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All Journal Rekayasa Mesin Jurnal Pengabdian Dinamika
Widyansyah, Fikri
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Humanities Mechanical Engineering Social Sciences

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PENGARUH TEMPERATUR AUSTEMPERING TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO BESI COR KELABU DENGAN NIKEL 10% UNTUK KOMPONEN BOILER PLTU Widyansyah, Fikri; Mabruri, Efendi; Alfirano, Alfirano
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1650

Abstract

Effect of austempering temperature on microstructure and mechanical properties gray cast iron with 10%wt nickel for boiler combustion application has been studied. Cast iron with the JIS FCD 45 standard with a minimum tensile strength of 414 MPa and a hardness of 187 HB is commonly used for this application. To improve its mechanical properties such as strength and hardness, austempering heat treatment usually applied. Austempering was carried out at 250°C, 300°C, 350°C, 400°C, and 450°C for 1 hour, with the same austenization temperature of 850°C for 1 hour. The highest increase in hardness was found at the austempering temperature of 250°C. The hardness was 321.80 HB or 19.30% of the initial hardness of 259.70 HB. In terms of strength, the highest increase occurred at the austempering temperature of 250°C which was 257 MPa or 31.52% of the initial strength of 176 MPa.
KREATIF MEMBANGUN DESA DENGAN MEMBERDAYAKAN TEKNOLOGI SEBAGAI MEDIA INFORMASI BAGI MASYARAKAT (STUDI KASUS PADA DESA PASIR JAYA, KEC. CIKUPA, KAB. TANGERANG, BANTEN) Yazid, Helmi; Ristanti, Dilla Ayu; Widyani, Hesti; Widyansyah, Fikri; Assyaukanie, Alfina Bunga; Anwar Fatwari, Muhamad Habib; Mardini, Alifia Nuraeni; Mahsusi, Amsori; Fauzan, Muhammad Hafizh
Jurnal Pengabdian Dinamika Vol 8, No 2 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/dinamika.v8i2.14227

Abstract

Mahasiswa sebagai agen pendorong perubahan di masyarakat harus mampu merangsang adanya perubahanmelalui program kerja yang dibuat dalam kegiatan Kuliah Kerja Mahasiswa (KKM). Banyak dikitnya bisadilakukan untuk membantu dan membangun desa dengan program kerja yang kreatif, sederhana, dan mudahdipahami oleh masyarakat desa. Khususnya kondisi saat ini yang sedang terjadi di Indonesia yaitu pandemiCovid-19 dan munculnya varian terbaru dari Covid-19 masih menjadi permasalahan yang utama. KegiatanKKM Tematik dilakukan Secara Online dan Offline, tetapi sebagian besar kegiatan yang kita lakukan adalahsecara online. Dengan serangkaian program mengedukasi dan sosialisasi masyarakat Desa Pasir Jaya mengenaipermasalahan kesehatan yaitu Penanganan, pecegahan, penularan, dan vaksinasi Covid-19. Pembuatan websiteDesa Pasir Jaya guna sebagai media penyaluran informasi terkait desa untuk masyarakatnya, serta pengadaanwebinarkolaborasidengankelompok19,40,112,yangberjudul“ImunAmanPanganMaju”untukmengedukasi masyarakat sekabupaten Tangerang tentang vaksinasi Covid-19 dan ketahanan pangan dimasapandemic virus Covid-19. Penyebaran informasi kegiatan program kerja menggunakan media video animasiataupun tutorial, infografis, pamflet, dan poster yang kemudian target informasi tersebut disebarkan melaluiwhatsapp group karang taruna Desa Pasir Jaya serta memanfaatkan media sosial seperti instagram dengan namaakun @kkmtematik17_untirtadan YouTube KKM17TEMATIK2021
PENGARUH TEMPERATUR AUSTEMPERING TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO BESI COR KELABU DENGAN NIKEL 10% UNTUK KOMPONEN BOILER PLTU Widyansyah, Fikri; Mabruri, Efendi; Alfirano, Alfirano
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1650

Abstract

Effect of austempering temperature on microstructure and mechanical properties gray cast iron with 10%wt nickel for boiler combustion application has been studied. Cast iron with the JIS FCD 45 standard with a minimum tensile strength of 414 MPa and a hardness of 187 HB is commonly used for this application. To improve its mechanical properties such as strength and hardness, austempering heat treatment usually applied. Austempering was carried out at 250°C, 300°C, 350°C, 400°C, and 450°C for 1 hour, with the same austenization temperature of 850°C for 1 hour. The highest increase in hardness was found at the austempering temperature of 250°C. The hardness was 321.80 HB or 19.30% of the initial hardness of 259.70 HB. In terms of strength, the highest increase occurred at the austempering temperature of 250°C which was 257 MPa or 31.52% of the initial strength of 176 MPa.
Co-Authors Alfirano Alfirano Anwar Fatwari, Muhamad Habib Assyaukanie, Alfina Bunga Fauzan, Muhammad Hafizh Helmi Yazid Mabruri, Efendi Mahsusi, Amsori Mardini, Alifia Nuraeni Ristanti, Dilla Ayu Widyani, Hesti