Ahmad Baihaqi, . (2025) KARAKTERISASI KEAUSAN EROSI BAJA SKD11 SETELAH PROSES QUENCHING DAN TEMPERING. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.
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Abstract
Erosive wear reduces the performance of industrial components; therefore, improving material resistance through heat treatment is required. This study aims to analyze the effect of quenching and tempering processes on the microstructure, hardness, and erosive wear resistance of SKD11 steel. The specimens were prepared with dimensions of 50 mm × 50 mm × 10 mm, then subjected to austenitizing at 1000°C for 1 hour, followed by quenching in oil, and tempering at 300°C, 350°C, 400°C, 450°C, and 500°C for 1 hour. Microstructural and surface morphology analyses were carried out using an Optical Microscope, SEM-EDS, and XRD. Hardness tests were conducted using the Vickers method, while erosive wear tests were performed using sand blasting at impact angles of 30°, 60°, and 90°. The results show that the as-cast specimen exhibited the lowest hardness with ductile behavior. The quenched specimen had the highest hardness but tended to be brittle. The quenching–tempering process reduced brittleness, with tempering at 400°C producing optimum hardness, while increasing the tempering temperature to 500°C decreased hardness. Erosion tests revealed that the as-cast specimen experienced a higher wear rate compared to quenched and quenched–tempered specimens, with the highest erosion occurring at a 30° impact angle. SEM analysis indicated that the dominant wear mechanism was micro-cutting. Overall, quenching–tempering at 400°C provided the best balance of microstructure, hardness, and erosive wear resistance. Keywords: SKD11 Steel, Heat Treatment, Microstructure, Hardness, and Erosive Wear
| Item Type: | Thesis (Skripsi) |
|---|---|
| Additional Information: | [No.Panggil: 2110311019] [Pembimbing: Riki Hendra Purba] [Pembimbing: Armansyah] [Penguji 1: Sigit Pradana] [Penguji 2: Nicky Yongkimandalan] |
| Uncontrolled Keywords: | SKD11 Steel, Heat Treatment, Microstructure, Hardness, and Erosive Wear |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin (S1) |
| Depositing User: | AHMAD BAIHAQI |
| Date Deposited: | 19 Jan 2026 07:30 |
| Last Modified: | 19 Jan 2026 07:31 |
| URI: | http://repository.upnvj.ac.id/id/eprint/40960 |
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