Institute of Fundamental Technological Research
Polish Academy of Sciences

Staff

Ved Prakash Dubey, MSc

Department of Experimental Mechanics (ZMD)
Division of Strength of Materials (PWM)
Laboratory for Testing of Materials and Structures
PhD student
telephone: (+48) 22 826 12 81 ext.: 340
room: -110
e-mail:

List of chapters in recent monographs
1. 
Kujur M.S., Dubey V.P., Mallick A., Gupta M., Encyclopedia of Materials: Composites, rozdział: Tensile Characteristics of Metal Matrix Composites, Elsevier, pp.298-312, 2021

Conference papers
1.  Dubey V.P., Kopeć M., Mallick A., Kowalewski Z.L., The effect of enhanced solid solubility on the microstructure and mechanical properties of Al-Cr solid solution by powder metallurgy process, XXII Międzynarodowa Studencka Sesja Naukowa “Materiały i Technologie XXI Wieku, 2021-05-28/05-28, on-line Katowice (PL), pp.59-64, 2021

Abstract:
Al-Cr alloys are usually used in home appliances, automotive, marine and aerospace applications as these possess superior properties like high strength-to-weight ratio, good corrosion resistance and workability. In Al-Cr alloys, chromium has severely limited strengthening effects due to its relatively low solid solubility in the aluminium matrix. The high content of chromium in Al matrix leads to the discontinuous precipitation with coarse Al7Cr intermetallic phase. In this study, powder metallurgy (P/M) technique followed by microwave assisted sintering was adopted for the synthesis of Al-xCr (x = 0, 2.5 and 5 wt%) alloys to enhance the solid solubility of Cr. Specimens were sintered at 560 ºC for one hour and cooled inside the microwave atmosphere. Sintered specimens were hot extruded and characterized in terms of the mechanical properties. Mechanical characterization showed that the addition of Cr as alloying element leads to an increase in microhardness, 0.2% tensile yield strength (TYS) and ultimate tensile strength (UTS) of the Al-alloy. However, the ductility of the Al-alloys was significantly decreased by the incorporation of Cr particulates in the aluminium matrix.

Keywords:
Al-Cr system, powder metallurgy technique, hybrid microwave sintering, mechanical properties

Affiliations:
Dubey V.P. - IPPT PAN
Kopeć M. - IPPT PAN
Mallick A. - Indian Institute of Technology (IN)
Kowalewski Z.L. - IPPT PAN

Conference abstracts
1.  Dubey V.P., Kopeć M., Kowalewski Z.L., Yield surface identification of Ti-Cu bimetal and its evolution reflecting deformation history under complex loadings, ICEM, 19th International Conference on Experimental Mechanics, 2022-07-17/07-21, Kraków (PL), No.TS1, pp.136-137, 2022
2.  Dubey V.P., Kopeć M., Kowalewski Z.L., The Effect of Predeformation History Under Complex Loading on the Yield Surface Evolution of Titanium Alloy: An Experimental Investigation, IUTAM Symposium, IUTAM Symposium on Enhancing Material Performance by Exploiting Instabilities and Damage Evolution, 2022-06-05/06-10, Warszawa (PL), pp.1, 2022
3.  Dubey V.P., Kopeć M., Kowalewski Z.L., Yield Surface Identification of Technically Pure Titanium Alloy and Its Evolution Reflecting Deformation History Under Complex Loadings, ICMPMA, International Conference on Materials: Properties, Measurements, and Application, 2022-05-09/05-13, Kollam (IN), pp.1, 2022

Keywords:
yield surface, pre-deformation, plastic anisotropy, cycle loading

Affiliations:
Dubey V.P. - IPPT PAN
Kopeć M. - IPPT PAN
Kowalewski Z.L. - IPPT PAN
4.  Kopeć M., Dubey V.P., Brodecki A., Kowalewski Z.L., Failure analysis of orthopedic implants, IMPLANTY'2021, III Ogólnopolska Konferencja Naukowa IMPLANTY2021 Koncepcja a realia we współczesnych rozwiązaniach, 2021-06-18/06-18, Gdańsk (PL), pp.1, 2021

Keywords:
medical fixation devices, orthopedicimplants, SEM, fracture analysis, titanium alloy, stainless steel

Affiliations:
Kopeć M. - IPPT PAN
Dubey V.P. - IPPT PAN
Brodecki A. - IPPT PAN
Kowalewski Z.L. - IPPT PAN
5.  Dubey V.P., Kopeć M., Mallick A., Kowalewski Z.L., An effect of enhanced solid solubility on the microstructure and mechanical properties of Al-Cr solid solution by powder metallurgy process, Międzynarodowa Studencka Sesja Naukowa Materiały i Technologie XXI wieku, 2021-05-28/05-28, Gliwice (PL), pp.1, 2021
6.  Dubey V.P., Kopeć M., Kowalewski Z.L., Insight of magnesium matrix nanocomposites for biomedical applications - a synthetic review, XXII Polish Conference on Biocybernetics and Biomedical Engineering, 2021-05-19/05-21, Warszawa (PL), pp.1, 2021

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