Peningkatan Sifat Fisik dan Mekanik Baja AISI 1030 dengan proses Pack Chromizing dengan variasi waktu penahanan

  • Yustiasih Purwaningrum Universitas Islam Indonesia
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DOI https://doi.org/10.31544/jtera.v11.i1.2026.19-24
Published 2026-06-26
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Abstract

The aim of this research is to determine the effect of variation in holding time of pack chromizing  on the physical and mechanical properties of AISI 1030 steel. The pack chromizing process uses a mixture of chromium (Cr2O3) and ammonium chloride (NH4Cl) in a ratio of 20:1. The pack chromizing process is carried out at a temperature of 1000℃ with holding time variations of 4, 5, and 6 hours. The tests conducted were chemical composition testing, microstructure observation, hardness testing, wear testing, and corrosion testing. Chemical composition tests show that the material used is classified as medium carbon steel. The chromium content increased after undergoing the chromizing process. The highest chromium content is found at a holding time of 6 hours, which is 0.49%, followed by a holding time of 5 hours with a value of 0.3139%, and the lowest chromium content is at a holding time of 4 hours with a value of 0.1136%. Microstructure observation shows that AISI 1030 steel and the results of pack chromizing have a microstructure consisting of pearlite and ferrite. The results of hardness testing using the Vickers microhardness method indicate that the longer the holding time in the pack chromizing process, the higher the hardness value becomes. The pack chromizing process reduces the wear value of the material. The highest reduction occurs at a holding time of 6 hours, amounting to 41.82%. The corrosion testing results indicate that AISI 1030 steel has a corrosion resistance value classified as good, with a value of 0.11 mmpy, whereas the results of pack chromizing for all variations of holding time fall into the very good category (0.02 – 0.1 mmpy).

Keywords

pack chromizing AISI 1030 steel holding time

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Vol. 11 No. 1: June 2026

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How to Cite

[1]
“Peningkatan Sifat Fisik dan Mekanik Baja AISI 1030 dengan proses Pack Chromizing dengan variasi waktu penahanan”, JTERA, vol. 11, no. 1, pp. 19–24, Jun. 2026, doi: 10.31544/jtera.v11.i1.2026.19-24.