eprintid: 2698
rev_number: 8
eprint_status: archive
userid: 15
dir: disk0/00/00/26/98
datestamp: 2021-01-07 07:15:46
lastmod: 2022-09-13 07:28:31
status_changed: 2021-01-07 07:15:46
type: conference_item
metadata_visibility: show
creators_name: Kartikasari, Ratna
creators_name: ., Sutrisna
title: PENGARUH KADAR Si TERHADAP STRUKTUR MIKRO
DAN SIFAT MEKANIK KANDIDAT BAJA RINGAN PADUAN Fe-7,5Al-5Mn
ispublished: pub
subjects: TJ
keywords: paduan Fe-Al-Mn, baja ringan, struktur mikro dan sifat mekanik
abstract: Paduan Fe-Al-Mn merupakan kandidat baja tahan karat austenitik pengganti baja tahan karat
konvensional yang saat ini terus dikembangkan. Al sebagai pengganti Cr selain berfungsi sebagai penstabil ferit
memberikan efek penurunan densitas paduan yang cukup signifikan, sehingga paduan ini juga merupakan
kandidat baja ringan. Penelitian ini mempelajari pengaruh kadar Si terhadap sifat struktur mikro dan mekanik
paduanFe-7,5Al-5Mn.
Proses peleburan dilakukan menggunakan dapur induksi frekwensi tinggi kapasitas 50 kg dengan
pelindung gas argon. Bahan baku peleburan adalah mild steel scrap, aluminium murni, Fe-Mn medium C, dan
Fe-C. Variasi kadar Si yang ditambahkan adalah 0,5%, 1,0% dan 1,5%. Pengujian yang dilakukan adalah uji
struktur mikro dan uji mekanik.
Hasil Penelitian menunjukkan bahwa paduan Fe-7,5Al-5Mn berstruktur dupleks α/ɤ, dimana semakin
tinggi kadar Si struktur ferit (α) semakin luas. Kekuatan tarik paduan berkisar 61,78-69,56 MPa, regangan 20,8-
30,65%, kekerasan 220-230 VHN, harga impak 20-30 J dan densitas berkisar 6,9-7,2 kg/cm
3 Semakin tinggi
kadar Si kekuatan tarik dan kekerasan semakin tinggi sedangkan harga impak dan densitas semakin menurun.
Kata kunci: paduan Fe-Al-Mn, baja ringan, struktur mikro dan sifat mekanik
date: 2012-12-15
date_type: published
official_url: https://itny.ac.id
contact_email: library@sttnas.ac.id
full_text_status: public
pres_type: paper
pagerange: 275-279
event_title: Seminar Nasional Rekayasa Teknologi dan Informasi (ReTII) ke 7
event_location: STTNAS Yogyakarta
event_dates: 15 Desember 2012
event_type: conference
refereed: TRUE
referencetext: Avner, H.S., 1987, Introduction to Physical
Metallurgy, McGraw-Hill Inc., Singapure.
Baligidad, R.G., Prakash, U., Ramakrishna Rao, V.,
Rao, P.K., and Ballal N.B., 1996, Effect of
Carbon Content on Mechanical Properties
of Electroslag Remelted Fe3Al Based
Intermetallic alloys, Vol. 36, No. 12, 1453-
1458.
Baligidad, R.G., Prakash, U., and Radha Krishna,
1998, Effect of Carbon Addition on
Structure and Mechanical Properties of
Electroslag Remelted Fe-20wt.%Al alloy,
Vol. 249, No. 1-2, 97-102.
Chao, Y.C., and Liu, C.H., 2002, Effect of Mn
Content on the Micristructure and
Mechanical Properties of Fe-10Al-xMn-1.0C
Alloy, Materials Transactions, Vol. 3, No. 10,
pp. 2635-2642.
Davidson, R.M., DeBold, T. dan Johnson, M.J,
1988, Corrosion of Stainless Steel, dalam
ASM Handbook, Metals Park, Ohio
Environmentalchemistry.com,2008, Environmental,
Chemistry & Hazardous Materials News,
Careers & Resources, Periodic Table of
Elements.
Fontana, G.M., 1988, Corrosion Engineering, 3th
ed., McGraw Hill Inc., Singapore.
Frommeyer, 2000, Physical and Mechanical
Properties of Iron-Aluminium-(Mn-Si)
Lightweight Steels, The 1999 ATS
International Steelmaking Conference, Paris.
Sec.4.
Prakash, U. Buckley, R.A., Jones, H. and Sellars,
C.M., 1991, Structure and Properties of
Ordered Intermetallics Based on the Fe-Al
System, ISIJ Int., vol 31, no. 10, 1113-1126.
Shackelford, J.F., 1992, Introduction to Material
Science for Engineers, 3th ed., McMillan
Publishing Company, New York.
Honeycombe, R.W.K. dan Bhadeshia, H.K.D.,1995,
Steel Microstructure and Properties, 2
nd ed.,
Edward Arnold, London.
Huang, B.X., Wang, X.D., Rong,Y.H., Wang, L.,
and Jin, L., 2006, Mechanical Behavior and
Martensitic Transformation of an Fe-Al-SiAl-Nb Alloy, Materials Science and
Engineering A, Vol. 438-440, p. 306-311.
Kobayashi, S., Zaefferer, S., Schneider, A., Raabe,
D., and Frommeyer, G., 2005, Optimisation
of Precipitation for Controlling
Recrystallization of Wrought Fe3Al Based
Alloys, Intermetallics, 13, 1296-1303.
Leslie, T., 1983, The Physical Metallurgi of Steels,
John Willey and Sons Inc., New York.
Sikka, V.K., Viswanathan, S., and McKamey, C.G.,
1993, in ‘Structural Intermetallic’, (ed. R.
Darolia et al.), Warrendale, PA, TMS. pp.
483-491
Tjong, S.C., 1986, Stress Corrosion Cracking
behavior of the duplex Fe-10Al-29Mn-0,4C
alloy in 20% NaCl solution at 100
oC, Journal
of MaterialScience, Vol. 21, Hal.: 1166-1170
Wang, S., Zhang, H., dan Chen, S.J., 2000,
Experiment on Fe-Al-Mn Deoxidizing and
Alloying of Low-carbon Aluminium Killed
Steel, Journal Iron Steel Vanadium Titanium,
Vol. 21, No. 4., hal. 44-49.
citation:   Kartikasari, Ratna and ., Sutrisna  (2012) PENGARUH KADAR Si TERHADAP STRUKTUR MIKRO DAN SIFAT MEKANIK KANDIDAT BAJA RINGAN PADUAN Fe-7,5Al-5Mn.  In: Seminar Nasional Rekayasa Teknologi dan Informasi (ReTII) ke 7, 15 Desember 2012, STTNAS Yogyakarta.     
document_url: https://repository.itny.ac.id/id/eprint/2698/1/PENGARUH%20KADAR%20Si%20TERHADAP%20STRUKTUR%20MIKRO%20DAN%20SIFAT%20MEKANIK%20KANDIDAT%20BAJA%20RINGAN%20PADUAN%20Fe-7%2C5Al-5Mn.pdf