Universal Journal of Mechanical Engineering Vol. 8(6), pp. 298 - 304
DOI: 10.13189/ujme.2020.080602
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Effect on the Mechanical Properties of Grey Cast Iron with Variation of Molybdenum and AS – Cast Alloying Elements

Sujith Bobba ^1,*, Mukkollu Sambasiva Rao ², B. Harish Babu ¹, Z. Leman ^3
1 Department of Applied Engineering, Vignan's Foundation for Science Technology & Research (VFSTR), Guntur, AP, India
² National Institute of Foundry & Forge Technology, Ranchi, Jharkhand, India
³ Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Malaysia

ABSTRACT

Metal casting is a predominant manufacturing advancement for adeptly fabricating components with complicated shapes. Many of the industrial castings produced are made from steel and iron alloys with attractive properties and less production cost. In this research work, the effect of molybdenum addition to class 30 type grey cast iron for the production of high performance cast iron (HPCI) has been carried out. Molybdenum inclusion not only refines the majority of graphite flakes but also increases the length of a small fraction of graphite flakes and improves the thermal conductivity by a percentage up to 2.2% fixed as per the research conducted, while excessive molybdenum insertion not only induces precipitation and solution reinforcement but it will also enhance the ultimate tensile strength (UTS) and hardness. According to research conducted, it was proved that molybdenum inclusion of 120 gm showed a functional way to spread HPCI with enhancing mechanical and thermal properties in grey cast iron when compared to other percentages of molybdenum used and also the average difference in the percentage of hardness in each type of molybdenum sample is about 5 to 10 %. Finally, after the tests, it was also predicted that the molybdenum's hardenability property was beneficial for white cast iron production which will rise the wear resistance property.

KEYWORDS
Molybdenum, Grey Cast Iron, High Performance Cast Iron (HPCI), Ultimate Tensile Strength (UTS), Hardness

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Sujith Bobba , Mukkollu Sambasiva Rao , B. Harish Babu , Z. Leman , "Effect on the Mechanical Properties of Grey Cast Iron with Variation of Molybdenum and AS – Cast Alloying Elements," Universal Journal of Mechanical Engineering, Vol. 8, No. 6, pp. 298 - 304, 2020. DOI: 10.13189/ujme.2020.080602.

(b). APA Format:
Sujith Bobba , Mukkollu Sambasiva Rao , B. Harish Babu , Z. Leman (2020). Effect on the Mechanical Properties of Grey Cast Iron with Variation of Molybdenum and AS – Cast Alloying Elements. Universal Journal of Mechanical Engineering, 8(6), 298 - 304. DOI: 10.13189/ujme.2020.080602.