Article
Materials Science, Multidisciplinary
Hao Deng, Yong-Qiang Wei, Jun Tang, Ai-Jun Chen, Long-Qing Chen, Zu-Xi Xia
Summary: In this study, an ultrafine-grained high-Nb-TiAl alloy was synthesized by cryomilling and subsequent spark plasma sintering (SPS) technique. Cryomilling effectively reduced the particle size and enhanced grain refinement. The sintered ingots exhibited equiaxed near-gamma microstructure with grain sizes < 700 nm at 900 and 1000 degrees C, and duplex microstructure at 1100 degrees C. The sample sintered at 1000 degrees C showed excellent mechanical properties with high compression yield strength, fracture strength, bending strength, and plastic strain. Cryomilling combined with SPS is suggested as an effective method for synthesizing high-Nb-TiAl alloy with ultrafine-grained structure.
Article
Materials Science, Multidisciplinary
Yingchao Guo, Yongfeng Liang, Junpin Lin, Fei Yang
Summary: The addition of nano-Y2O3 enhanced the fine-grain strengthening and second-phase strengthening of the high-Nb TiAl alloy, leading to increased tensile strength and elongation.
Article
Chemistry, Multidisciplinary
Hua-Lu Zhuang, Jun Pei, Bowen Cai, Jinfeng Dong, Haihua Hu, Fu-Hua Sun, Yu Pan, Gerald Jeffrey Snyder, Jing-Feng Li
Summary: The study emphasizes the importance of the synthesis process for achieving high performance in Bi2Te3-based thermoelectric materials. By applying cyclic spark plasma liquid phase sintering, a unique microstructure with enlarged grains and abundant nanostructures can be formed, leading to high charge carrier mobility and low lattice thermal conductivity. This results in a significantly higher ZT value compared to conventionally spark-plasma-sintered materials.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
A. Van der Laan, R. Epherre, C. Estournes
Summary: Numerical modelling provides access to features that are not experimentally accessible, such as the sintering mechanisms during spark plasma sintering. By developing an innovative multi-mechanisms approach, the simultaneous effects of two mechanisms on material densification can be considered and interpreted for spark plasma sintering.
Article
Metallurgy & Metallurgical Engineering
Michal Knapek, Maria Zemkova, Adam Gres, Eva Jablonska, Frantisek Lukac, Robert Kral, Jan Bohlen, Peter Minarik
Summary: Alloying magnesium with rare-earth elements has been shown to improve material performance, and the novel WN43 alloy prepared by SPS demonstrates superior mechanical and corrosion properties, making it a promising candidate for biomedical applications with customizable characteristics.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Chemistry, Multidisciplinary
Sneha Samal, Orsolya Molnarova, Filip Prusa, Jaromir Kopecek, Ludek Heller, Petr Sittner, Marcela Skodova, Lorenzo Abate, Ignazio Blanco
Summary: The spark plasma sintering approach was used to analyze the shape memory effect of a NiTi alloy, showing good shape memory effects at 900 degrees C but with 2.5% porosity due to a load of 48 MPa. The specimens displayed significant austenite phases with a bending strain recovery of >2.5%.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
M. P. Kamil, D. Sandyaning, A. S. Wismogroho, K. Corneliasari, B. Hermanto, T. Sudiro, A. Afandi
Summary: This study investigated a Ni-38Mo binary alloy, focusing on Ni solid solution and Ni-Mo intermetallic phases. A homogeneous Ni-Mo alloy powder obtained by mechanical alloying was consolidated using spark plasma sintering (SPS). The main phases observed after sintering were a Ni(Mo) solid solution and the delta-NiMo intermetallic phase.
Article
Nanoscience & Nanotechnology
Jiayin Chen, Zeyun Cai, Tao Xiang, Peng Du, Guoqiang Xie
Summary: This study successfully prepared ultra-high-strength Ti-N alloys with an N content of 2.66 wt% and a yield strength exceeding 2000 MPa. By combining fine-grain strengthening and solution strengthening, the strength of the Ti-N alloys was enhanced.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Neal D. D. Gaffin, Caen Ang, Justin L. L. Milner, Kelsa B. Palomares, Steven J. J. Zinkle
Summary: Molybdenum alloys were consolidated using spark plasma sintering to determine the optimum sintering conditions. Higher sintering pressures are necessary to achieve higher sample density at lower temperatures. The hardness of the sintered material increased due to solid solution strengthening.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Metallurgy & Metallurgical Engineering
Ya-ke Ren, Xue-qian Lue, Zu-ming Liu, Bing Wei, Ting Lei, Quan LI, Xiao-bo Ji, Wen-tao Deng, Yong-kang AI
Summary: Cu-2Cr-1Nb alloy was fabricated by SPS method, and the optimal SPS parameters were obtained. The as-sintered alloy exhibited high relative density and fine grain structure, showing excellent mechanical and electrical properties.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Ayberk Cetinbag, Ozden Ormanci, Gultekin Goller
Summary: TZM alloy is an important Mo-based alloy for high temperature applications, but its low oxidation resistance limits its use. In this study, B4C reinforced TZM alloy was produced and borided in one step using spark plasma sintering, improving its oxidation resistance.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Article
Chemistry, Physical
Ki Beom Park, Jae-Young Park, Young Do Kim, Tae-Wook Na, Chan Bin Mo, Jong-In Choi, Jun Choi, Hyun-Su Kang, Hyung-Ki Park
Summary: In this study, TaNbHfZrTi high-entropy alloy powders were synthesized using a hydrogenation dehydrogenation reaction and their sintering behavior was investigated using spark plasma sintering. The powders had a dual-phase microstructure after dehydrogenation, with densification and grain growth occurring during sintering. Comparison of microstructures showed a significant decrease in grain size from the initial ingot to the sintered compact, leading to an increase in yield strength.
Article
Materials Science, Multidisciplinary
Yunpeng Zhu, Jiayu Qin, Jinhui Wang, Peipeng Jin, Peijie Li
Summary: The strain hardening behavior of AZ91 alloys fabricated by spark plasma sintering (SPS) under different sintering temperatures was investigated through compression tests at room temperature. The sintered AZ91 alloys with random texture showed high yield strength and significant strain hardening ability. The hardening abilities, including strain hardening rate, strain hardening exponent, and hardening capacity, increased with increasing sintering temperature. The strain hardening in the sintered AZ91 alloys was mainly controlled by dislocation slip and accompanied by extension twinning. The increase in hardening abilities was primarily attributed to the enhanced dislocation-induced strain hardening due to the accelerated rate of dislocation propagation caused by coarse grains. Additionally, the strain hardening induced by twinning was suppressed by fine grains and intragranular lamellar Mg17Al12 precipitates.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Elder Soares, Nadege Bouchonneau, Elizeth Alves, Kleber Alves, Oscar Araujo Filho, David Mesguich, Geoffroy Chevallier, Christophe Laurent, Claude Estournes
Summary: The study utilized commercial AA7075 aluminum alloy powder to prepare dense samples by Spark Plasma Sintering, with results showing that samples prepared using ball-milled powder exhibited higher hardness and transverse fracture strength values, reflecting a finer microstructure.
Article
Nanoscience & Nanotechnology
Weizong Bao, Han Yan, Jie Chen, Guoqiang Xie
Summary: This study synthesized high-strength and high-conductivity CuCrZr alloy/CuZrAl metallic glass composites via spark plasma sintering and investigated the effect of metallic glass content on the properties of the composites. The findings suggest that a good bonding state between metallic glass and crystalline alloy is essential for achieving high strength and high conductivity in the composites. This research provides insights into the untapped potential of high-strength and high-conductivity Cu matrix crystal/amorphous composites.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Zan Li, Thomas Voisin, Joseph T. McKeown, Jianchao Ye, Tom Braun, Chandrika Kamath, Wayne E. King, Y. Morris Wang
INTERNATIONAL JOURNAL OF PLASTICITY
(2019)
Article
Materials Science, Multidisciplinary
Z. Shang, C. Fan, S. Xue, Jie Ding, Jin Li, T. Voisin, Y. M. Wang, H. Wang, X. Zhang
MATERIALS RESEARCH LETTERS
(2019)
Article
Multidisciplinary Sciences
Wen Chen, Thomas Voisin, Yin Zhang, Jean-Baptiste Florien, Christopher M. Spadaccini, David L. McDowell, Ting Zhu, Y. Morris Wang
NATURE COMMUNICATIONS
(2019)
Article
Physics, Applied
C. Harthcock, S. R. Qiu, R. A. Negres, J. A. Hammons, T. Voisin, G. Guss, A. A. Martin, C. J. Stolz, M. G. Menor, G. Bhowmik, M. Huang
APPLIED PHYSICS LETTERS
(2019)
Article
Materials Science, Multidisciplinary
T. Voisin, M. D. Grapes, T. T. Li, M. K. Santala, Y. Zhang, J. P. Ligda, N. J. Lorenzo, B. E. Schuster, G. H. Campbell, T. P. Weihs
Article
Materials Science, Multidisciplinary
Thomas Voisin, Jean-Baptiste Forien, Aurelien Perron, Sylvie Aubry, Nicolas Bertin, Amit Samanta, Alexander Baker, Y. Morris Wang
Summary: The rapid solidification cellular structures in 316L austenitic stainless steels fabricated by laser powder-bed-fusion were found to have specific crystallographic orientations in cell walls, which act as barriers to dislocation movement and contribute to material strengthening. Additionally, oxide precipitates confined inside cell walls also enhance the material's strength. Overall, the understanding of these intrinsic characteristics and strengthening mechanisms can help improve the material's thermal stability and high strength.
Article
Nanoscience & Nanotechnology
Jeong-Min Park, Yakai Zhao, Thomas Voisin, Dong-Hyun Lee, Shin-ichi Komazaki, Yoonseok Ko, Dong-Ik Kim, Jin-Yoo Suh, Heung Nam Han, Y. Morris Wang, Upadrasta Ramamurty, Jae-il Jang
Summary: The effect of hydrogen charging on the nanoindentation response of a selective laser melted 316L austenitic stainless steel was investigated. Results showed that the hardness increment due to hydrogen charging in SLM samples was relatively smaller compared to conventionally manufactured samples. The study also found that the charged SLM alloy had a lower hydrogen content and apparent hydrogen diffusivity, attributed to the ultrafine solidification cell structure in the SLM alloy. Additionally, the cell walls in the SLM alloy were relatively insensitive to hydrogen charging compared to the cell interiors.
SCRIPTA MATERIALIA
(2021)
Review
Materials Science, Multidisciplinary
Jean-Philippe Monchoux, Alain Couret, Lise Durand, Thomas Voisin, Zofia Trzaska, Marc Thomas
Summary: Spark plasma sintering (SPS) has evolved into a mature powder metallurgy technique with the ability to rapidly heat metallic powders using high intensity electric currents. While offering numerous advantages, SPS also comes with certain limitations that need to be addressed. Studying the impact of electric currents on densification mechanisms and typical microstructures and properties under SPS can provide valuable insights for fabricating enhanced materials.
Article
Materials Science, Multidisciplinary
Zhongxia Shang, Cuncai Fan, Jie Ding, Sichuang Xue, Adam Gabriel, Lin Shao, Thomas Voisin, Y. Morris Wang, Tongjun Niu, Jin Li, Tomas Diaz de la Rubia, Haiyan Wang, Xinghang Zhang
Summary: In this study, an additively manufactured 316LN austenitic stainless steel was irradiated with 3.5 MeV Fe ion at 450 degrees C to a peak dose of 220 dpa. Microscopy studies revealed that the additively manufactured sample had a lower Frank loop density and smaller size compared to the cold worked counterpart, suggesting that cellular structures may suppress the formation of perfect loops and reduce solute segregations. This work advances the understanding of high-temperature irradiation response of additively manufactured steels for nuclear reactor applications.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Physics, Applied
V. N. Peters, S. R. Qiu, C. Harthcock, R. A. Negres, G. Guss, T. Voisin, E. Feigenbaum, C. J. Stolz, D. Vipin, M. Huang
Summary: By comparing hafnia films produced by different deposition methods, it was found that e-beam produced films are more damage-resistant, while films produced by ion beam sputtering exhibit higher internal pressure leading to increased susceptibility to damage. Further studies are needed to fully understand the mechanisms behind these differences and develop strategies for producing laser damage-resistant coatings.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Thejaswi U. Tumkur, Thomas Voisin, Rongpei Shi, Philip J. Depond, Tien T. Roehling, Sheldon Wu, Michael F. Crumb, John D. Roehling, Gabe Guss, Saad A. Khairallah, Manyalibo J. Matthews
Summary: In comparison to Gaussian beams, Bessel beams offer superior control over the spatiotemporal evolution of the melt pool in stainless steel additive manufacturing, reducing the risk of keyhole formation significantly. By minimizing thermal gradients, Bessel beams stabilize melt pool turbulence and increase solidification time, resulting in improved combination of high density, reduced surface roughness, and robust mechanical properties in 3D-printed structures.
Article
Chemistry, Physical
Jianchao Ye, Ling Liu, James Oakdale, Joseph Lefebvre, Sanjit Bhowmick, Thomas Voisin, John D. Roehling, William L. Smith, Maira R. Ceron, Jip van Ham, Leonardus Bimo Bayu Aji, Monika M. Biener, Y. Morris Wang, Patrick R. Onck, Juergen Biener
Summary: The study demonstrates that by designing tube-in-tube beam structures, low-density structural materials can be strengthened, slowing down the decrease of stiffness with decreasing density, achieving large deformation recovery and high specific damping merit index.
Correction
Multidisciplinary Sciences
Wen Chen, Thomas Voisin, Yin Zhang, Jean-Baptiste Forien, Christopher M. Spadaccini, David L. McDowell, Ting Zhu, Y. Morris Wang
NATURE COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
T. Voisin, R. Shi, Y. Zhu, Z. Qi, M. Wu, S. Sen-Britain, Y. Zhang, S. R. Qiu, Y. M. Wang, S. Thomas, B. C. Wood
Summary: The first part of this article reviews the microstructures found in LPBF 316L SS and their impact on corrosion properties, with a focus on pitting resistance. The second part discusses relevant modeling techniques for simulating the corrosion of LPBF 316L SS and identifies current challenges that need to be addressed.
Article
Chemistry, Multidisciplinary
Tongshuai Wang, Siwei Liang, Zhen Qi, Monika Biener, Thomas Voisin, Joshua A. Hammons, Ich C. Tran, Marcus A. Worsley, Tom Braun, Y. Morris Wang, Juergen Biener, Theodore Baumann, Sangil Kim, Jianchao Ye
MATERIALS HORIZONS
(2020)
