Sambodo, Gatot Tri and , Ir. Pramuko Ilmu Purboputro, MT. (2021) Penelitian Tugas Akhir Analisa Pengaruh Proses Annealing Teradap Kekerasan Dan Struktur Mikro Pada Baja St60 Dengan Variasi Temperatur 750°, 800°, 850°, 900°C Dan Holding Time 15 Menit, 30 Menit, 45 Menit,Dan 60 Menit. Skripsi thesis, Universitas Muhammadiyah Surakarta.
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Abstract
This research was conducted to investigate the effect of temperature and holding time variations on the hardness and microstructure of ST 60 steel in the annealing process. The annealing process is widely used to remove residual stresses in the production process so that steel becomes more ductile. in this study using temperatures (750 ° C), (800 ° C), (850 ° C) and (900 ° C). In this study the annealing process was held with a holding time of 15 minutes, 30 minutes, 45 minutes, 60 minutes. The results of this study indicate that at a temperature of 750 ° C and holding time 15 minutes, 30 minutes, 45 minutes, 60 minutes. the hardness value has an average of 62 HRA. at a temperature of 800 ° C with a holding time of 15 minutes, 30 minutes, 45 minutes, 60 minutes the average hardness value was 59.67 HRA. then at a temperature of 850 ° C with a holding time of 15 minutes, 30 minutes, 45 minutes, 60 minutes the average hardness value is 53.67 HRA and at a temperature of 900 ° C with a temperature of 15 minutes, 30 minutes, 45 minutes, 60 minutes is 53 HRA. Raw material has an average hardness value of 66.7 HRA. so the raw material after experiencing the annealing process has decreased. Thus the higher the temperature and holding time in the annealing process affects the hardness of the material.
| Item Type: | Karya ilmiah (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Annealing , Waktu Tahan , Struktur Mikro, Kekerasan |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | GATOT TRI SAMBODO |
| Date Deposited: | 08 Jun 2021 04:42 |
| Last Modified: | 08 Jun 2021 04:42 |
| URI: | http://eprints.ums.ac.id/id/eprint/91514 |
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