International Journal For Multidisciplinary Research

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Improvement of Properties Jet Mechanics in A3S High Strength Steel

Author(s) Ramazani Mulenda Lens, Mulimbi Mutoke Aguethan
Country Congo (Democratic)
Abstract The objective continued in this work is to improve the characteristics mechanical properties of high- strength A3S steel produced at the Panda Central Workshops of Gecamines. The steel grade studied contains quantities​ important manganese​ in proportions ranging from 2 to 4.6%. Various treatments thermal has summer realized in view to improve machinability while​ designing properties​ mechanics that meet the requirements of their use.Samples in the raw casting state have presented a hardness of 407.8 HB and a resilience of 4.3 J/cm 2. Annealing at 773°C followed by holding for 4 hours and slow cooling in the furnace to a speed of 20°C per hour helps to reduce hardness​ up to 200HB with increased resilience up to 28.3 J/cm 2. A quench was then carried out and made it possible to retain a heating temperature of 900°C and water as a cooling medium; which allowed to increase hardness and resilience until values respective of 343 HB and 19.7 J/cm 2. The final result obtained after tempering leads to a hardness of 217 HB and a resilience of 19.7 J/ cm2.It emerges from the tests realized that it is possible to modify and improve the hardness and resilience of the studied grade using thermal cycles appropriate.
Keywords Steel, Hardness, Annealing, Tempering
Field Engineering
Published In Volume 6, Issue 5, September-October 2024
Published On 2024-10-05
Cite This Improvement of Properties Jet Mechanics in A3S High Strength Steel - Ramazani Mulenda Lens, Mulimbi Mutoke Aguethan - IJFMR Volume 6, Issue 5, September-October 2024. DOI 10.36948/ijfmr.2024.v06i05.28310
DOI https://doi.org/10.36948/ijfmr.2024.v06i05.28310
Short DOI https://doi.org/g688q3
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