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
Chemistry, Physical
S. D. Gaikwad, Polasani Ajay, Vikram V. Dabhade, S. V. S. Narayana Murty, Sushant Manwatkar, U. Prakash
Summary: In this study, powder forging was used to consolidate a mechanically alloyed Ni-based ODS powder. The forged slab achieved near full density, ultra-fine grain size, and uniform distribution of oxide particles, leading to enhanced mechanical properties at room and elevated temperatures. The powder forging route can serve as an alternative consolidation technique for powder metallurgy ODS superalloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Materials Science, Multidisciplinary
Sunil Kumar Rajulapati, S. D. Gaikwad, Vikram. V. Dabhade, Ujjwal Prakash
Summary: This study investigates the feasibility of using the powder forging route for the consolidation of oxide dispersion strengthened steel. The results show that the powder forging process eliminates the prior particle boundaries network and achieves near isotropic mechanical properties and homogeneous chemical composition.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Akshay Padnuru Sripathy, Cindy Handjaja, Vyasaraj Manakari, Gururaj Parande, Manoj Gupta
Summary: In this study, lightweight glass micro balloon (GMB)-reinforced Mg syntactic foams were synthesized using hybrid microwave sintering, resulting in MgMSFs with refined grain sizes, no secondary phases, and reasonably uniform distributions of reinforcement particles. The addition of GMB led to reduced coefficient of thermal expansion and improved ignition resistance, while increasing hardness. Ultimate compression strength, fracture strain, and energy absorption capabilities also increased, with the Mg-5GMB and Mg-20GMB composites showing the best performance compared to pure Mg. Overall, the developed MgMSFs exhibited superior specific strength compared to monolithic magnesium.
Article
Chemistry, Physical
Ajit Kumar, Pulak M. Pandey
Summary: By optimizing the microwave sintering parameters of Mg3Zn1Ca15Nb, the study improved the mechanical and bio-corrosion properties of the material. The samples sintered using microwave route showed advantages in bio-corrosion behavior, but still lagged behind in mechanical properties compared to conventionally sintered samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
S. Jayasathyakawin, M. Ravichandran, Sikiru Oluwarotimi Ismail, G. Veerappan
Summary: Magnesium (Mg)-based composites offer excellent properties for various applications. This study focused on synthesizing Mg-Al-ZnO composites and analyzing their microstructures and properties. ZnO particles were uniformly distributed in the composite samples. The selection of composite samples for friction and wear applications should be based on their different responses to friction and wear.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Metallurgy & Metallurgical Engineering
Huan Luo, Jian-bo LI, Jun-liu Ye, Jun Tan, Muhammad Rashad, Xian-hua Chen, Sheng-li Han, Kai-hong Zheng, Tian-tian Zhao, Fu-sheng Pan
Summary: This study successfully prepared AZ91 magnesium matrix composites reinforced by TC4 particles via powder metallurgical method, and investigated the relationship between the mechanical properties and the content of TC4. The results showed that the mechanical properties of the composites reached the optimal point when the TC4 content was 10 wt.%.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Chemistry, Physical
Yunpeng Hu, Delong Dong, Xiangyu Wang, Hongtang Chen, Yang Qiao
Summary: The study found that increasing manganese content in Mg-Mn-Zn alloys improved their mechanical properties and corrosion resistance. Among the tested alloys, Mg-1.0Mn-2.0Zn showed the best performance and is more suitable for use in human body fluids.
Article
Chemistry, Physical
Ao Fu, Yuankui Cao, Yuxi Liu, Shenghang Xu
Summary: A series of lightweight TaNbVTi-based refractory high entropy alloys (RHEA) were fabricated using ball-milling and spark plasma sintering (SPS). The addition of Al2O3 ceramic particles resulted in the formation of reinforced TiO precipitates. The RHEA with 15% Al2O3 exhibited high compressive yield strength and low density, outperforming the RHEA without Al2O3 addition. The high specific yield strength of the RHEAs is attributed to the introduction of a high volume fraction of Al2O3 additives, while the ductile matrix contributes to the good compressive plasticity.
Article
Materials Science, Multidisciplinary
Jozef Minda, Stanislava Fintova, Branislav Hadzima, Pavel Dolezal, Michaela Hasonova, Leos Doskocil, Jaromir Wasserbauer
Summary: Pure Mg samples were prepared by powder metallurgy using cold and hot compacting methods, with hot compacted samples showing longer corrosion resistance and uniform corrosion behavior compared to cold compacted samples. The difference in corrosion behavior was mainly related to the different binding mechanisms during compaction.
Article
Materials Science, Multidisciplinary
Ajit Kumar, Pulak M. Pandey
Summary: The study focuses on the development of a modular die setup for performing pressure-assisted sintering of Mg3Zn1Ca15Nb in a tubular heating furnace. The customized die setup allows for the application of pressure to the green compact of Mg3Zn1Ca15Nb. The results show that the application of spring load during sintering improves the mechanical and anti-corrosion properties of the less compacted samples.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Tarik Aydogmus, Dana Kareem Hameed Palani, Fevzi Kelen
Summary: Ti74Nb26 alloys with porosities in the range of 45-68% were successfully produced using Mg space holder technique combined with hot pressing and sintering processes. The mechanical properties of the alloys improved with decreasing porosity and were suitable for various bone replacement applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
David Necas, Ivo Marek, Jan Pinc, Dalibor Vojtech, Jiri Kubasek
Summary: Zinc and its alloys are potential materials for biodegradable medical devices. This study investigated the effects of different mechanical alloying parameters on Zn-1Mg powder and the influence of preparation by mechanical alloying on Zn-6Mg and Zn-16Mg alloys. The sintered samples showed improved microstructures and mechanical properties, with the Zn-1Mg alloy exhibiting the best performance.
Article
Chemistry, Physical
D. Vogiatzief, A. Evirgen, M. Pedersen, J. Czerski, M. Mitoraj-Krolikowska, E. Godlewska, E. Eshed, U. Hecht
Summary: This study focuses on the Al0.8CrFe2Ni2 high entropy alloy fabricated using laser powder bed fusion with pre-alloyed powder. Heat treatment of the as-built material resulted in a dual-phase microstructure composed of face-centered-cubic grains and Al-, Ni-rich body-centered-cubic B2 precipitates. The effects of heat treatment on the alloy's properties were explored through microstructure characterization, mechanical, and corrosion testing. The results demonstrate that mechanical properties can be tailored by controlling the size of precipitates through heat treatment. Refining the precipitates improves strength without significant loss of ductility. Corrosion tests show that the as-built samples display better overall corrosion resistance compared to heat-treated samples, attributed to the influence of precipitates on micro-galvanic cell formation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Myoung Jin Chae, Ashutosh Sharma, Min Chul Oh, Byungmin Ahn
Summary: In this study, a new AlCuFeMnMgTi lightweight high entropy alloy (LWHEA) was synthesized via high energy ball milling and spark plasma sintering (SPS). The effect of milling time and SPS conditions on microstructure, hardness, and density of LWHEAs was investigated. The results showed that the BCC2 phase fraction increased gradually after SPS, and porosity increased with longer milling time and higher SPS temperature. The presence of finer secondary phases in the HEA matrix contributed to dispersion hardening, resulting in optimum microhardness and density.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ning Zou, Qizhen Li
JOURNAL OF MATERIALS SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
Huiru Xu, Ning Zou, Qizhen Li
Article
Materials Science, Multidisciplinary
Ning Zou, Qizhen Li
Article
Physics, Applied
Jun Chen, Jianyong Li, Longlong Fan, Ning Zou, Pengfei Ji, Laijun Liu, Liang Fang, Huajun Kang, Xianran Xing
JOURNAL OF APPLIED PHYSICS
(2012)
Article
Chemistry, Physical
Xinfeng Li, Jin Zhang, Qinqin Fu, Eiji Akiyama, Xiaolong Song, Yanfei Wang, Qizhen Li, Ning Zou
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)