Article
Engineering, Mechanical
Kotikala Rajasekhar, V. Suresh Babu, M. J. Davidson, G. Raghavendra
Summary: The experimental investigation focused on the hot formability and densification characteristics of Al-Cu/Al two-layered structure composites, exploring the effects of different Cu compositions and deformation temperatures on the preforms. The study also discussed the relationship between various process parameters.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Guijing Li, Xinlei Han, Yingxue Liang, Yuzhuo Fan, Wenjie Feng
Summary: Achieving high-density metal matrix composites through traditional powder metallurgy remains challenging. This study proposes short-time hot repressing as a method to densify an Ag-SnO2 contact material prepared through powder metallurgy. The effect of vacuum repressing temperature on the material containing CuO additive was investigated, and the results showed that a relative density of 99.75% can be achieved by repressing at 800 degrees C for 10 minutes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Chengshang Zhou, Fangrui Lin, Pei Sun, Zoujun Chen, Zhongyuan Duan, Xianzhi Zhu, Yong Liu, Zhigang Zak Fang
Summary: This paper introduces a novel approach called constrained hydrogenation assisted densification (CHAD) for improving the density of powder metallurgy Ti alloys. The results demonstrate that CHAD can effectively reduce or eliminate residual porosity in Ti alloys and improve their tensile properties. This method is considered as an efficient and cost-effective technique for manufacturing high-density Ti alloys.
SCRIPTA MATERIALIA
(2022)
Article
Nanoscience & Nanotechnology
Levent Karacasulu, Ezgi Ogur, Cerem Piskin, Cekdar Vakifahmetoglu
Summary: The ordinary recycled soda lime glass powder was densified through cold sintering process with the aid of concentrated NaOH solution. Increasing processing time, temperature, and concentration of NaOH solution led to the formation of monolithic glass artifacts with higher relative densities. The highest densification (95.2%) was achieved when sintering was done at 250 degrees C for 20 minutes using 15 M NaOH solution.
SCRIPTA MATERIALIA
(2021)
Article
Automation & Control Systems
Ana Marques, Angela Cunha, Flavio Bartolomeu, Filipe Samuel Silva, Oscar Carvalho
Summary: This study aims to provide a useful engineering tool for researchers studying the production of well-densified IN718 parts by uniaxial vacuum hot pressing. The research focuses on the influence of sintering conditions on densification, microstructural features, fracture mode, and hardness properties of IN718 powder. The results show that the sintering temperature and pressure have significant effects on the grain size, fracture mode, and hardness of the specimens.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shaohong Liu, Fengshuo Xu, Limin Zhou, Hao Cui, Manmen Liu, Ming Wen, Chuanjun Wang, Wei Wang, Song Li, Xudong Sun
Summary: In this study, a novel hot-pressing deformation method is proposed to fabricate high-quality ruthenium targets. The application of appropriate pressure and temperature enables densification and texture formation in the targets, leading to enhanced mechanical and crystallographic properties.
Article
Materials Science, Characterization & Testing
Tharmaraj Ramakrishnan, Joseph Davidson Maharajan
Summary: The study aims to investigate the impact of selective heating on the microstructure of sintered powder metallurgy aluminum and titanium-based preforms. Cold upsetting tests at various temperatures showed that the average grain size of the aluminum-titanium preforms increases with the rise in temperature.
JOURNAL OF TESTING AND EVALUATION
(2023)
Article
Materials Science, Multidisciplinary
Xiao Li, Biao Guo, Jie Jian, Jinqing Ao, Qifeng Tang, Jiupeng Song, Yu Zhang
Summary: Selective surface densification (SSD) can significantly improve the mechanical properties of powder metallurgical (P/M) parts at low additional costs. This study proposes a new surface vibration extrusion process that enhances surface densification by facilitating dislocation motion and metal flow. The vibration-assisted extrusion results in a more thorough and uniform surface densification with lower extrusion load compared to direct extrusion. The high surface-densified layer achieved has a depth of up to 530 μm, slightly surpassing some commercial SSD parts, with approximately twice the surface hardness and superior friction and wear properties. Overall, surface vibration extrusion shows promise as a process for surface densification of P/M parts.
MATERIALS & DESIGN
(2022)
Article
Engineering, Mechanical
R. Tharmaraj, M. Joseph Davidson, R. Raja
Summary: In this study, localised heating was used to enhance critical damage parameter, delay initiation of failure, and increase critical damage value.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Yu Pan, Jinshan Zhang, Xinxin Wu, Yucheng Yang, Fan Kuang, Ce Zhang, Dong Lu, Xin Lu
Summary: We successfully fabricated a high-density and fine-grain titanium material by adding a small amount of CaB6 via powder metallurgy pressureless sintering route. The addition of CaB6 promotes the diffusion of titanium atoms and the formation of nano-sized CaTiO3 particles, resulting in increased sintered density. The presence of TiB whiskers and CaTiO3 particles in the titanium matrix creates a smaller grain size and enhances the grain growth activation energy. This study provides a feasible way to produce high-density and fine-grain titanium materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
G. Veerappan, M. Ravichandran, V Mohanavel, D. Pritima, S. Rajesh
Summary: High entropy alloys Ni-Co-Cr-Fe-Mn-Cu-x with varying copper content were synthesized and characterized using various tests and analysis methods. The results showed different properties and behaviors of the alloys.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Kanhu C. Nayak, Kedarnath K. Rane, Prashant P. Date, T. S. Srivatsan
Summary: Powder metallurgy-based metal matrix composites (MMCs) are widely used in the development of components in various industries. In this study, cylindrical sintered samples of an aluminum metal matrix reinforced with ceramic particles were synthesized using powder metallurgy. The density, hardness, and compressive strength of the MMCs were evaluated under different sintering conditions. The results showed that the addition of ceramic particle reinforcements affected the properties of the aluminum MMCs, and the sintering condition played a crucial role in optimizing the physical and mechanical properties of the composites.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Lukasz Zrodowski, Rafal Wroblewski, Tomasz Choma, Bartosz Moronczyk, Mateusz Ostrysz, Marcin Leonowicz, Wojciech Lacisz, Piotr Blyskun, Jan S. Wrobel, Grzegorz Cieslak, Bartlomiej Wysocki, Cezary Zrodowski, Karolina Pomian
Summary: The newly developed ultrasonic atomization method shows great promise in producing powders suitable for additive manufacturing, with highly spherical particles produced through electric arc melting and standing wave vibrations. This method has the potential to be a valuable tool for material scientists in developing powders with tailored chemical composition, size, and structure.
Article
Chemistry, Physical
Xuzhen Liu, Jun Wang, Yanmo Li, Shukui Li, Qi Cai
Summary: Pressureless sintering is a cost-effective method for shaping Ti-Al-Nb alloy components in the aerospace industry. By replacing elemental Al powder with Al-Nb master alloy powder, the sintering pores in the Ti-Al-Nb alloy were reduced, resulting in improved mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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
Engineering, Manufacturing
T. K. Kandavel, R. Sravanesh, P. Karthikeyan
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2017)
Article
Automation & Control Systems
R. Chandramouli, T. K. Kandavel, P. Karthikeyan
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2017)
Article
Engineering, Mechanical
T. K. Kandavel, T. Panneerselvam, Vignesh Mohan
INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING
(2017)
Article
Materials Science, Multidisciplinary
T. K. Kandavel, K. Praveen Sacs, M. Venkat Krishna
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2018)
Article
Automation & Control Systems
T. K. Kandavel, Ramaswamy Chandramouli
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2010)
Article
Materials Science, Multidisciplinary
T. K. Kandavel, R. Chandramouli, M. Ravichandran
MATERIALS & DESIGN
(2010)
Article
Materials Science, Multidisciplinary
T. K. Kandavel, R. Chandramouli, P. Karthikeyan
MATERIALS & DESIGN
(2012)
Article
Materials Science, Multidisciplinary
T. K. Kandavel, R. Chandramouli, M. Manoj, B. Manoj, Deepak Kumar Gupta
MATERIALS & DESIGN
(2013)
Article
Materials Science, Multidisciplinary
R. Chandramouli, T. K. Kandavel, P. Karthikeyan
MATERIALS & DESIGN
(2014)
Article
Engineering, Manufacturing
T. K. Kandavel, T. Panneerselvam, P. Karthikeyan
MATERIALS AND MANUFACTURING PROCESSES
(2015)
Proceedings Paper
Materials Science, Multidisciplinary
J. T. Vishnuraj, T. K. Kandavel, I. Sai Kishan, G. Akash
MATERIALS TODAY-PROCEEDINGS
(2018)
Proceedings Paper
Materials Science, Multidisciplinary
G. Akash, T. K. Kandavel, I. Sai Kishan, J. T. Vishnuraj
MATERIALS TODAY-PROCEEDINGS
(2018)
Article
Materials Science, Multidisciplinary
T. K. Kandavel, D. Vijay
MATERIALS PERFORMANCE AND CHARACTERIZATION
(2018)
Article
Multidisciplinary Sciences
T. K. Kandavel, R. Chandramouli
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2017)