Investigation on Evolution of Microstructures and Characterization During FSW of AZ80A Mg Alloy

• Autorzy: Sevvel P. , Jaiganesh V.

Identyfikatory

DOI

10.1515/amm-2017-0270

• Języki publikacji: EN

Abstrakty

EN

Experimental investigation was conducted to find out microstructural characteristic changes arising in the weldments AZ80A Mg alloys obtained using the friction stir welding. Tools with three different pin profile geometries were employed during this investigation at constant tool rotational speed and feed rate. Tensile tests are performed and the tensile fracture surfaces are examined using the Scanning Electron Microscope (SEM) and the obtained SEM images are used for microstructural investigations. From the experimental results, it was observed that the geometry of the tool pin plays a significant role in producing essential stirring action there by regulating the flow of the plasticized material and leading to the formation of small sized grains having equally distributed fine strengthening precipitates. These structured grains have a direct reflecting impact in increasing the hardness and mechanical properties of the fabricated joints at the nugget zone of the friction stir welded AZ80A Mg alloy joints.

Słowa kluczowe

EN

AZ80A Mg alloy; friction stir welding; grain structure; material flow; tool pin geometry

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 3
• Strony: 1779--1785
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Sevvel P.

• S. A. Engineering College, Chennai, India

autor

Jaiganesh V.

• S. A. Engineering College, Chennai, India

Bibliografia

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• [2] P. Sevvel, V. Jaiganesh, Experimental Investigation on the impact of the Tool Material & geometry in joining of Al 63400 Alloy using Friction Stir Welding Process, Applied Mechanics and Materials 592-594, 312-315 (2014).
• [3] V. Jain, R. S. Mishra, A. K. Gupta, Study of β-precipitates and their effect on the directional yield asymmetry of friction stir processed and aged AZ91C alloy, Material Science and Engineering A 560, 500-509 (2013).
• [4] A. Mohan, W. Yuan, R.S. Mishra, High strain rate superplasticity in friction stir processed ultrafine grained Mg–Al–Zn alloys, Material Science and Engineering A 562, 69-76 (2013).
• [5] S. Kumar, G.K.N. Pandey, Application of Taguchi Method for Optimization of Friction Stir Welding Process Parameters to Joining of Al Alloy, Int. J. of Adv. Mat. Manuf. & Charact. 3 (1), 253-258 (2013).
• [6] S. Ugender, A. Kumar, A. Somi Reddy, Microstructure and Mechanical Properties of AZ31B Magnesium Alloy by Friction Stir Welding, Procedia Materials Science 6, 1600-1609 (2014).
• [7] P. Sevvel, V. Jaiganesh, Characterization of mechanical properties and microstructural analysis of friction stir welded AZ31B Mg alloy thorough optimized process parameters, Procedia Engineering 97, 741-751 (2014).
• [8] D. G. Hattingh, C. Blignault, T. I. van Niekerk,M. N. James, Characterization of the influences of FSW tool geometry on welding forces and weld tensile strength using an instrumented tool, J. of Mat. Proc. Techn. 203 (1-3), 46-57 (2008).
• [9] P. Sevvel, V. Jaiganesh, Influence of tool profile during FSW of Mg alloy using optimized parameters, Int. J. of App. Eng. Research 10, 159-164 (2015).
• [10] P. Cavaliere, R. Nobile, F. Panella, A. Squillace, Microstructural Behaviour of 2024-7075 Aluminum Alloy Sheets Joined by Friction Stir Welding, Int. J. of Mach. Tools and Manuf. 46, 588-594 (2006).
• [11] G. M. Xie, Z. Y. Ma, L. Geng, Effect of microstructural evolution on mechanical properties of friction stir welded ZK60 alloy, Materials Science and Engineering A 486, 49-55 (2008).
• [12] R. Zeng, W. Dietzel, R. Zettler, J. Chen, K. U. Kainer, Microstructure evolution and tensile properties of friction-stir-welded AM50 magnesium alloy, Transactions of Nonferrous Metals Society of China 18, S76-S80 (2008).
• [13] P. Sevvel, V. Jaiganesh, Effect of Tool Shoulder Diameter to Plate Thickness Ratio on Mechanical Properties and Nugget Zone Characteristics During FSW of Dissimilar Mg Alloys, Transactions of the Indian Institute of Metals 68, S41-S46 (2015)
• [14] A. A. M. Silva, E. Arruti, G. Janeiro, E. Aldanondo, P. Alvarez, A. Echecerria, Material flow and mechanical behaviour of dissimilar AA2024-T3 and AA7075-T6 aluminium alloys friction stir welds, Materials & Design 32, 2021-2027 (2011).
• [15] V. Jaiganesh, P. Sevvel, Effect of Process Parameters in the Microstructural Characteristics and Mechanical Properties of AZ80A Mg Alloy during Friction Stir Welding, Transactions of the Indian Institute of Metals 68, S99-S104 (2015).
• [16] P. Sevvel, V. Jaiganesh, Friction stir welding: process parameters, defects & experimental modeling, International Journal of Applied Engineering Research 10, 518-522 (2015).

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).