Raghavendra CR
@dce.karnataka.gov.in
Asst professor/Mechanical Engineering
Commissionerate of collegiate education, Government of Karnataka
Faculty Profile -Government Engineering College, Haveri
Faculty ID:2372384
Dr. Raghavendra CR
Assistant Professor
Department of Mechanical Engineering
Government Engineering College
Haveri-581110, Karnataka, India
Ph: +919845762686
E-mail:
ORCID ID: 0000-0002-4160-1932
Vision:
I will provide the best technical knowledge to the students of undergraduate and post graduate, helping myself gain enhanced skills and to reach peak in the research filed with optimistic determination, dedication, and hard work.
Educational Qualification:
• Post-Graduation Diploma in Artificial Intelligence and Machine learning, NIT Warangal and EDUREKA Bengaluru, in 2022.
• Ph.D. in Mechanical Engineering Science at University B. D. T College of Engineering, Davanagere, in 2019.
• M.E in Thermal Science and Engineering at University Visvesvaraya College of Engineering, (U.V.C.E) Bengaluru, 2008.
• B.E in Mechanical Engineering at Sir.
EDUCATION
BE, ME, PGD, PhD
RESEARCH INTERESTS
Tribology, Nano materials, Coatings, Heat transfer
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
C. R. Raghavendra and K. P. Jhansilakshmi
Informa UK Limited
Manjunath Vatnalmath, C.R. Raghavendra, V. Auradi, V. Bharath, N. Nagaraj, and Madeva Nagaral
MAFTREE
Recent advancements in the field of coating have shown that the Ni-Al2O3 electrodeposited coatings are of excellent wear-resistant, corrosion-resistant. In this study, Ni-Al2O3 composite coating is produced by electrodeposition process by using standard watts bath due to the advantage over other coating techniques. Al2O3 nanoparticles are co-deposited on AA6061 with Nickel. There are many parameters that influence the coating characteristics, however, in this study temperature, current density and percentage of nanoparticle loading are considered as significant parameters. Optimization of the coating parameters is examined by using the Taguchi method. The coating morphology and microstructure are studied using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). The dry sliding wear behaviour of composite coatings is tested on a pin-on-disc wear test rig.
B.M. Kumara, C.R. Raghavendra, Shankara Naik, M. Dhanush kumar, C. Bharat Shadambi, and Nithin A Cholachagudda
Elsevier BV
C. R. Raghavendra
Informa UK Limited
K. P. Jhansi Lakshmi, S. Irappa, C. R. Raghavendra, and S. Basavarajappa
Informa UK Limited
C. R. Raghavendra
Springer Science and Business Media LLC
G. Madhavi, C. R. Raghavendra, and Kishan Naik
Springer Nature Singapore
G. Madhavi, Kishan Naik, and C.R. Raghavendra
Elsevier BV
G. Madhavi, Naik Kishan, and C.R. Raghavendra
Elsevier BV
C. R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Springer Science and Business Media LLC
C.R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Elsevier BV
C. R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Springer Science and Business Media LLC
K.P. Jhansi Lakshmi, Irappa Sogalad, S. Basavarajappa, and C.R. Raghavendra
Elsevier BV
C. R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Informa UK Limited
ABSTRACT Electrodeposition of Ni-α nano Al2O3 particle was carried out on Aluminium 6061. The study optimized electrodeposition conditions were found to be 40°C, 2 A/dm2, 6 g/L of temperature, current density, and percentage of particle concentration respectively. Further Taguchi method was extended to fine tune the optimized conditions obtained by L27 orthogonal array of parameters for modified study which resulted in better wear resistance with coating conditions of 40°C, 1.75 A/dm2 and 4.5 g/L of temperature, current density and percentage of particle concentration respectively. The dispersion of particles was found more uniform with very few nickel crystals with dendrite structure. GRAPHICAL ABSTRACT
C. R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Springer Science and Business Media LLC
Challakere Ramadas Raghavendra, Satyappa Basavarajappa, Irappa Sogalad, and Kishan Naik
Informa UK Limited
ABSTRACT Dry sliding wear experiments were carried out at constant normal load and sliding speed on electrodeposited Ni and Ni-α-nano Al2O3 coatings. The coating surfaces were worn against EN-32 HRc hardened steel in pin-on-disc test rig. The work was concentrated on the pin temperature, frictional force and specific wear rate of the coating which were measured as the function of sliding distance. The Ni coating was reported with lower frictional force and pin temperature in comparison with Ni-Al2O3 composite coating. Specific wear rate of the coating with nanoparticles was found to be lower than that of without particles in the Ni matrix. Pure abrasive nature of wear was reported for Ni-Al2O3 composite coating. This resulted in higher pin temperature for the composite coating with nanoparticles. The lower specific wear rate of Ni-Al2O3 is attributed to the hard nature of nanoparticles and resistance to thermal plastic deformation by the coating. Characterization of the coating was carried out by SEM, EDS, XRD analysis. GRAPHICAL ABSTRACT
C.R. Raghavendra, S. Basavarajappa, Irappa Sogalad, Vikas S. Kumbar, and Pavana S. Salunkhe
Elsevier BV
G.T Danappa, C.R Raghavendra, R.P Swamy, and Kishan Naik
Elsevier BV
C.R. Raghavendra, S. Basavarajappa, Irappa Sogalad, and VinayKumar Kallappa Saunshi
Elsevier BV
C.R. Raghavendra, Kartik Hasavimath, and Kishan Naik
Elsevier BV
C.R. Raghavendra, S. Basavarajappa, Irappa Sogalad, and Santosh Kumar
Elsevier BV
C.R. Raghavendra, S. Basavarajappa, Irappa Sogalad, and Siddaligayya Mathad
Elsevier BV
C.R. Raghavendra, S. Basavarajappa, Irappa Sogalad, Kishan Naik, and K.Y. Karthik
Elsevier BV
C. R. Raghavendra, S. Basavarajappa, and Irappa Sogalad
Springer Science and Business Media LLC
RECENT SCHOLAR PUBLICATIONS
MOST CITED SCHOLAR PUBLICATIONS
Publications
Sl. No. Details of articles
1. C. R. Raghavendra, S. Basavarajappa, Irappa Sogalad " Multi-objective Optimization of Electrodeposition of Ni–Al2O3 Nano Composite Coating on Al6061 Substrate" Trans. Indian Inst. Of Metals 71 (2018) 2119-2132. (Springer publication) Q2, H-index 28
2. C. R. Raghavendra, S. Basavarajappa, Irappa Sogalad "Sliding Wear Behaviour of Ni-α- Al2O3 Nano Composite Coating at Elevated Temperatures " Colloid and Interface Science Communications 27 (2018) 18-25. (Elsevier publication), Q2, H-index 14
3. C. R. Raghavendra, S. Basavarajappa, Irappa Sogalad, "Analysis of Temperature field in Dry sliding wear test on Pin-on-Disc", Heat and Mass Transfer 55 (2019) 1545-1552. (Springer publication) Q4, H-index 64
4. Challakere Ramadas Raghavendra, Satyappa Basavarajappa, Irappa Sogalad, "Electrodepostion of Ni-nano composite coatings: A review" Inorganic and Nano-Metal Chemistry, Volume 43 (2020) 583-598 (Taylor and Francis publication). Q4, H-index 43
5. • C. R. Raghavendra, S. Basavarajappa, Irappa Sogalad, "Study on dry sliding wear behaviour of nanocomposite coatings – an extended Taguchi’s method " Tribology-Materials, Surfaces and Interfaces, Volume 15 (2021) 201-212 (Taylor and Francis publication). , Q4, H-index 14
6. C.R. Raghavendra,