Statement of Problems This study is intended to investigate the effects of heat treatment particularly quenching on the mechanical properties of mild steel especially on its strength using different quenching medium.
The objective of the study is to answer the following questions.
1. What is the strength difference between raw mild steel and to the mild steel that undergo quenching process in the following quenching medium: used engine oil, water, boiler water?
2. Which is the strongest material after it was been quench in used engine oil, water and boiler water?
Significance of the Study The importance of this study is to determine the effect of quenching solutions particularly: used engine oil, water and boiler water to the strength of mild steel. This study also aims to define whether the metal that undergo quenching process is stronger or weaker compared to the same metal but did not undergo quenching
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Heat treatment involves the controlled process of heating or cooling the metal at a certain high temperature to bring out its desirable properties. There are different heating techniques that can be applied to change the properties of metal such as annealing, normalizing, tempering, strengthening and quenching. R.Wojes (2017) states that the quenching rate is also a factor to be considered on choosing the quenchant or cooling media. Because the slower the quench rate, the thermodynamic forces has more opportunity to change the microstructure of the materials. That’s the reason why different media is being used depends on the future application of the processed material.
Noor Mazni Ismail, et al. (2016) states that quenching is the process to improve the hardness of metal. Also the best quenching media to acquired maximum hardness is water, it is because water has a fast quenching rate than
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This paper will first discuss the development of the steel industry. Next, it will examine steel, and in the impact it had on the transportation industry. Finally, it will discuss systematic management practices of this time and how they gave birth to the scientific approach that is still in use today.
Conduction, Convection, and Radiation Heat transfer is the way heat moves through matter to change the temperature of other objects. There are three types of heat transfers, Conduction, Convection, and Radiation. The first kind of heat transfer, conduction, is heat transferring through direct contact of materials. This would be the same thing as a pan on the stove. The heat from the stove touches the pan directly, therefore making the pan hot.
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AIM: Determination of Viscosity of Lubricating oil at different temperatures by Redwood Viscometer No.1 or 2
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