Fatigue Crack Growth Studies on ZE41A Cast Magnesium Alloy

M. Sivapragash*, P.R. Lakshminarayanan**, K. Raghukandan***, R. Karthikeyan****, M. Hanumantha*****
* Professor & Vice Principal, Department of Mechanical Engineering, Vivekanandha institute of Engineering & Technology Tamil Nadu, India.
**, ***, **** Department of Manufacturing Engineering, Annamalai University, Chidambaram, Tamil Nadu, India.
***** Foundry & Forging Division, HAL, Bangalore, Karnataka, India.
Periodicity:November - January'2009
DOI : https://doi.org/10.26634/jfet.4.2.524

Abstract

In this research work, Fatigue Crack Growth (FCG) characteristics are studied using axial fatigue test on Compact Tension (CT) specimen for as cast, heat treated and welded material. The relation ship between fatigue crack growth rate and stress intensity factor range for crack growth are analyzed. How ever, the results of da/dN-?K curves for CT specimens and Paris constants are determined. The heat treated specimen shows lower growth rate compared to as cast and welded materials. The fracture surfaces of the tested specimen are observed under a scanning electron microscope to understand the type of fracture. The fracture mode is observed as quasi cleavage.

Keywords

Magnesium Alloy, Gas Tungsten Arc Welding, Fatigue Crack Growth.

How to Cite this Article?

M. Sivapragash, P.R. Lakshminarayanan, K. Raghukandan, R. Karthikeyan and M. Hanumantha (2009). Fatigue Crack Growth Studies on ZE41A Cast Magnesium Alloy. i-manager’s Journal on Future Engineering and Technology, 4(2), 58-63. https://doi.org/10.26634/jfet.4.2.524

References

[1]. Smith W.E. “Structure and Properties of Engineering Alloys” 1993, Mc Graw Hill, NewYork.
[2]. Mordike B.L, Ebert T. “Magnesium Properties-application-potential” Material Science and Engineering A, 302, 2001, 37-42.
[3]. Vijai Mohan V. And Gopalakrishna V. “Applications of Magnesium Alloys Castings” 1995, Krishnadas Nair C.G., Gopalakrishna V. and Dwarakadasa E.S. (Ed.), Source Book on Magnesium Alloys Technology, Bangalore, India, pp.1-3 [paper no.34].
[4]. Aghion E., Bronfin B., Eliezer D., Buch F.V., Schumann S., Friedrich H. “The art of developing new magnesium alloys for high temperature applications” Materials Science Forum, 419- 422, 2003, 40718.
[5]. Yoo M.S., Kim Y.C., Ahn S., Kim N.J. “Tensile and creep properties of squeeze cast Mg alloys with various second phase” Materials Science Forum, 419- 422, 2003, 419- 424.
[6]. Gokan Y., Suzuki A., Nozawa S., Anyanwu I.A., Kamado S., Kojima Y. “Development of heat resistant MgZnAlCaRE die casting alloys” Materials Science Forum, 419-422, 2003, 451- 456.
[7]. Vijay Mohan V., Mehta A.S., Amalraj L. and Gopalakrishna V. “Recent Trends in Magnesium Alloys and their Applications in Aerospace” 1995, Krishnadas NairC.G., Gopalakrishna V. and Dwarakadasa E.S., editors, Source Book on Magnesium Alloys Technology, India, Bangalore, paper no.33, pp.1-5.
[8]. Mehrotra P., Lillo T.M. and Agnew S.R. “Ductility enhancement of a heat treatable magnesium alloy” Scripta Materialia 55, 2006, 855-858.
[9]. Robert, C.S., 1960. Magnesium And Its Alloys, Wiley; New York.
[10]. “ASM Metals Hand Book” 1984. Desk Edition. Chapter 8 on Magnesium ASM Park, Ohio, pp.1.8-8.16.
[11]. Liu L. and Dong C. “Gas tungsten-arc filler welding of AZ31 magnesium alloy” Materials Letters, 60, 2006, 2194-2197.
[12]. Wolf B., Fleck C., Eifler D. “Characterization of the fatigue behaviour of the magnesium alloy AZ91D by means of mechanical hysteresis and temperature Measurements” International Journal of Fatigue, 26, 2004, 1357-1363.
[13]. Eisenmeier G., Holzwarth B., Hoppel H.W., Mughrabi H. “Cyclic deformation and fatigue behaviour of the magnesium alloy AZ91” Materials Science and Engineering A, 319-321, 2001, 578-582.
[14]. Eifler D., Wolf B. and Fleck C. “Characterization of the fatigue behaviour of the magnesium alloy AZ91D by means of mechanical hysteresis and temperature Measurements” International Journal of Fatigue, 26, 2004, 1357-1363.
[15]. Rajan T.V., Sharma C.P. and Sharma A. “Heat treatment principles and techniques” 1988, Prentice-Hall of India Private Limited, India.
[16]. Avedesian M. and Baker Hugh. “ASM specialty hand book Magnesium and Magnesium Alloys” 1999, ASM International, Materials Park (OH).
[17]. ASTM Standard E-647. “Test method for Measurement of Fatigue Crack Growth” 2000,American Society for Testing and Materials, Philadelphia.
[18]. Emley E.F. “Principles of Magnesium Technology” 1966, Pergamon Press, London.
[19]. Vijai Mohan V. and Gopalakrishna V. “Study of magnesium alloy systems” Krishnadas Nair C.G., Gopalakrishna V. and Dwarakadasa E.S. editors. Source Book on Magnesium Alloys Technology, Bangalore, India, 1995, paper no. 5, pp.1-3.
[20]. Chaudhuri S.K. and Krishnadas Nair C.G. “Influence of microshrinkage on mechanical properties of magnesium-zinc-zirconium-rare earth” Krishnadas Nair C.G., Gopalakrishna V. and DwarakadasaE.S. editors. Source Book on Magnesium Alloys Technology, Bangalore, India, 1995, paper no.25, pp.1-6.
[21]. Tokaji K., Kamaku ra M., Ishiizumi Y. and Hasegawa N. “Fatigue behaviour and fracture mechanism of a rolled AZ31 magnesium alloy” International Journal of Fatigue, 26, 2004, 1217-1224.
[22]. Wang X.S. and Fan J.H. “SEM online investigation of fatigue crack initiation and propagation in notched cast magnesium alloy specimen” Journal of Material Science, 11, 2004, 145-154.
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