Article
Chemistry, Physical
Shuaihao Zhang, Qiqi Zhu, Qiunan Li, Wei Ji, Weimin Wang, Zhengyi Fu
Summary: In this study, highly dense and ultrafine-grained tungsten alloy was successfully fabricated at a low temperature and high pressure using spark plasma sintering method.
Article
Nanoscience & Nanotechnology
Dan Wang, Kun Wang, Xinfu Wang
Summary: A TWIP steel prepared by mechanical alloying and SPS exhibited ultrahigh microhardness and considerable tensile strength, but also showed intergranular brittle fracture. After annealing, the ductility of the material significantly improved with a mixed fracture mode observed.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Lucia Garcia de la Cruz, Mayerling Martinez Celis, Clement Keller, Eric Hug
Summary: Research shows that with decreasing grain size, the strain hardening capabilities of nanocrystalline materials decrease, while samples in the submicrometric range exhibit the typical three stages of strain hardening, with a shorter second stage and the third stage starting soon after yielding.
Article
Materials Science, Multidisciplinary
Tilottoma Saha, Fahmida Gulshan, Syed Ansar Md. Tofail
Summary: Magnesium alloys have shown potential as bioresorbable implants due to their compatible mechanical properties with cortical bone. This study examines a newly designed Mg alloy prepared by Spark Plasma Sintering (SPS), investigating its surface analysis, microhardness, and accelerated corrosion behavior. The results suggest that the density during sintering can be controlled to adjust the bioresorption and strength of these alloys.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Vladimir Chuvil'deev, Aleksey Nokhrin, Constantin Likhnitskii, Vladimir Kopylov, Pavel Andreev, Maksim Boldin, Nataliya Tabachkova, Aleksander Malkin
Summary: A solid-phase diffusion welding process using Spark Plasma Sintering was used to join coarse-grained and ultrafine-grained specimens of Ti-5Al-2V titanium alloy in nuclear power engineering. The failure of the welded specimens was mainly due to intercrystalline corrosion under hot salt corrosion and electrochemical corrosion conditions. The presence of macrodefects led to crevice corrosion in the welded joints. The resistance to intercrystalline corrosion was influenced by the vanadium concentration at grain boundaries, the size and volume fraction of beta-phase particles, and the presence of micro- and macropores in the welded joints. The UFG alloy welded joints exhibited higher hardness and better resistance to hot salt corrosion and electrochemical corrosion.
Article
Materials Science, Multidisciplinary
E. Hug, C. Keller
Summary: The influence of grain size on the corrosion and passivation mechanisms of stainless steel 316L was investigated in this study. It was found that reducing grain size increases the passivation current density, but passivation treatment with HNO3 can enhance the stability of the passivation layer.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
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, Coatings & Films
J. Wu, F. J. Cao, T. Sun, G. Q. Huang, M. S. Li, W. T. Hou, Z. Y. Piao, Z. K. Shen, Y. F. Shen
Summary: We explored the feasibility of utilizing solid-state friction stir processing in air and underwater to modify the surface of duplex stainless steel (DSS). The underwater processing successfully developed an ultrafine-grained structure with balanced alpha/gamma ratio, resulting in enhanced wear and corrosion resistance. This work provides a simple and cost-effective pathway for improving the wear and corrosion resistance of DSS.
SURFACE & COATINGS TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Lin Zhang, Xingyu Li, Xuanhui Qu, Mingli Qin, Zhongyou Que, Zichen Wei, Chenguang Guo, Xin Lu, Yanhao Dong
Summary: Ultrafine-grained (UFG) refractory metals are promising materials for various applications, but achieving full density while maintaining a fine microstructure through sintering remains challenging. This article provides an overview of sintering issues, microstructural design rules, and powder metallurgy practices for UFG and nanocrystalline refractory metals. It also reviews previous efforts, including the use of fine/nanopowders and field-assisted sintering techniques, and highlights the recent technological breakthrough of pressureless two-step sintering for producing dense UFG refractory metals. Additionally, the progress of powder metallurgy in specific materials systems, such as elementary metals and refractory alloys, is discussed, and future developments towards UFG and nanocrystalline refractory metals with improved properties are outlined.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Ceramics
Melanie Rousselle, Florence Ansart, Thomas Herisson de Beauvoir, Guillaume Fradet, Claude Estournes
Summary: The study investigates low temperature Spark Plasma Sintering using a hydrated precursor for lanthanum phosphate, achieving dense and nano-scaled microstructures at temperatures ranging from 160 to 350 degrees Celsius.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
M. Alejandra Mazo, David Soriano, Juan Rubio
Summary: Nano- and micro-indentation experiments were conducted to evaluate the mechanical properties of dense SiOC materials obtained by SPS. The sintering temperature and pressure were varied, and the relationship between mechanical properties and several factors such as densification, porosity, composition evolution, and crystallization was determined. The SiOC sample sintered at 1400 degrees C showed the highest values of hardness and elastic modulus in both indentation tests. The SPS treatment resulted in neat densification without phase separation of the Si-O-C matrix, and the presence of carbon reduced brittleness.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Dawei Yi, Bin Li, Xiao Tan, Sifan Liu, Jin Chen, Yefei Li
Summary: Research on boron-bearing stainless steel showed that it has superior erosion-corrosion resistance due to its microstructure. Additionally, heat-treated boron-bearing stainless steel has lower hardness, and erosion-corrosion weight loss is affected by impact angle and rotating speed.
Article
Engineering, Mechanical
Hongming Wei, Jianpeng Zou, Yurong Gong, Xiaoya Li, Wenyi Zhan, Feiyang Li
Summary: Copper/graphite/Ti2SnC composites were prepared using spark plasma sintering with different sintering temperatures studied for their impact on the microstructure, density, hardness, resistivity, and tribological properties. The results showed that the best properties were obtained at a sintering temperature of 900 degrees C for relative density, hardness, friction coefficient, and wear rate, while the resistivity was best at a sintering temperature of 950 degrees C.
Article
Materials Science, Coatings & Films
Zhen Huang, Zi-Xin Guo, Lei Liu, Yuan-Yuan Guo, Jun Chen, Ze Zhang, Jin-Long Li, Yan Li, Yan-Wen Zhou, Ying-Shuang Liang
Summary: Nitriding of AISI 316L austenitic stainless steel under various pulsed bias conditions resulted in different phase structures, thicknesses, and hardness of the nitrided layer, which in turn affected the corrosion resistance of the material.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
H. S. Maurya, J. Jayaraj, R. J. Vikram, K. Juhani, F. Sergejev, K. G. Prashanth
Summary: This study compares the TiC-430 L ferritic stainless steel cermets manufactured using conventional spark plasma sintering (SPS) and metal additive manufacturing (AM) processes. The results show that the AM process produces cermets with finer microstructures, better mechanical properties, and improved corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Antoine Gueydan, Eric Hug
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2018)
Article
Nanoscience & Nanotechnology
B. Flipon, C. Keller, L. Garcia de la Cruz, E. Hug, F. Barbe
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2018)
Article
Materials Science, Multidisciplinary
Florent Picot, Antoine Gueydan, Mayerling Martinez, Florent Moisy, Eric Hug
Article
Materials Science, Multidisciplinary
F. Moisy, A. Gueydan, X. Sauvage, A. Guillet, C. Keller, E. Guilmeau, E. Hug
MATERIALS & DESIGN
(2018)
Article
Materials Science, Multidisciplinary
Eric Hug, Clement Keller
PHILOSOPHICAL MAGAZINE
(2019)
Article
Nanoscience & Nanotechnology
Lucia Garcia de la Cruz, Mayerling Martinez, Clement Keller, Eric Hug
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Materials Science, Multidisciplinary
Lucia Garcia de la Cruz, Bernadette Domenges, Sergiy V. Divinski, Gerhard Wilde, Eric Hug
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Sibo Yuan, Laurent Duchene, Clement Keller, Eric Hug, Anne-Marie Habraken
MECHANICS OF MATERIALS
(2020)
Article
Chemistry, Physical
Michal Knapek, Peter Minarik, Patrik Dobron, Jana Smilauerova, Mayerling Martinez Celis, Eric Hug, Frantisek Chmelik
Article
Materials Science, Multidisciplinary
Lucia Garcia de la Cruz, Mayerling Martinez Celis, Clement Keller, Eric Hug
Summary: Research shows that with decreasing grain size, the strain hardening capabilities of nanocrystalline materials decrease, while samples in the submicrometric range exhibit the typical three stages of strain hardening, with a shorter second stage and the third stage starting soon after yielding.
Editorial Material
Materials Science, Multidisciplinary
Eric Hug, Guy Dirras
Article
Materials Science, Multidisciplinary
F. Moisy, X. Sauvage, E. Hug
Article
Materials Science, Multidisciplinary
Mayerling Martinez, Eric Hug
Proceedings Paper
Materials Science, Multidisciplinary
Florent Moisy, Antoine Gueydan, Xavier Sauvage, Clement Keller, Alain Guillet, Nga Nguyen, Mayerling Martinez, Eric Hug
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS
(2018)
Proceedings Paper
Materials Science, Multidisciplinary
Lucia Garcia de la Cruz, Baptiste Flipon, Clement Keller, Mayerling Martinez, Eric Hug
PROCEEDINGS OF THE 20TH INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING (ESAFORM 2017)
(2017)