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Pengembangan Baja Laterit Modifikasi A588 Menggunakan Proses Termomekanikal Diikuti dengan Proses Temper Temperatur Rendah untuk Aplikasi Baja Tahan Cuaca Rohmah, Miftakhur; Irawan, Dedi; Utama, Dedi P.; Romijarso, Toni B.
TEKNIK Vol. 42, No. 2 (2021): August 2021
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i2.37221

Abstract

Laterite Steel A-588 has the potential to be a high strength low alloy for Corten steel application. Laterite steel A-588 is developed through a thermomechanical process followed by a tempering process to obtain high strength and corrosion resistance. This study aims to determine the correlation between the addition of nickel content, the variation of the cooling rate during heat treatment to the mechanical properties, and the corrosion resistance of A-588 laterite steel. The Cu, Cr, Ni, P, and Si elements significantly impact microstructure transformation. Laterite Steel A-588 with nickel and thermo-mechanical process variation has been focused on in this research. Laterite steel with 0,42%, 1%, 2%, and 3% nickel varied was homogenized, hot rolled, and heat treated with three cooling variations by water, oil, and air. They are processed with 150 C tempering. Low tempering temperature caused fine carbide precipitation and phase transition of martensite to bainite. This resulted in bainite as the final microstructure, lath tempered martensite, carbide, and ferrite. 3% Ni with a fast cooling rate increased the tempered martensite and bainite phase formation. It allowed the strength and hardness to increase relatively, followed by decreased elongation and corrosion resistance caused by the galvanic reaction. Most optimal of mechanical properties determined at a sample with 2% nickel in a water medium (strength 1203 MPa, elongation 10%, hardness 404 BHN, corrosion rate 1,306 mpy).
Co-Authors AA Sudharmawan, AA Abror, Darul Afifah, Siti Agustu Sholeh Pujokaroni Amaliah, Khusnatul Andini, Nesi Anti Angin, Regina Grasia Perangin Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Anton Rahmadi Apriadi, Rimbawan Apriyadi, Rimbawan Arzeti, Varistra Ripana Aswita Emmawati Ayu Pratama Putri, Diah Azizah, Btari Nur Azmiyati, Afifah Banin, Maghfirotin Marta Basuki, stevani Bernatal Saragih Bernatal Saragih Bernatal Saragih Candra Wahyuni Candrawargani, Devy Tri Carolina, Debi Chiril, Augustin Mustika Chusnul Hidayat dedi irawan Dewi, Aninda Adistyana Diana Ermawati Dilly Dessy Fauzyah Dwi Noor Tang Dwinanda R, Elvira Dyah Ari Susanti Eddy S Siradj Ella, Ella Widya RIzki Emmawati, Aswita F. Shoufika Hilyana FAITULLAH ., FAITULLAH Fatria, Mega Fauziyah, Eni Febriyanti, Venta Fernandez, Dahlia Frameilia, Dila Fridya Oktavianti Soliviana Gustiana, Eka Hadi Suprapto Hali, Ali Usman Hamka Hidayah, Khikmatul Hidayat, Khansa Fitria Latifa Hudawati, Nurul Husnul Khotimah Rustam Ibnu Rusydi Iddris Salam Indah Tri Jumiarti Isak Budi Setionugroho Islamiati, Eny Johny Wahyuadi Soedarsono Junita, Nadia Kartika Sari Kartika Sari Kartika Sari Khafid Ismail Khansa Fitria Latifa Hidayat Khusna, Cicin Amalia Kiki Puspitasari Krishna Purnawan Candra Kristina, Vienti Elisa Kumalasari, Eri Puji Lalasari, Latifa Hanum Lia Agustin Liana Sari, Nuri Mabruri, Efendi Maghfirotin Marta Banin Maghfirotin Marta Banin Mansur Mansur Mansur, Ali Marwati Marwati Masithoh, Fitria Nur Masitoh, Gustina Maulida Rachmawati Maulida Rachmawati Melati Kusuma Wardani Mohamad Arifin Muhammad Anas Ma'arif Muinah Fadhilah, Muinah Mujidin, Mujidin Munawar, M. Soleh Al Mursilah Mustofa, M Iqbal Myrna Ariati, Myrna Natalie, Regina Safira Natasha, Nadia Chrisayu Nawangsari, Elliza Natania Ningsih, Dewi Andariya Ningsih, Nur Tia Ningtias, Dyah Ayu Nisa, Haerun Nisa, Yahdiatun Nita Dwi Astikasari Noor, M. Fauzan Nur Amaliah Nur Masitoh, Fitria Nur Rokhman Nurgiyantoro, Edi Nurrohmah, Meizza Nuryati, Ida Nuzula, Wenny Firdausin Oktania, Wulan Panggulu Ahmad Ramadhani Utoro Pardi, Lasmono Permata, Aurel Priastyca Pinto, Juliana Gomes Prabowo , Sulistyo Prabowo, Sulistyo Priyono, Sigit Pujokaroni, Agustu Sholeh Putri, Annisa Ananda Putri, Ariesta Brinawaty Putri, Ella Wiyasa Qayyum, Abdul Rafii Nur Fauzan, Muhammad Rafii Rafika Rahmadani Rahmawati, Rahmawati Ratri Retno Utami Ravita D, Nena Reni Yuli Astutik Respati, Laras Laxita Winda Retnaningtyas, Erma Retno Palupi Yonni Siwi Ria Anggraeni Rifa'i, Muhamad Nanang Rina Juwita Riza Tsalatsatul Mufida Rohmani, Diah Tika Romijarso, Toni B. Romijarso, Toni Bambang Ronny Martien Ryzkyana, Cyntia Finda Safira Fadhila Safira, Liana Sagena, Uni W Sapay, Meni Mita Sejati, Putri Eka Selviana Ave Maria Funan Shanty Natalia Sholichah, Nazilatul Maulinda Sholikah, Diah Imroatus Sinaga, Umi Teresia Siti Hardianti, Siti Solly Aryza Sri Raharjo Suharni Milenia Wati Suheni Suheni Sukmiyati Agustin Sumadi, Lalu Aditya Supitri, Eka Sutati, Sutati Syamsul Hadi Tahni'ah, Anti Tri Ratna Dewi Tuszahroh, Nasifah Tuszahroh, Nasifah Utama, Dedi P. Utami, Siska Neeri Utami, Siska Neeri Vivie Sulastri Widhiatuti, Dhanik Rita Widuri, Erlina Estiyanti WIJAYANTI KUSUMA WARDHANI Winarti, Lilik Yadi, Yadi Yana Ulfah Yani Yani Yudha Agus Prayitno Yuliadini Puspita Yulian Andriani Yulian Andriyani Yulian Andriyani, Yulian Yuliani Yuliani Yuliani, Yuliani Zainal Arifin