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Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer

Ikpambese, Kumaden Kuncy J.D. Amine M. Anyebe

Subject area: Science,Engineering and Technology  ·  Area of research: Materials/Mechanical Engineering

Abstract

Evaluation of mechanical properties and microstructure of mild steel treated using automotive wastes as energizer was carried out in this study. Automotive wastes (plastics, rubber, wood, fabric, non-ferrous metals, leather, glass, paper, textile, and dirt) were obtained and shredded, ground, sieved to sieve size of ?300 ?m and characterized. Seven (7) mild steel specimens cut from steel of 4 mm diameter were inserted into carburizing boxes using charcoal as carbon source with different percentage compositions of charcoal to automotive wastes (100:0, 90:10, 80:20, 70:30, 60:40 and 50:%50%). The same procedure was repeated by heat treating six specimens of mild steel without charcoal as carbon source by using different composition of automotive waste (0%, 10%, 20%, 30%, 40% and 50%) of the total volume of the carburizing boxes. The tests carried out to evaluate the mild steel specimens were hardness, impact strength, tensile strength, and microstructure examination. Results of characterization showed that the wastes contain different concentration of Iron, Nickel, Copper, Lead, Magnesium, Zinc, Manganese and Aluminium. Mechanical properties namely hardness, impact strength, tensile and percentage elongation were observed generally to improve with and without charcoal as carbon source. However, the level of enhancement was more pronounced with specimens treated with charcoal as carbon source. Hardness values increased with increasing percentage composition, as the highest hardness values of 295 at 10% of automotive waste and 90% of charcoal, while specimen with 50% composition of automotive waste alone gave the highest hardness of 172. The highest impact strength values of 91.73 J and 60.00 J were obtained with the 50% Charcol:50% automotive waste and 10% of automotive wastes without charcoal respectively. An optimum tensile strength value of 660.35 N/mm2 obtained at 70% Charcoal and 30% automotive waste. While tensile optimum value 5.314kN/m2 was obtained with 40% of automotive waste in the absence of charcoal as carbon source. This will lead to cost reduction by avoiding the usage of additional alloying element. It is clear that automotive waste as an energizer can be used as substitute to conventional energizers in heat treatment of mild steel

Keywords

Automotive wastes, Energizer, Mechanical properties, Microstructure, Mild steel,

References

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How to cite this paper

Ikpambese, Kumaden Kuncy, J.D. Amine, M. Anyebe "Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer" Iconic Research And Engineering Journals Volume 5 Issue 8 2022 Page 152-161
Ikpambese, Kumaden Kuncy, J.D. Amine, M. Anyebe "Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer" Iconic Research And Engineering Journals, vol. 5, no. 8, Feb. 2022
Ikpambese, Kumaden Kuncy, J.D. Amine, M. Anyebe (2022). Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer. Iconic Research And Engineering Journals, 5(8).
Ikpambese, Kumaden Kuncy, J.D. Amine, M. Anyebe "Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer" Iconic Research And Engineering Journals, vol. 5, no. 8, Feb. 2022.
@article{1703205,
      author = {Ikpambese, Kumaden Kuncy, J.D. Amine, M. Anyebe},
      title = {Evaluation Of Mechanical Properties and Microstructure of Heat-Treated Mild Steel Using Automotive Wastes as Energizer},
      journal = {Iconic Research And Engineering Journals},
      year = {2022},
      volume = {5},
      number = {8},
      pages = {152-161},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1703205.pdf},
      abstract = {Evaluation of mechanical properties and microstructure of mild steel treated using automotive wastes as energizer was carried out in this study. Automotive wastes (plastics, rubber, wood, fabric, non-ferrous metals, leather, glass, paper, textile, and dirt) were obtained and shredded, ground, sieved to sieve size of ?300 ?m and characterized. Seven (7) mild steel specimens cut from steel of 4 mm diameter were inserted into carburizing boxes using charcoal as carbon source with different percentage compositions of charcoal to automotive wastes (100:0, 90:10, 80:20, 70:30, 60:40 and 50:%50%). The same procedure was repeated by heat treating six specimens of mild steel without charcoal as carbon source by using different composition of automotive waste (0%, 10%, 20%, 30%, 40% and 50%) of the total volume of the carburizing boxes. The tests carried out to evaluate the mild steel specimens were hardness, impact strength, tensile strength, and microstructure examination. Results of characterization showed that the wastes contain different concentration of Iron, Nickel, Copper, Lead, Magnesium, Zinc, Manganese and Aluminium. Mechanical properties namely hardness, impact strength, tensile and percentage elongation were observed generally to improve with and without charcoal as carbon source. However, the level of enhancement was more pronounced with specimens treated with charcoal as carbon source. Hardness values increased with increasing percentage composition, as the highest hardness values of 295 at 10% of automotive waste and 90% of charcoal, while specimen with 50% composition of automotive waste alone gave the highest hardness of 172. The highest impact strength values of 91.73 J and 60.00 J were obtained with the 50% Charcol:50% automotive waste and 10% of automotive wastes without charcoal respectively. An optimum tensile strength value of 660.35 N/mm2 obtained at 70% Charcoal and 30% automotive waste. While tensile optimum value 5.314kN/m2 was obtained with 40% of automotive waste in the absence of charcoal as carbon source. This will lead to cost reduction by avoiding the usage of additional alloying element. It is clear that automotive waste as an energizer can be used as substitute to conventional energizers in heat treatment of mild steel},
      keywords = {Automotive wastes, Energizer, Mechanical properties, Microstructure, Mild steel,},
      month = {February},
  }