Sumantri, Mochammad Fachry (2019) Analisis Pengaruh Variasi Heat Treatment Pada Baja ASTM A53 Terhadap Struktur Mikro, Kekerasan, Tensile Strength, dan Bending. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pipa merupakan suatu teknologi dalam mengalirkan fluida seperti minyak, gas atau air dalam jumlah besar dan jarak yang jauh melalui laut atau daerah di lepas pantai. Jenis baja yang sering digunakan untuk penyaluran minyak dan gas dalam industri perminyakan dan gas alam adalah salah satunya baja ASTM A53. Penelitian ini merupakan eksperimen pada material baja ASTM A53 dengan variasi proses heat treatment terhadap kekerasan, kekuatan tarik, struktur mikro, dan kekuatan bending. Variasi Proses heat treatment yang digunakan adalah hardening, normalizing, annealing, dan austempering dan tanpa perlakuan panas. Perlakuan panas ini akan mempengaruhi sifat mekanik dan struktur mikro material tersebut. Hasil dari penelitian ini menunjukan bahwa material yang diberi heat treatment dengan jenis hardening memiliki karakteristik mikro struktur martensite, dengan nilai kekerasan, bending strength, dan tensile strength yang paling tinggi. Pada proses perlakuan panas austempering karakteristik mikro struktur yang terbentuk adalah bainite, dengan nilai kekerasan, bending strength, dan tensile strength ke-2 tertinggi setelah hardening. Pada material yang tidak diberi heat treatment karakteristik mikro stuktur yang ada adalah pearlite dan ferrite dengan komposisi yang masih seimbang, dengan nilai kekerasan, bending strength, dan tensile strength yang tinggi. Pada proses perlakuan panas normalizing karakteristik mikro struktur masih berbentuk pearlite dan ferrite tetapi struktur pearlite mulai berkurang, dengan nilai kekerasan, bending strength, dan tensile strength yang rendah. Pada proses perlakuan panas annealing karakteristik mikro struktur masih berbentuk pearlite dan ferrite tetapi butirannya semakin halus, dengan nilai kekerasan, bending strength, dan tensile strength yang paling rendah dibandingkan perlakuan panas yang lain.
==================================================================================================================Pipe is a technology in flowing fluids such as oil, gas or water in large quantities and long distances by the sea or offshore areas. ASTM A53 steel is the type of steel that is often used for the distribution of oil and gas in the oil and natural gas industry. This research is an experiment of ASTM A53 steel material with a variety of heat treatment processes on hardness, tensile strength, micro-structure, and bending strength. Variations the process of heat treatment used is hardening, normalizing, annealing and austempering and without heat treatment. This heat treatment will affect the mechanical properties and micro-structure. The results of this research shows that the heat treated material with hardening type has the micro-structure characteristics of the martensite structure, with the highest hardness, bending strength and tensile strength. In the austempering heat treatment process, the micro-strucutre characteristics of the formed structure are bainite, with the second highest hardness, tensile, and bending strength after hardening. In the material that is not heat treated, the micro-structure characteristics are pearlite and ferrite with compositions that are still balanced, with high hardness, tensile and bending strength. In the normalizing heat treatment process, the micro-structure characteristics are still in the form of pearlite and ferrite but the pearlite structure begins to decrease, with low hardness, tensile and bending strength. In the annealing heat treatment process, the micro-structure characteristics are still in the form of pearlite and ferrite but the granules are finer, with the lowest hardness, tensile, and bending strength compared to other heat treatments.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Baja ASTM A53, Bending, Heat Treatment, Kekerasan, Struktur Mikro, Tensile. |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Sumantri Mochammad Fachry |
| Date Deposited: | 24 Jun 2024 07:11 |
| Last Modified: | 24 Jun 2024 07:11 |
| URI: | http://repository.its.ac.id/id/eprint/68628 |
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