IJSTR

International Journal of Scientific & Technology Research

Home About Us Scope Editorial Board Blog/Latest News Contact Us
0.2
2019CiteScore
 
10th percentile
Powered by  Scopus
Scopus coverage:
Nov 2018 to May 2020

CALL FOR PAPERS
AUTHORS
DOWNLOADS
CONTACT

IJSTR >> Volume 9 - Issue 1, January 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Improvement of Mechanical Propeties and Fatic Resistance on ASSAB Steel 705 M Through The Austempering Process

[Full Text]

 

AUTHOR(S)

Helmy Alian, Qomarul Hadi, Sugiarto

 

KEYWORDS

Austempering, Mechanical Properties, Fatigue

 

ABSTRACT

Austempering is the process of isothermal transformation of steel at temperatures between the pearlite phase and the martensite phase. The austempering time must ensure that the formation of bainite ferrite is sufficient for the remaining austenite with carbon which allows most of it to be maintained to room temperature. Austempering is intended to form strong and resilient material. To determine the effect of temperature variations on the austempering process, the tests conducted are tensile testing, fatigue testing and microstructure observation. Tensile test values after undergoing austempering at temperatures of 320 ° C, 350 ° C and 380 ° C are 119.47 kgf/mm2, 127.86 kgf/mm2 and 134.34 kgf/mm2. While the strain value is 1.39%, 1.74 %, 2.43 %. The cycle produced by fatigue testing in the process at temperatures of 320 ° C, 350 ° C and 380 ° C, namely 130600 cycles, 166200 cycles, 185700 cycles.

 

REFERENCES

[1] Surdia, T. & Saito, S. 2000. Knowledge of Technical Materials. Jakarta: Pradnya Paramita.
[2] Hayrynen, K.L., Brandenberg.K.R. and Keeough., 2002, Application of Austempered Cast Iron, American Foundry Society.
[3] ASM HANDBOOK, 1991. Volume 4: Heat Treating. USA: ASM International.
[4] Kenneth G. Budinski., 1996 Enegineering Materials, Properties and Selection, fifth edition. USA: Prentice Hall International Inc.
[5] D. Gandy., 2007. Carbon Steel Handbook. California: Electric Power Research Institute Inc.
[6] Chakrabarty, I, Heat Treatment of Cast Irons, Comprehensive Materials Finishing, 2, 2017, pp.
[7] Khani Sanij, S.S. Ghasemi Banadkouki, A.R. Mashreghi, M. Moshrefifar, The effect of single and double quenching and tempering heat treatments on the microstructure and mechanical properties of AISI 4140 steel, Materials & Design, 42, 2012, pp. 339-346.
[8] W.S Chang, Microstructure and mechanical properties of 780 MPa high strength steels produced by direct-quenching and tempering process, Journal of Materials Science, 37(10), 2002, pp.1973-1979.
[9] Y. Zou, Y.B. Xu, Z.P. Hu, X.L. Gu, F. Peng, X.D. Tan, S.Q. Chen, D.T. Han, R.D.K. Misra, G.D. Wang, Austenite stability and its effect on the toughness of a high strength ultra-low carbon medium manganese steel plate, Materials Science and Engineering A, 675, 2016, pp. 153-163.
A. D. da Silva, T. A. Pedrosa, J. L. Gonzalez-Mendez, X. Jiang, P.R. Cetlin, T. Altan, Distortion in quenching an AISI 4140 C-ring – Predictions and experiments, Materials & Design, 42, 2012,
[10] H. Kovacı, A. F. Yetim, Ö. Baran, A. Çelik, Fatigue crack growth behavior of DLC coated AISI 4140 steel under constant and variable amplitude loading conditions, Surface and Coatings Technology, 304, 2016, pp. 316-324.
[11] H. Kovacı, A. F. Yetim, Ö. Baran, A. Çelik, Fatigue crack growth analysis of plasma nitrided AISI 4140 low-alloy steel: Part 1-constant amplitude loading, Materials Science and Engineering A, 672, 2016, pp. 257-264.
[12] M. Gerstenmeyer, F. Zanger, V. Schulze, Influence of Complementary Machining on fatigue strength of AISI 4140, CIRP Annals, 67(1), 2018, pp. 583-586.
[13] R. Menig, V. Schulze, O. Vöhringer, Optimized warm peening of the quenched and tempered steel AISI 4140, Materials Science and Engineering A, 335(1–2), 2002, pp. 198-206.
A. Çelik, A. F. Yetim, A. Alsaran, M. Karakan, Effect of magnetic treatment on fatigue life of AISI 4140 steel, Materials & Design, 26, 2005, pp. 700-704.