Effect of Niobium Addition on The Morphological Behaviour of Au tempered Ductile Iron

  • Authors

    • S. K Alias
    • M. N. Halmy
    • M. A. Mat Shah
    • B. Abdullah
    • M. H. Ismail
    • M. F Idham
    https://doi.org/10.14419/ijet.v7i4.36.29363
  • Austempered ductile iron, niobium, morphological behaviour.
  • This paper investigate the effect of niobium addition at 0.5 wt% to the morphological behavior of austempered ductile iron. Austempered ductile iron (ADI) and niobium alloyed austempered ductile iron was prepared by first austenitizing the samples at 900°C before austempering process was conducted in salt bath at 1 hour holding time. The samples were then cooled to room temperature. The microstructural observation and analysis in term of nodule count, nodularity percentage and graphite percentages were conducted using Olympus B X 41M microscope with IMAPs 4.0 edition, Scanning electron microscopy (SEM) analyzer using SMARTSEM software and energy-dispersive X-Ray (EDX) spectroscopy. It was found that addition of niobium resulting in formation of niobium carbide (NbC) and much finer retained austenite and acicular ferrite structure.However,the nodularity, nodule count and graphite area were reduced due to the presence of niobium carbide.

     



  • References

    1. The authors would like to express their gratitude to the Ministry of Science and Technology, Malaysia (MOSTI) and Ministry of Higher Education Malaysia (MOHE), and Universiti Teknologi Mara for the financial support given to this work through research grant of 600-IRMI/DANA 5/3 REI(12/2017).

      References

      [1] N. Bhople, S. Pahl, M. Harne, and S. Dhande “Austempering parameters and machinability of austempering ductile iron: A comprehensive review on effective parameters†International Journal of Innovative Research in Science, Engineering and Technology 5(2) (2016) 1197-1211.

      [2] S. Balos, I. Radisavljevic, D.Rajnovic, M. Draicanin, S. Tabakovic, O. Eric-Cekic and L. Sidjanin “Geometry, mechanical and ballistic properties of ADI material perforated plates†Materials and Design, Elevier Series. 83 (2015) 66-74.

      [3] S. Méndez, U. de la Torre, P. Larrañaga (2015) “Processing Thickness Window for As-cast Ausferritic Castings†AFS Proceedings 2015 © American Foundry Society, Schaumburg, IL USA. Paper 15-010, Page 1 of 7.

      [4] A. Alhussein , M. Risbet, A. Bastien, J.P. Chobaut, D. Balloy and J. Favergeon “Influence of silicon and addition elements on the mechanical behavior of ferritic ductile cast iron†Materials Science & Engineering A 605 (2014) 222–228.

      [5] A.G.F. Alabi, J.O. Aweda, and F.I. Aluko “Influence of Ferrosilicon Manganese on the Sulphur Content and Microstructure in the Production of Austempered Ductile Iron (ADI)†Journal Of Production Engineering (2017) Vol.20 (2).

      [6] M.M. Anil Kumar, Dr. R Suresh and B Vinay “Development of Effect Austempered Ductile Iron and Property Evaluation with Addition of Aluminium†International Journal of Advances in Scientific Research and Engineering 3(2017) 8.

      [7] Z. Xiaohui, X. Jiandong, F. Hanguang, G. Yiming “Effect of titanium on the as-cast microstructure of hypereutectic high chromium cast iron†Materials Characterization 59(9)(2008) 1221-1226.

      [8] S. Savićević, H. AvduÅ¡inović, A. Gigović-Gekić, Z. Jurković, M. VukÄević, M. Janjić “Influence of The Austempering Temperature on The Tensile Strength of The Austempered Ductile Iron (ADI) Samples†Metalurgija 56 (2017) 1-2, 149-152.

      [9] F. Zanardi, F. Bonollo and G. Angella “A Contribution to New Material Standards for Ductile Irons and Austempered Ductile Irons†International Journal of Metal Casting 11(2017)1.

      [10] M. Janjić, H. Avdušinović, Z. Jurković, F. Bikić, S. Savićević “Influence of Austempering Heat Treatment on Mechanical and Corrosion Properties of Ductile Iron Samples†Metalurgija 55 (2016) 3, 325-328.

      [11] Z. Zhiguo, Y. Chengkai, Z. Peng and L. Wei “Microstructure and Wear Resistance of High Chromium Cast Iron Containing Niobium†Research & Development 11(2014)3.

      [12] M.R. Muhaffel and G. Yıldırım (2016) “Effect of Niobium Addition in Grey Cast Iron on Mechanical Properties. UCTEA Chamber of Metallurgical & Materials Engineers, Proceeding book.

      [13] B.Abdullah, S.K.Alias, A.Jaffar, A.A.Rashid, M.Haskil1 and A. Ramli “Tensile Strength Properties of Niobium Alloyed Austempered Ductile Iron on different austempering time†Advanced Materials Research (2012) 457-458.

      [14] P. Sellamuthu, D. G. Harris Samuel, D. Dinakaran , V. P. Premkumar Zushu Li and S. Seetharaman. “Austempered Ductile Iron (ADI): Influence of Austempering Temperature on Microstructure, Mechanical andWear Properties and Energy Consumption†Metals 8(2018)53.

      [15] A. Bedolla-Jacuinde (October 19th 2016). Niobium in Cast Irons, Progress in Metallic Alloys Vadim Glebovsky, IntechOpen, DOI: 10.5772/64498. Available from: https://www.intechopen.com/books/progress-in-metallic-alloys/niobium-in-cast-irons

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    K Alias, S., N. Halmy, M., A. Mat Shah, M., Abdullah, B., H. Ismail, M., & F Idham, M. (2018). Effect of Niobium Addition on The Morphological Behaviour of Au tempered Ductile Iron. International Journal of Engineering & Technology, 7(4.36), 1520-1523. https://doi.org/10.14419/ijet.v7i4.36.29363