Rachman, Fathur (2019) Pengaruh Cutting Speed dan Abrasive Mass Flow Rate pada Abrasive Waterjet Cutting terhadap Laju Korosi Material Stainless Steel 316L. Sarjana thesis, Universitas Brawijaya.
Abstract
Material logam paling efektif dan signifikan digunakan di bidang medis adalah stainless steel. Stainless steel cukup dikenal untuk beberapa macam baja terutama karena ketahanannya terhadap korosi. Tipe 316L direkomendasikan oleh ASTM untuk pembuatan implan karena karbon rendah mengurangi kemungkinan munculnya kromium karbida yang biasanya mempengaruhi korosi intergranular. Dalam penelitian ini, abrasive waterjet cutting digunakan dalam proses pemotongan material stainless steel 316L untuk implementasi pembuatan biomaterial implan. Hasil akhir yang diteliti yaitu laju korosi dari masing-masing parameter pemotongan yang digunakan. Variabel cutting speed dan abrasive mass flow rate digunakan untuk melihat hasil laju korosi dari hasil pemotongan yang paling baik. Proses pengujian laju korosi menggunakan Simulated Body Fluid (SBF) larutan Phosphate-Buffered Saline yang diuji tidak pada suhu tubuh, melainkan pada suhu ruang. Cutting speed yang digunakan dalam penelitian ini yaitu 42,5; 85; 127,5 dan 170 (mm/min). Sedangkan abrasive mass flow rate yang digunakan juga empat variabel, yaitu 6, 9, 12 dan 15 (g/sec). Tekanan air yang digunakan sebesar 48.000 Psi dan stand-off distance sebesar 4 mm. Hasil dari penelitian menunjukkan bahwa peningkatan cutting speed akan meningkatkan laju korosinya. Berbanding terbalik dengan cutting speed, peningkatan abrasive mass flow rate akan menurunkan laju korosinya. Spesimen dengan variabel cutting speed 42,5 mm/min dan abrasive mass flow rate 15 g/sec memiliki laju korosi terendah, yaitu sebesar 0,40409 mm/year. Spesimen dengan variabel cutting speed 170 mm/min dan abrasive mass flow rate 6 g/sec memiliki laju korosi tertinggi, yaitu sebesar 0,87769 mm/year.
English Abstract
The most effective and significant metal material used in the medical field is stainless steel. Stainless steel is well known for several types of steel mainly because of its corrosion resistance. Type 316L is recommended by ASTM for the manufacture of implants because low carbon reduces the possibility of the appearance of chromium carbide which usually affects intergranular corrosion. In this study, abrasive waterjet cutting was used in the cutting process of stainless steel 316L materials for the implementation of implant biomaterials. The final results are corrosion rate from each cutting parameters. Cutting speed and abrasive mass flow rate variables are used to see the results of the corrosion rate from the best cutting results. Corrosion rate testing process using Simulated Body Fluid (SBF) Phosphate-Buffered Saline (PBS) solution which not tested at the body temperature, but take place at the room temperature. The cutting speed used in this study are 42.5; 85; 127.5 and 170 (mm/min). While the abrasive mass flow rate used are also four, those are 6, 9, 12 and 15 (g/sec). The water pressure used is 48,000 Psi and the stand-off distance is 4 mm. The result of this study indicate that an increase in cutting speed will increase the corrosion rate. In contrast to cutting speed, an increase in abrasive mass flow rate will reduce its corrosion rate. Specimen with variable cutting speed of 42.5 mm/min and abrasive mass flow rate of 15 g/sec has the lowest corrosion rate, which is equal to 0.40409 mm/year. Specimen with variable cutting speed of 170 mm/min and abrasive mass flow rate of 6 g/sec has the highest corrosion rate, which was 0.87769 mm/year.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2019/743/051906603 |
| Uncontrolled Keywords: | abrasive waterjet, stainless steel 316L, cutting speed, abrasive mass flow rate, laju korosi, |
| Subjects: | 600 Technology (Applied sciences) > 620 Engineering and allied operations > 620.1 Engineering mechanics and materials > 620.11 Engineering materials > 620.112 Properties of materials and nondestructive testing |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 31 Oct 2020 06:53 |
| Last Modified: | 31 Oct 2020 06:53 |
| URI: | http://repository.ub.ac.id/id/eprint/171935 |
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