Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants

Ni-Cr based composites with and without the addition of solid lubricants (MoS2, Ag and CaF2) were prepared by powder metallurgy method. The samples were sintered at different temperatures (1000oC, 1100oC and 1200oC) under controlled atmosphere and various holding times. The physical properties such...

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Main Authors: Mohamad, W.F., Khan, A.A., Ahmad, F., Yassin, A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23168 /
Published: Universiti Malaysia Pahang 2020
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092673744&doi=10.15282%2fJMES.14.2.2020.02.0514&partnerID=40&md5=a92fb736523dc2bda41748b266bcd818
http://eprints.utp.edu.my/23168/
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spelling utp-eprints.231682021-08-19T06:10:09Z Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants Mohamad, W.F. Khan, A.A. Ahmad, F. Yassin, A. Ni-Cr based composites with and without the addition of solid lubricants (MoS2, Ag and CaF2) were prepared by powder metallurgy method. The samples were sintered at different temperatures (1000oC, 1100oC and 1200oC) under controlled atmosphere and various holding times. The physical properties such as sintered density, relative density and porosity were studied. The microstructures and phase studies of the Ni-Cr based composites were conducted using Scanning Electron Microscope (SEM) and X-Ray Diffraction Analysis (XRD) while the hardness of the composites was measured by the Vickers Micro Hardness Tester. The results revealed that as the sintering temperature was increased, the sintered density, relative density and hardness also increased while the porosity was reduced. At the sintering temperature of 1200oC, the relative density reached its maximum value. SEM and XRD analysis confirmed the existence of MoS2 and Ag in sintered samples. MoS2 and Ag were not mainly dissolved and/or decomposed even after sintering at 1200oC. © The Authors 2020. Universiti Malaysia Pahang 2020 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092673744&doi=10.15282%2fJMES.14.2.2020.02.0514&partnerID=40&md5=a92fb736523dc2bda41748b266bcd818 Mohamad, W.F. and Khan, A.A. and Ahmad, F. and Yassin, A. (2020) Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants. Journal of Mechanical Engineering and Sciences, 14 (2). pp. 6548-6556. http://eprints.utp.edu.my/23168/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Ni-Cr based composites with and without the addition of solid lubricants (MoS2, Ag and CaF2) were prepared by powder metallurgy method. The samples were sintered at different temperatures (1000oC, 1100oC and 1200oC) under controlled atmosphere and various holding times. The physical properties such as sintered density, relative density and porosity were studied. The microstructures and phase studies of the Ni-Cr based composites were conducted using Scanning Electron Microscope (SEM) and X-Ray Diffraction Analysis (XRD) while the hardness of the composites was measured by the Vickers Micro Hardness Tester. The results revealed that as the sintering temperature was increased, the sintered density, relative density and hardness also increased while the porosity was reduced. At the sintering temperature of 1200oC, the relative density reached its maximum value. SEM and XRD analysis confirmed the existence of MoS2 and Ag in sintered samples. MoS2 and Ag were not mainly dissolved and/or decomposed even after sintering at 1200oC. © The Authors 2020.
format Article
author Mohamad, W.F.
Khan, A.A.
Ahmad, F.
Yassin, A.
spellingShingle Mohamad, W.F.
Khan, A.A.
Ahmad, F.
Yassin, A.
Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
author_sort Mohamad, W.F.
title Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
title_short Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
title_full Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
title_fullStr Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
title_full_unstemmed Phase a nal ysis and m icrostructure s tudy of s intered Ni-Crc omposites containing MoS2, Ag and CaF2additives as solid l ubricants
title_sort phase a nal ysis and m icrostructure s tudy of s intered ni-crc omposites containing mos2, ag and caf2additives as solid l ubricants
publisher Universiti Malaysia Pahang
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092673744&doi=10.15282%2fJMES.14.2.2020.02.0514&partnerID=40&md5=a92fb736523dc2bda41748b266bcd818
http://eprints.utp.edu.my/23168/
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score 11.62408

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