Pengaruh Perubahan Mikrostruktur Terhadap Perubahan Kekerasan Radiant Tube Yang Telah Beroperasi Sejak 2003

Main Article Content

Laili Novita Sari

Abstract

Abstract 

B2TKS - Sub- Analysis of Damage and residual life has done Remaining Life Assessment to the radiant tube on oil and gas companies from 2003 - 2016. In determining the RLA, it was used graph of the Era Technology where the determination is based on the microstructural changes while there are no literature or research which shows the hardness changing of material ASTM A 213 T5 which occurs during the aging process. Therefore it need to make formulation about the changes of spheriodizationto the chages of hardness of radiant tube material ASTM A 213 T5. By knowing a reasonable decrease in hardness to spheriodization, it was expected to detect the abnormal condition or damage earlier. Based on the examination of metallographic and hardness testing ,is was known that the reduction of hardness occur in proportion to the increase ofsperiodization percentage. In spheriodzation changing of Classification A, B, C the decrease of hardness below 0.7 HB / HB0 while classification D until the next classification,reduction of hardness above 0,7HB / HB0. 

B2TKS – Sub Bidang Analisa Kerusakan dan umur sisa telah melakukan Remaining Life Assesment pada radiant tube pada perusahaan minyak dan gas bumi dari tahun 2003 – 2016. Dalam penentuan RLAdigunakan grafik dari Era Teknologi dimana penentuannya berdasarkan perubahan struktur mikro sedangkan untuk perubahan kekerasan material belum ada literatur atau penelitianyang menunjukkan tentang perubahan kekerasan pada material ASTM A 213 T5yang terjadi selama proses penuaan. Karena itu dilakukan perumusanperubahan kekerasan terhadap speriodisasi pada tube radiant material ASTM A 213 T5. Dengan mengetahui penurunan kekerasan yang wajar terhadap speriodisasi diharapkan akan mempermudah pendeteksian awal kondisi abnornal atau kerusakan. Berdasarkan pengamatan metalografi dan uji kekerasan diketahui bahwa penurunan kekerasan terjadi secara proporsional dengan peningkatan prosentase spriodisasi. Klasifikasi A, B, C penurunan kekerasan dibawah 0,7 HB/HB0 sedangkan klasifikasi D sampai berikutnya penurunan kekerasan diatas 0,7HB/HB0. 

Keywords: Hardness, radiant tube, in situ metallography, ASTM A 213 T5 

 

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How to Cite
Sari, L. N. (2019). Pengaruh Perubahan Mikrostruktur Terhadap Perubahan Kekerasan Radiant Tube Yang Telah Beroperasi Sejak 2003. Jurnal Material Komponen Dan Konstruksi, 15(2), 37–42. https://doi.org/10.29122/mkk.v15i2.3376
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References

Corcoran. Joseph. “ Creep monitoring using permanently installed potensial drop sensorsâ€, Thesis for the degree on doctor of philosophy, imperial college london, Agustus 2015.

Larsson, Jonas. “ Evaluation of current methods for creep analysis and impression creep testing of power plant steelâ€, Thesis for the degree on master, KTH royal institute of technology . 11 Oktober 2012.

Seng. Edwin Lim Chui,â€Evaluation of high temperature boiler tube using iterative analytical approachâ€, thesis for the bachelor degree, Universiti Teuku abdul rahman, Malaysia, April 2013.

Sahu, dwarka prasad.â€The remaining life assessment of high temperature services exposed component by metallographic thechniqueâ€, Brno, Czech Republic, 2014.

Parker, J. D, “Review of the application of metallurgical Replicas to detection of component damageâ€, component matters, EPRI, 2014 b.

VGB- kraftwerkstechik GmbH, VGB, TW 507,â€Guideline for assessment of microstructure development materials for component. Esson. 1992.

Kavita Sakhala et. al “ Study of microstructure degradation of boiler tubes due to creep for remaining life analysisâ€, International journal of engineering research and application, vol 4, Issue 7 (version 2), PP 93 -99. July 2014

Furtado, H.C.,L.H Almaeda, L Le May “ Damage and remaining life estimation in high temperature plant with various operation condition, OMMI, Vol. 5, Issue I, May 2008.

Bachetti, Daniel Henry “ Microstructural evaluation and creep rupture behaviour inconel alloy 740 H fusion weldâ€, Thesis for master degree, Lehigh University, January 2013.

Sekegawa. Masayuki,et. al “Fudamental study on Non Destructive Detection of creep damage for 18 Cr- 8Ni (SUS 304) steelâ€, Hitachi Research Laboratory ,1983.

Kirikara. Seishin et al,â€Fudamental study on Non destructive Detection of Creep damage for Austenitic stainless steel, Hitachi Research Laboratory, 1983.

API third Edition 2010.

Era Teknologi.