Experimental Investigation and Statistical Modeling of the Effective Parameters in Charpy Impact Test on AZ31 Magnesium Alloy with V-shape Groove Using Taguchi Method

Document Type : Original Article

Authors

1 Department of Materials and metallurgy, Birjand University of Technology, Birjand, Iran

2 Department of Mechanics, Semnan University, Semnan, Iran

3 Department of Mechanics, Urmia University, Urmia, Iran

Abstract

Today, the charpy impact test is required as a general quality control test in various industries. Several industrial standards have been formulated to perform the test accurately. It is important to determine the dynamic fracture energy in the charpy impact test and its relation to the fracture toughness through semi-empirical equations. In the present study, the charpy impact test on AZ31 magnesium alloy with standard ASTM E23 sample size is measured by the effect of groove depth, temperature and angle of groove on fracture energy. Taguchi and L18 arrays have been used to design the experiments and obtain the optimal state according to the number of factors studied. The effect of each input variable on the target parameter was analyzed by using ANOVA and the values of input parameters were extracted to maximize the amount of fracture energy by signal to noise method. The results showed that the groove depth has the greatest effect on the fracture energy and decreased with increasing groove depth. Also the best combination to maximize fracture energy was obtained in the non-grooved sample at -10 °C with a groove angle of 60 °.

Keywords


  Ghavidel, N., Allahkaram, S. R., Naderi, R., Barzegar, M., and Bakhshandeh, H., “Corrosion and wear behavior of an electroless Ni-P / nano-SiC coating on AZ31 Mg alloy obtained through environmentally-friendly conversion coating”, Surface and Coatings Technology, Vol. 382, (2020), 125-156, https://doi.org/10.1016/j. surfcoat.2019.125156.
 Fata, A., Faraji, G., Mashhadi, M. M., and Tavakkoli, V., “Hot tensile deformation and fracture behavior of ultrafine-grained AZ31 magnesium alloy processed by severe plastic deformation”, Materials Science and Engineering: A, Vol. 674, (2016), 9-17, https://doi. org/ 10.1016/j.msea.2016.07.117.
Liu, F., Lin, X., Shi, J., Zhang, Y., Bian, P., Li, X., and Hu, Y., “Effect of microstructure on the Charpy impact properties of directed energy deposition 300M steel”, Additive Manufacturing, Vol. 29, (2019), 100795, https: //doi.org/10.1016/j.addma.2019.100795.
 Dziubinska, A., Gontarz, A., Horzelska, K., and Pieskoa, P., “The microstructure and mechanical properties of AZ31 magnesium alloy aircraft brackets produced by a new forging technology”, 2nd International Materials, Industrial, and Manufacturing Engineering Conference, (2015), 337-341, Doi: 10.1016/j.promfg .2015. 07.059.
 Trojanova, Z., Gartnerova, V., Jager, A., and Namesny, A., “Mechanical and fracture properties of an AZ91 Magnesium alloy reinforced by Si and SiC particles”, Composites Science and Technology, Vol. 69, No. 13, (2009), 2256-2264, https://doi.org/10.1016/j. compscitech.2009.06.016.
 Daud, M. A. M., Nasir, N. Z., Rivai, A., and Selamat, M. Z., “Dynamic Fracture Toughness of Magnesium Alloy under Impact Loading Conditions”, Procedia Engineering, Vol. 53, (2013), 639-644, https://doi. org/ 10.1016/j.proeng.2013.02.082.
 Rajakumar, S., Muralidharan, C., and Balasubramanian, V., “Influence of friction stir welding process and tool parameters on strength properties of AA7075-T6 aluminium alloy joints”, Materials & Design, Vol. 32, No. 2, (2011), 535-549. DOI:10.1016/j.matdes .2010. 08.025.
 Hashemi, S.H., “Apportion of Charpy energy in API 5L grade X70 pipeline steel”, International Journal of Pressure Vessels and Piping, Vol. 85, No. 12, (2008), 879-884, https://doi.org/10.1016/j.ijpvp.2008.04.011.
 Hashemi, H., and Hashemi, S.H., “Investigation of Macroscopic Fracture Surface Characteristics of API X65 Steel Using Three-point Bending Test”, Modares Mechanical Engineering, Vol. 19, No. 7, (2019), 219-228. http://journals.modares.ac.ir/article-15-21024-fa. html.
Cao,Y.,Zhen, Y., Song, M., Yi, H., Li, F., and Li, X., “Determination of Johnson–Cook parameters and evaluation of Charpy impact test performance for X80 pipeline steel”, International Journal of Mechanical Sciences, Vol. 179, (2020), 105627, https://doi.org/ 10.1016/j.ijmecsci.2020.105627
Tavares, S. S. M., Silva, M. B., Macedo, M. C. S. D., Strohaecker, T. R., and Costa, V. M., “Characterization of fracture behavior of a Ti alloyed supermartensitic 12%Cr stainless steel using Charpy instrumented impact tests”,Engineering Failure Analysis, Vol. 82, (2017), 695-702, doi.org/10.1016/j.engfailanal .2017 .06.002.
Tanks, J., Sharp, S., and Harris, D., “Charpy impact testing to assess the quality and durability of unidirectional CFRP rods”, Polymer Testing, Vol. 51, (2016), 63-68, doi.org/10.1016/ j.polymer testing.2016. 02.009.
Khiratkar, V. N., Mishra, K., Srinivasulu, P., and Singh, A., “Effect of inter-lamellar spacing and test temperature on the Charpy impact energy of extremely fine pearlite”, Materials Science and Engineering: A, Vol. 754, (2019), 622-627, https://doi.org/10.1016 /j.msea.2019. 03.121.
Demirci, M. T., Tarakcioglu, N., Avci, A., and Erkendirci, O, F., “Fracture toughness of filament wound BFR and GFR arc shaped specimens with Charpy impact test method”, Composites Part B: Engineering, Vol. 66, (2014), 7-14, doi.org /10.1016/j.compositesb .2014.04. 015.
Ghash, A., Sahoo, S., Ghosh, M., Ghosh, R. N., and Chakrabarti, D., “Effect of microstructural parameters, microtexture and matrix strain on the Charpy impact properties of low carbon HSLA steel containing MnS inclusions”, Materials Science and Engineering: A, Vol. 613, (2014), 37-47, doi.org/10.1016/j.msea .2014.06.091.
Druce, S.G., Gage, G., and Popkiss, E., “Effects of notch geometry on the impact fracture behavior of a cast duplex stainless steel”, International Journal of Pressure Vessels and Piping, Vol. 33, No. 1, (1988), 59-81, doi.org/10.1016/0308-0161(88)90117-2.
Sidener, S. E., Kumar, A. S., Oglesby, D. B., Schubert, L. E., Hamilton, M.L., and Rosinski, S. T., “Dynamic finite element modeling of the effects of size on the upper shelf energy of pressure vessel steels”, Journal of Nuclear Materials, Vol. 239, No. 1, (1996), 210-218, doi.org/10.1016/S0022-3115(96)00483-7.
Barati, E., Aghazadeh Mohandesi, J., and Alizadeh, Y., “The effect of notch depth on J-integral and critical fracture load in plates made of functionally graded aluminum–silicone carbide composite with U-notches under bending”, Materials & Design, Vol. 31, No. 10, (2010), 4686-4692, doi.org/10.1016 /j.matdes. 2010.05. 025.
Salavati Pour, H. S., Alizadeh, Y., and Berto, F., “Effect of notch depth and radius on the critical fracture load of bainitic functionally graded steels under mixed mode I + II loading”, Physical Mesomechanics, Vol. 17, No. 3, (2014), 178-189, Doi: 10.1134/S1029959914030023.
Hosseinzadeh, A., and Hashemi, S. H., “Experimental Investigation of the effect of groove depth on sharp fracture energy in XIP X65 steel”, 26th Annual Conference of the Iranian Society of Mechanical Engineers, (2018), Tehran, Iran.
Tewari, S. P., and Rizvi, S., “Effect of Different Welding Parameters on the Mechanical and Microstructural Properties of Stainless Steel 304H Welded Joints”, International Journal of Engineering, Transactions A: Basics, Vol. 30, No. 10, (2017), 1592-1598, doi: 10.5829/ije.2017.30.10a.21.
Hoten, H., Mainil, A. K., and Mulyadi, I.,  “Parameters Optimization in Manufacturing Nanopowder Bioceramics of Eggshell with Pulverisette 6 Machine using Taguchi and ANOVA Method (TECHNICAL NOTE) ”, International Journal of Engineering, Transactions A: Basics, Vol. 31, No. 1, (2018), 45-49, doi: 10.5829/ije. 2018. 31.01a. 07.
Afrasiabi, H. A., Khayati, G. R., and Ehteshamzadeh, M., “Studying of Heat Treatment Influence on Corrosion Behavior of AA6061-T6 by Taguchi Method”, International Journal of Engineering, Transactions C: Aspects, Vol. 27, No. 9, (2014), 1423-1430, doi:10.5829 /idosi.ije. 2014.27. 09c .12.