, W. S. Wang
Article
Nanoscience & Nanotechnology
J. L. Yu, K. F. Zhang, Z. K. Li, X. Zheng, G. F. Wang, R. Bai
SCRIPTA MATERIALIA
(2009)
Article
Materials Science, Multidisciplinary
Bai Run, Zheng Xin, Cai Xiaomei, Wang Feng, Xia Mingxing, Liu Hui, Li Laiping
RARE METAL MATERIALS AND ENGINEERING
(2016)
Article
Materials Science, Multidisciplinary
Zou Aihua, Wu Kaiyang, Zhou Xianliang, Zhang Jianyun, Bai Run
RARE METAL MATERIALS AND ENGINEERING
(2015)
Article
Materials Science, Multidisciplinary
Cai Xiaomei, Zheng Xin, Li Zhongkui, Bai Run, Wang Feng, Wang Donghui, Xia Mingxing
RARE METAL MATERIALS AND ENGINEERING
(2012)
Proceedings Paper
Materials Science, Multidisciplinary
Run Bai, Xin Zheng, Zhongkui Li, Xiaomei Cai, Feng Wang, Donghui Wang, Jiliang Yu
2011 CHINESE MATERIALS CONFERENCE
(2012)
Article
Materials Science, Multidisciplinary
Wang Feng, Zheng Xin, Bai Run, Cai Xiaomei, Zhang Xiaoming, Wang Donghui, Li Zhongkui
RARE METAL MATERIALS AND ENGINEERING
(2011)
Review
Materials Science, Multidisciplinary
Zheng Xin, Bai Run, Wang Donghui, Cai Xiaomei, Wang Feng, Xia Mingxing, Yu Jiliang
RARE METAL MATERIALS AND ENGINEERING
(2011)
Article
Materials Science, Multidisciplinary
Bai Run, Zhang Xiaoming, Hu Zhongwu, Zheng Xin, Zhang Tingjie, Wang Donghui, Li Zhongkui
RARE METAL MATERIALS AND 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)