Comparative study of spark plasma sintering features on the densification of Ni-Cr binary alloys

B. J. Babalola, M. B. Shongwe, B. A. Obadele, P. A. Olubambi, O. O. Ayodele, A. L. Rominiyi, S. O. Jeje

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)


Spark plasma sintering (SPS) has been widely regarded as an advanced powder consolidation technique hich helps in the development of array of engineering materials. Many have been reported in the literature about sintering parameters such as temperature, pressure, heating rate and holding time. However, little or no reports has been made on some of the intricate features such as process time(s), power SPS (KW), pressing speed (mm/min), and average pressing force (KN) on which intering parameters are directly related to. This study aims to investigate the behaviour of spark plasma sintered Ni-17Cr binary alloys with emphasis on the densification, hardness value and spark plasma sintering features such as process time (s), power SPS (KW), pressing speed (mm/min), and the average pressing force (KN). Nickel and chromium powders were milled individually using High energy ball milling for durations of 5hr, 10 hr prior to mixing and subsequent sintering. The sintered 5 hr and 10 hr milled Ni-17Cr binary alloys attained relative densities of 98.72 % and 99.1 % respectively. The Microstructural morphology was examined using Scanning electron microscopy (SEM). The sintered 10 hr milled Ni-17Cr binary alloy revealed the higher hardness.

Original languageEnglish
Article number01004
JournalMATEC Web of Conferences
Publication statusPublished - Dec 10 2018
Externally publishedYes
Event5th International Conference on Mechanical, Materials and Manufacturing, ICMMM 2018 - Orlando, United States
Duration: Oct 13 2018Oct 15 2018

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)


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