Fatique behavior of steel carbonizing on high humidity environment


  • Muslih Nasution
  • Y Yusmartato
  • Luthfi Parinduri
  • Akhmad Bakhori Nasution
  • Abdurrozzaq Hasibuan




Fatique Strength, Humidity, Carbon Thickness, Carbonization Temperature.


Carbonizing is an attempt to improve the mechanical properties of steel carbon is added from the outside by placing the steel in a box, then the carbon is sown by heating above the critical temperature. Because of the heating process, the bonds of the steel atoms will stretch to each other, in the presence of the pressure of barium carbonate, the carbon diffuses into the steel through the distance between the atoms of the steel atoms, and then heated through the environment air, so that the structure of the microstructure consists of a ferrite layer and pearlite with a thicker carbon content on the outer shell. The diffusing carbon increases as the warming temperature is carried out, using a rotating bending fatigue type machine at 887.5 rpm, the steel is tested fatally until it is broken. The fatigue conditions were performed with the S-N curve. The exper-iments were carried out on krupp 1191 heated steels at 8000C, 9000C and 10000C, respectively, and then performed a fa-tigue test on RH70%, RH80% and RH90% environments. After the observation that the thicker the carbon layer formed the higher the fatigue strength. However, in a high humidity environment the fatigue strength decreases as the moisture of the test environment increases.



[1] C. Rahmawati, Z. Zainuddin, S. Is, and R. Rahim, “Comparison Between PCI and Box Girder in BridgesPrestressed Concrete Design,†J. Phys. Conf. Ser., vol. 1007, no. 1, p. 012065, Apr. 2018.

[2] R. Rahim, S. Napid, A. Hasibuan, S. R. Sibuea, and Y. Yusmartato, “Effect of the Machined Surfaces of AISI 4337 Steel to Cutting Conditions on Dry Machining Lathe,†J. Phys. Conf. Ser., vol. 1007, p. 012064, Apr. 2018.

[3] I. Mochida, Y. Q. Fei, K. Sakanishi, Y. Korai, H. Usuba, and K. Miura, “Carbonization of coal tar pitch denitrogenated by metal sulfates,†Carbon N. Y., vol. 30, no. 2, pp. 241–246, Jan. 1992.

[4] U. Khair, H. Fahmi, S. Al Hakim, and R. Rahim, “Forecasting Error Calculation with Mean Absolute Deviation and Mean Absolute Percentage Error,†J. Phys. Conf. Ser., vol. 930, no. 1, p. 012002, Dec. 2017.

[5] P. harliana and R. Rahim, “Comparative Analysis of Membership Function on Mamdani Fuzzy Inference System for Decision Making,†J. Phys. Conf. Ser., vol. 930, no. 1, p. 012029, Dec. 2017.

[6] T. Listyorini and R. Rahim, “A prototype fire detection implemented using the Internet of Things and fuzzy logic,†World Trans. Eng. Technol. Educ., vol. 16, no. 1, pp. 42–46, 2018.

[7] S. Nomura and K. M. Thomas, “Some aspects of the generation of coking pressure during coal carbonization,†Fuel, vol. 75, no. 7, pp. 801–808, May 1996.

[8] L. HAO, P. FENG, W. SONG, W. LIN, S. YOON, and I. MOCHIDA, “Modification performance of Hypercoal as an additive on co-carbonization of coal,†J. Fuel Chem. Technol., vol. 40, no. 9, pp. 1025–1030, Sep. 2012.

[9] D. Odhiambo and H. Soyama, “Cavitation shotless peening for improvement of fatigue strength of carbonized steel,†Int. J. Fatigue, vol. 25, no. 9–11, pp. 1217–1222, Sep. 2003.

[10] M. Ofsthun, “When fatigue quality enhancers do not enhance fatigue quality,†Int. J. Fatigue, vol. 25, no. 9–11, pp. 1223–1228, Sep. 2003.

[11] S. Baragetti, G. M. La Vecchia, and A. Terranova, “Fatigue behavior and FEM modeling of thin-coated components,†Int. J. Fatigue, vol. 25, no. 9–11, pp. 1229–1238, Sep. 2003.

[12] A. M. Hashem and I. H. Aly, “High-cycle fatigue life of coated low-carbon steel,†Int. J. Fatigue, vol. 16, no. 5, pp. 321–326, Jul. 1994.

[13] J. A. M. Ferreira, J. D. M. Costa, and V. Lapa, “Fatigue behaviour of 42Cr Mo4 steel with PVD coatings,†Int. J. Fatigue, vol. 19, no. 4, pp. 293–299, Apr. 1997.

[14] M. SONOBE, K. SHIOZAWA, and K. MOTOBAYASHI, “Corrosion Resistance and Corrosion Fatigue Strength of Carbon Steel Coated with Chromium Nitride by Multistage PVD Method.†JSME Int. J. Ser. A, vol. 40, no. 4, pp. 436–444, Oct. 1997.

[15] American Society for Testing and Materials. Annual Book of ASTM Standards: Metals Test Methods and Analytical Procedures Section 3. ASTM, 2003.

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