PENGARUH PERLAKUAN PANAS TERHADAP LAJU KEAUSAN EROSI BAJA SKD11

Arbi Maulana, . (2025) PENGARUH PERLAKUAN PANAS TERHADAP LAJU KEAUSAN EROSI BAJA SKD11. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.

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Abstract

Erosive wear is one of the main causes of performance degradation in industrial components; therefore, efforts to improve material resistance through heat treatment are necessary. This study aims to investigate the effect of heat treatment on the erosion resistance of SKD11 steel by comparing as-cast, quenching, normalizing, and annealing conditions. The heat treatment was carried out at 1000°C for 1 hour, followed by oil quenching, normalizing, and annealing processes. The specimens were tested using the Vickers hardness test to measure hardness, sand blasting at a 30° impact angle with 0.49 MPa nozzle pressure using silica sand (SiO₂) to determine erosion rate, and further analyzed by SEM-EDS and XRD to observe microstructural changes. The results showed that the quenched condition produced the highest hardness and the lowest erosion rate due to the formation of martensiteic structure with homogeneous carbide distribution. The annealed condition exhibited the lowest hardness dominated by γ-austenite matrix, while normalizing resulted in intermediate values with a balanced mechanical property profile. Meanwhile, the as-cast condition showed lower hardness than quenching but higher than annealing, with relatively reduced erosion resistance due to austenitic matrix and eutectic carbides. In conclusion, quenching proved to be the most effective treatment in improving the erosion resistance of SKD11 steel. Keywords: SKD11 Steel, Heat Treatment, Microstructure, Hardness, and Erosive Wear

Item Type: Thesis (Skripsi)
Additional Information: [No.Panggil: 2110311001] [Pembimbing: Riki Hendra Purba] [Pembimbing: Armansyah] [Penguji 1: Sigit Pradana] [Penguji 2: Fahrudin]
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: ARBI MAULANA
Date Deposited: 19 Jan 2026 07:44
Last Modified: 19 Jan 2026 07:44
URI: http://repository.upnvj.ac.id/id/eprint/40959

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