Muzakka, . and Prastiyo, Nurul Huda Adi (2019) The Effect Of Heat Treatment Tempering With Temperature Variation And Holding Time On Mechanical Properties Of Ems Steel 45. Undergraduate thesis, Untag 1945 Surabaya.
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Abstract
EMS 45 steel is medium carbon steel which has the following composition: 0.52% C, 0.27% Si, 0.65% Mn, 0.15% P, 0.002% S, 0.02% Cu. Based on its use, this steel can be developed to have good mechanical properties, strong, tough and good tenacity by means of a heat treatment process.In this study heat treatment testing was used with a heating temperature of 900 0 C, with a holding time of 60 minutes, quenching the water medium then the tempering process was carried out. Tempering temperature variation of 500 0 C. 550 0 C, 600 0 C and variations in tempering holding times of 30, 60 and 90 minutes. The tests used are rockwell C test, impact test, and microstructure test.The highest hardness value can be seen in the EMS 45 steel material which has been hardened 900 0 C, holding time 60 minutes, quenching water with a hardness value of 88 HRC. And the lowest hardness value is on EMS 45 steel material which has tempered 600 0 C / 90 minutes with a value of 41.3 HRC. While the highest impact value is in EMS 45 steel material which has been tempered with a temperature of 600 0 C / 90 minutes with values E = 62.58 J and HI = 782.25 J / m2. And the lowest impact value is on EMS 45 steel material which has been hardened 900 0 C, holding time 60 minutes, quenching water with E = 44.04 J and HI = 550.5 J / m2.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | EMS 45 steel heat treatment process, tempering, cooling media, rockwell test, impact test |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin |
| Depositing User: | Users 26 not found. |
| Date Deposited: | 20 Dec 2021 03:38 |
| Last Modified: | 20 Dec 2021 03:38 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/12979 |
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