Annealing Effect On The Microstructure Toward Tensile Strength And Fatigue Strength Of Motorcycle Wheel Shaft Of Low Carbon Steel

Fauzan, Achmad (2013) Annealing Effect On The Microstructure Toward Tensile Strength And Fatigue Strength Of Motorcycle Wheel Shaft Of Low Carbon Steel. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

The Objective of this research is to determine the effect of annealing on physical and mechanical properties of the motorcycle wheel shaft. The tests conducted are testing the chemical composition, hardness, tensile strength, fatigue strength, and microstructure. The methods to conduct in this study apart from literature, the authors also conducted the test. The material to be studied is a low carbon steel, specimens will be used are without heat treatment and with heat treatment. The annealing processes was conducted by heating the material up to 9000C with holding time for 60 minutes and then cooling it slowly in the furnace. Physical properties of the specimens tested by testing the chemical composition and microstructure observation, while the mechanical properties determined by hardness testing, tensile testing, and fatigue testing. The results showed that the chemical composition of the material shaft wheel motorcycle included in the low-carbon steel (C < 0.2 %). Microstructure observations, the specimens before annealing obtained ferrite and pearlite phase with a small grain size. Whereas, after annealing has a bigger grain size and dominated by ferrite. Hardness test results before annealing has the highest value 205.69 Kg/mm2but after the annealing has the highest value 93.81 Kg/mm2. Tensile strength test results before annealing has the highest value 56.18 Kg/mm2 but after the annealing have the highest value 39.76 Kg/mm2. And for fatigue strength testing maximum load that can be imposed before annealing 33.30 Kg/mm2 whereas after annealing the maximum load that can be imposed 17.93 Kg/mm2.

Item Type: Karya ilmiah (Skripsi)
Uncontrolled Keywords: annealing, tensile strength, fatigue strength, low carbon steel
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: Fakultas Teknik > Teknik Mesin
Depositing User: Ari Fatmawati
Date Deposited: 28 Jan 2014 07:42
Last Modified: 28 Jan 2014 07:43
URI: http://eprints.ums.ac.id/id/eprint/27505

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