Pengaruh Waktu Tahan Dan Penambahan Kadar Garam Dapur (NaCl) Dalam Media Pendingin Air Pada Proses Hardening Terhadap Sifat Mekanik Dan Struktur Mikro Baja Karbon Rendah

  • Richard A M Napitupulu Prodi Teknik Mesin Universitas HKBP Nommensen
  • Suriady Sihombing
  • Charles Manurung
  • Jonner Togatorop
Keywords: effect, salt, hardening

Abstract

This study aims to determine the effect of salt (NaCl) in water cooling media with different levels of 10%, 16% and 25% against the hardness level of low carbon steel tested with Vickers after hardening in the hardening process and to determine the proportion of media which coolant produces the highest hardness from the use of water cooling media which is added to different levels of NaCl.

The independent variable in this study is the amount of salt (NaCl) dissolved in water cooling media with different percentages, namely 10%, 16% and 25%. While the dependent variable is the value of the hardness of the material tested with Vickers. Hardness in the hardening process with water cooling media which added different salt (NaCl), 10%, 16% and 25% is 185.02 VHN, 229 VHN and 284 VHN. From the results of the study it was found that there was an effect of the salt content (NaCl) in the water cooling media on the level of hardness in the hardening process of low carbon steel. Higher level of salt will increase value of hardness. The highest hardness was achieved in cooling media with a concentration of 25% NaCl that is equal to 284 VHN followed by cooling media with a concentration of 16% NaCl of 229 VHN and the lowest was a cooling medium with a concentration of 10% NaCl of 185.02 VHN.

References

[1]. Andika Wisnuajati, Analisis perlakuan carburizing terhadap sifat fisik dan mekanik pada bahan sprocket imitasi sepeda motor, Jurnal SIMETRIS, Vol 8 No 1 April 2017
[2]. Sumiyanto, Abdunnaser, Pengaruh media pendingin terhadap sifat mekanik dan struktur mikro plat baja karbon ASTM A-36, Bina Teknika, Volume 11 No. 2, Desember 2015.
[3]. Amanto, H. dan Daryanto, 1999. Ilmu Bahan. Jakarta, Bumi Aksara
[4]. Beumer, B.J.M.,(1994), Ilmu Bahan Logam, Jilid Satu, Bharatara Karya Aksara, Jakarta.
[5]. Nasmi Herlina Sari, Perlakuan panas pada baja karbon: efek media pendinginan terhadap sifat mekanik dan struktur mikro, Jurnal Teknik Mesin (JTM): Vol. 06, No. 4, Oktober2017
[6]. Muhammad Iqbal, Pengaruh temperature terhadap sifat mekanis pada proses pengkarbonan padat baja karbon rendah, Jurnal SMARTek, Vol. 6, No. 2, Mei 2008:
[7]. Mohammad Ismanhadi S dan Yuli Setyorini, Pengaruh media pendingin pada proses hardening terhadap strukturmikro baja mangan hadfield AISI 3401 PT Semen Gresik, Jurnal Teknik POMITS Vol. 2, No. 2, (2013)
[8]. Yuliana Aziza1, Yayi Febdia Pradani, Pengaruh kadar garam dapur (NaCl) dalam media pendingin terhadap tingkat kekerasan pada proses pengerasan baja ST-60, FTIKA Unira Malang | Vol. 1 | No. 1, Oktober 2017.
[9]. Hamzah Nur, Pengaruh penggunaan media pendingin air garam, air tawar, dan air asam pada perlakuan pnas terhadap kekerasan baja ST 60, TEKNOLOGI VOL. 16 NO. 1 APRIL 2017
[10]. M. Taufan Rizal, Pengaruh kadar garam dapur (NaCl) dalam media pendingin terhadap tingkat kekerasan pada proses pengerasan baja V-155, Skripsi, Jurusan Teknik Mesin FT Universitas Negeri Semarang, 2005
Published
2019-08-09
How to Cite
Napitupulu, R., Sihombing, S., Manurung, C., & Togatorop, J. (2019). Pengaruh Waktu Tahan Dan Penambahan Kadar Garam Dapur (NaCl) Dalam Media Pendingin Air Pada Proses Hardening Terhadap Sifat Mekanik Dan Struktur Mikro Baja Karbon Rendah. SPROCKET JOURNAL OF MECHANICAL ENGINEERING, 1(1), 24-33. https://doi.org/https://doi.org/10.36655/sproket.v1i1.36

Most read articles by the same author(s)