Pengaruh Perlakuan Panas dan Penempaan terhadap Sifat Kekerasan dan Struktur Mikro pada Baja Laterit

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Herbirowo, Satrio; Irawan, Dedi, 2018, "Pengaruh Perlakuan Panas dan Penempaan terhadap Sifat Kekerasan dan Struktur Mikro pada Baja Laterit", https://hdl.handle.net/20.500.12690/RIN/TZNLFO, RIN Dataverse, V2

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Description

Indonesia memiliki sumber bijih nikel laterit dan batubara yang melimpah. Walaupun begitu, sumber daya ini belum dipertimbangkan sebagai bahan baku utama dalam industri baja Indonesia. Oleh karena itu, penelitian ini untuk mengetahui keunggulan yang dimiliki oleh baja laterit melalui proses perlakuan panas dan pembentukan logam serta potensinya. Baja nikel laterit dapat digunakan untuk aplikasi pada baja konstruksi jembatan dan bangunan karena memiliki kandungan nikel tinggi. Perilaku baja nikel laterit ini dapat ditingkatkan dengan cara perlakuan panas dan pembentukan logam. Penelitian ini disampaikan untuk mengetahui perilaku perlakuan panas terhadap perubahan struktur mikro dan nilai kekerasan yang terjadi pada baja nikel laterit. Perlakuan panas yang dilakukan meliputi pemanasan austenisasi pada suhu 1100 ºC kemudian dilakukan variasi pembentukan logam secara forging 1 dan 2 pass serta reduksi secara rolling. Karakterisasi sampel dengan pengujian metalografi menggunakan mikroskop optik dan pengujian kekuatan mekanik dilakukan dengan kekerasan permukaan. Hasil yang didapat menunjukkan perubahan struktur mikro pada baja nikel laterit setelah dilakukan perlakuan panas dan penempaan menuju sifat keuletan tinggi. Struktur mikro yang terbentuk terdiri dari austenit dan perlit dan bentuk setelah pembentukan logam semakin kecil dan pipih. Nilai kekerasan dapat meningkat saat dilakukan proses tempa dan menurun saat proses pengerolan jika dibandingkan dengan sampel as-cast dan peningkatan nilai kekerasan tertinggi pada sampel baja laterit A dengan 2 pass tempa sebesar 201,6 HB.

Prosiding SENAMM IX 2016, Hal 386-390

(2016)

Subject

Physics

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	Gambar 1. (a) as-cast (b) Rolling (c) Forging.jpg JPEG Image - 175.8 KB Published Nov 5, 2018 1 Download MD5: c45da8b14f9f4bf35cb0fea6bf81d1e6 Gambar 1. (a) as-cast (b) Rolling (c) Forging Data	Access File Download Options Download
	Pengaruh Perlakuan Panas dan Penempaan terhadap Sifat Kekerasan dan Struktur Mikro pada Baja Laterit.pdf Adobe PDF - 682.6 KB Published Nov 5, 2018 65 Downloads MD5: 7396ccf21d0cadef500567e95c3b7984	Access File Download Options Download
	Tabel 1. Komposisi kimia baja laterit.JPG JPEG Image - 18.7 KB Published Nov 5, 2018 1 Download MD5: b72506cf5e77d941101982209eb3ff1d Tabel 1. Komposisi kimia baja laterit Data	Access File Download Options Download
	Tabel 2. Data Pengujian Kekerasan Baja Laterit.JPG JPEG Image - 40.1 KB Published Nov 5, 2018 2 Downloads MD5: c2a0508e2f8a757f117c08fc14ec5a23 Tabel 2. Data Pengujian Kekerasan Baja Laterit Data	Access File Download Options Download

Citation Metadata

Dataset Persistent ID	hdl:20.500.12690/RIN/TZNLFO
Publication Date	2018-05-16
Title	Pengaruh Perlakuan Panas dan Penempaan terhadap Sifat Kekerasan dan Struktur Mikro pada Baja Laterit
Author	Herbirowo, Satrio (Pusat Penelitian Metalurgi dan Material) Irawan, Dedi (Pusat Penelitian Metalurgi dan Material)
Contact	Use email button above to contact. Herbirowo, Satrio (Pusat Penelitian Metalurgi dan Material)
Description	Indonesia memiliki sumber bijih nikel laterit dan batubara yang melimpah. Walaupun begitu, sumber daya ini belum dipertimbangkan sebagai bahan baku utama dalam industri baja Indonesia. Oleh karena itu, penelitian ini untuk mengetahui keunggulan yang dimiliki oleh baja laterit melalui proses perlakuan panas dan pembentukan logam serta potensinya. Baja nikel laterit dapat digunakan untuk aplikasi pada baja konstruksi jembatan dan bangunan karena memiliki kandungan nikel tinggi. Perilaku baja nikel laterit ini dapat ditingkatkan dengan cara perlakuan panas dan pembentukan logam. Penelitian ini disampaikan untuk mengetahui perilaku perlakuan panas terhadap perubahan struktur mikro dan nilai kekerasan yang terjadi pada baja nikel laterit. Perlakuan panas yang dilakukan meliputi pemanasan austenisasi pada suhu 1100 ºC kemudian dilakukan variasi pembentukan logam secara forging 1 dan 2 pass serta reduksi secara rolling. Karakterisasi sampel dengan pengujian metalografi menggunakan mikroskop optik dan pengujian kekuatan mekanik dilakukan dengan kekerasan permukaan. Hasil yang didapat menunjukkan perubahan struktur mikro pada baja nikel laterit setelah dilakukan perlakuan panas dan penempaan menuju sifat keuletan tinggi. Struktur mikro yang terbentuk terdiri dari austenit dan perlit dan bentuk setelah pembentukan logam semakin kecil dan pipih. Nilai kekerasan dapat meningkat saat dilakukan proses tempa dan menurun saat proses pengerolan jika dibandingkan dengan sampel as-cast dan peningkatan nilai kekerasan tertinggi pada sampel baja laterit A dengan 2 pass tempa sebesar 201,6 HB. Prosiding SENAMM IX 2016, Hal 386-390 (2016)
Subject	Physics
Depositor	Wulandari, Desi
Deposit Date	2018-04-05

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