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Sree Sabari, S.
- Corrosion and Metallurgical Characteristics of AZ31B Magnesium Alloy Under NaCl Environment
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Authors
Affiliations
1 Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, IN
1 Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Chidambaram, Tamil Nadu, IN
Source
Manufacturing Technology Today, Vol 15, No 11 (2016), Pagination: 9-28Abstract
An investigation was carried out to quantify and characterize the corrosion behaviour of AZ31B magnesium alloy. The specimens were underwent immersion, salt spray, pitting and galvanic corrosion tests in order to quantify and characterize the corrosion rates of the AZ31B specimens with the influence of different pH values, chloride ion concentration and the corrosion time. An attempt was also made to develop an empirical relationship to predict the corrosion rate of AZ31B magnesium alloy. Three factors, five level, central composite rotatable design matrix was used to minimize the number of experimental conditions. Response surface methodology was used to develop the relationship. The developed relationship can be effectively used to predict the corrosion rate of AZ31B magnesium alloy at 95% confidence level. The results show that the corrosion rate was higher in salt spray corrosion tests than the immersion, pitting and galvanic corrosion tests.Keywords
AZ31B Magnesium Alloy, Response Surface Methodology, Corrosion Rate.
References
- Kemal, Mustafa; Kulekci: Magnesium and its alloys applications in automotive industry, ‘International Journal of Advanced Manufacturing Technology’, vol. 39, no. 9, 2008, 851-865.
- Modike, BL; Ebert, T: Magnesium: Properties applications - potential, ‘Materials Science and Engineering A’, vol. 302, no. 6, 2001, 37-45.
- Kojima, Y: Platform Science and Technology for Advanced Magnesium Alloys, ‘Materials Science Forum’, vol. 3, 2000, 350–351.
- Zhou, WQ; Shan, DY; Han, EH; Ke, W: Initial corrosion behavior of AZ91 magnesium alloy in simulating acid rain under wet-dry cyclic condition, ‘Transactions of Nonferrous Metals Society of China’, vol. 18, no. 2, 2008, 334-338.
- Zhao, M; Wu, S: A Chromium free conversion coating of magnesium alloy by a phosphate permanganate solution, ‘Surface and Coatings Technology’, vol. 200, no. 18, 2006, 5407-5412.
- Rong-chang Zeng; Jin Zhang; Wei-jiu Huang; Dietzel, W; Kainer, KU; Blawert, C; Wei Ke: Review of studies on corrosion of magnesium alloys, ‘Transactions of Nonferrous Metals Society of China’, vol. 16, no. 2, 2006, 763-771.
- Feng Liu; Ying-Wei Song; Da-Yong Shan; En-Hou Han: Corrosion behavior of AZ31 magnesium alloy in simulated acid rain solution ‘Transactions of Nonferrous Metals Society of China’, vol. 20, 2010, 638-642.
- Lei Wang; Tadashi Shinohara; Bo-Ping Zhang: Influence of chloride, sulfate and bicarbonate anions on the corrosion behavior of AZ31 magnesium alloy, ‘Journal of Alloys and Compounds’, vol. 496, no.1, 2010, 500-507.
- Yingwei Song; Dayong Shan; Rongshi Chen; En-Hou Han: Effect of second phases on the corrosion behaviour of wrought Mg–Zn–Y–Zr alloy, ‘Corrosion Science’, vol. 52, no. 5, 2010, 1830-1837.
- Ambat, R; Aung, N; Zhou, W: Evaluation of microstructural effects of corrosion behavior of AZ91 D Mg alloy, ‘Corrosion Science’, vol. 42, no. 8, 2008, 1433-1455.
- Pardo, A; Merino, MC; Coy, AE; Viejo, F; Arrabal, R; Feliu Jr, S: Influence of microstructure and composition on the corrosion behavior of Mg/Al alloys in chloride media, ‘Electrochimica Acta’, vol. 53, no. 27, 2008, 7890-7902.
- Wang, L; Shinohara, T; Zhang, BP: Corrosion behavior of Mg, AZ31, and AZ91 alloys in dilute NaCl solutions, ‘Journal of Solid State Electrochemistry’, vol. 14, no. 10, 2010, 1897-1907.
- Box, G E P; Draper, NR: Empirical Model Building and Response Surface, John Wiley and Sons, New York, 1987.
- ASM International, Metals Handbook, Corrosion, ninth ed., ASM International, 1987.
- Jones, DA: Principles and Prevention of Corrosion, Prentice-Hall, Englewood Cliffs, NJ, 1992.
- Fontana, MG; Greene, ND: Corrosion Engineering, McGraw-Hill, New York, 1984.
- Uhlig, HH: Corrosion and Corrosion Control, Wiley, New York, 1973.
- Zhao, MC; Liu, M; Song, G; Atrens, A: Influence of the beta-phase morphology on the corrosion of the Mg alloy AZ91, ‘Corrosion Science’, vol. 50, 2008, 1939–1953
- Zhao, MC; Schmutz, P; Brunner, S; Liu, M; Song, G: Atrens, A: An exploratory study of the corrosion of Mg alloys during interrupted salt spray testing, ‘Corrosion Science’, vol.51, no.6, 2009, 1277–1292.
- Aslan, N: Application of response surface methodology and central composite rotatable design for modeling and optimization of a multi gravity separator for chromite concentration, ‘Powder Technology’, vol. 185, no. 1, 2008, 80-86.
- Uhlig, H: The Corrosion Handbook, J. Wiley Publication, New York 1948.
- Zhao, MC; Liu, M; Song, G: Influence of microstructure on corrosion of as-cast ZE41, ‘Advanced Engineering Materials’, vol. 10, no. 1, 2008, 104–111.
- Peng, L; Chang, J; Guo, X; Atrens, A; Ding, W; Peng, Y: Influence of heat treatment and microstructure on the corrosion of magnesium alloy Mg–10Gd–3Y–0.4Zr, ‘Journal of Applied Electrochemistry’, vol.39, no.6, 2009, 913-920.
- Song, G; Atrens, A: Corrosion mechanisms of magnesium alloys, ‘Advanced Engineering Materials’, vol. 1, no. 1, 1999, 11–33.
- Zeng, RC; Chen, J; Dietzel, Zettler, R; Santos, JF; Nascimento, L; and Kainer, K U: “Corrosion of friction stir welded magnesium alloy AM50, ‘Corrosion Science’, vol. 51, no. 8, 2009, 1738-1746.
- Holly J Martin; Horstemeyer, M F; Paul T Wang: Quantification of corrosion mechanisms under immersion and salt-spray environments on an extruded AZ31 magnesium alloy, ‘Corrosion Science’, vol. 53, 2012, 194–208.
- Song, G: Recent Progress in Corrosion and Protection of Magnesium Alloys, ‘Advanced Engineering Materials’, vol. 7, no. 7, 2005, 563-586.
- Hara, N; Kobayashi, Y; Kagaya, D; Akao, N: Formation and breakdown of surface films on magnesium and its alloys in aqueous solutions, ‘Corrosion Science’, vol. 49, no. 1, 2007, 166-175.
- Zhi-min, Z; XU, H; Cheng, L: Corrosion properties of plastically deformed AZ80 magnesium alloy, ‘Transactions of Nonferrous Metals Society of China’, vol. 20, no. 2, 2010, 697-702.
- Wang, L; Zhang, B; Shinohara T: Corrosion Behaviour of AZ91 Magnesium alloy in dilute NaCl solutions, ‘Materials & Design’, vol. 31, no. 2, 2010, 857-863
- Effect of Tool Pin Profiles on Joint Characteristics of Under Water Friction STIR Welded AA2519-T87 Aluminium Alloy
Abstract Views :163 |
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Authors
Affiliations
1 Dept of Manufacturing Engg, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
2 Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
1 Dept of Manufacturing Engg, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
2 Centre for Materials Joining and Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu, IN
Source
Manufacturing Technology Today, Vol 14, No 11 (2015), Pagination: 21-28Abstract
AA2519-T87 is an age hardenable aluminium alloy used in the fabrication of light combat vehicles in the military application. Fusion welding of this aluminium alloy results in solidification related problems like porosity, hot cracking, etc. In order to overcome such problems, friction stir welding (FSW) process is used to join this material. The thermal cycle experienced by the thermo mechanical affected zone (TMAZ) and heat affected zone (HAZ) is causing grain coarsening and precipitates dissolution and resulting in poor joint properties. To get rid of this problem, under water friction stir welding (UWFSW) process can be adopted. However, the material flow during friction stirring will be entirely different in FSW and UWFSW. Hence an investigation is undertaken to study the effect of tool pin profiles on stir zone characteristics and the resultant tensile properties of the joints fabricated by UWFSW. Four different pin profiles, namely, straight cylindrical (STC), taper cylindrical (TAC), straight threaded cylindrical (STC), and taper threaded cylindrical (TTC) were used to fabricate the joints. From this investigation, it is found that the joint made by taper threaded pin profiled tool exhibited higher tensile properties and this may be attributed to the grain boundary strengthening and narrowing of lower hardness distribution region (LHDR).Keywords
Underwater Friction Stir Welding, Pin Profiles, Microstructure, Tensile Properties, Microhardness.- Simulation of Temperature and Residual Stress Field in Friction Stir Welded AISI 304 Stainless Steel Joints
Abstract Views :162 |
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Authors
Affiliations
1 Dept of Mech Engg., Sree Vidyanikethan Engineering College, Tirupati, AP, IN
2 Centre for Materials Joining Research (CEMAJOR), Dept of Manufacturing Engg., Annamalai University, Annamalai Nagar, TN, IN
1 Dept of Mech Engg., Sree Vidyanikethan Engineering College, Tirupati, AP, IN
2 Centre for Materials Joining Research (CEMAJOR), Dept of Manufacturing Engg., Annamalai University, Annamalai Nagar, TN, IN
Source
Manufacturing Technology Today, Vol 17, No 1 (2018), Pagination: 7-13Abstract
Three-dimensional nonlinear thermal and thermo-mechanical numerical simulations are conducted for the friction stir welding of AISI 304 stainless steel. The finite element analysis code SYSWELD was used to simulate the results using inverse approach. Defect free welds were made experimentally using a rotational speed, welding speed and shoulder diameter of 800 rpm, 90 mm/min and 20 mm respectively. Residual stress measurement was carried out with X-ray stress analyzer employing CrKα radiation. The transient temperature fields were obtained by finite element simulation and the residual stresses in the welded plate are calculated using a three-dimensional elastic–plastic thermo-mechanical simulation. The results of the simulation are in good agreement with that of experimental results.Keywords
Stainless Steel, Friction Stir Welding, Finite Element Analysis, Temperature Distribution, Residual Stress.- Application of Desirability Based Hybrid Anfis Model for Optimization of Electro Discharge Machining of Hastealloy C-276
Abstract Views :194 |
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Authors
Affiliations
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IN
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IN
Source
Manufacturing Technology Today, Vol 17, No 7 (2018), Pagination: 32-43Abstract
Hastealloy C-276 is a difficult to machine superalloy and comprehensively employed in various engineering fields such as nuclear applications, aerospace and gas turbines. Hastealloy C-276 having better strength and poor thermal conductivity makes them difficult to machine materials which results in reduced life of the cutting tool and poor machinability by conventional methods of material removal. Advanced metal removal methods have evolved to accomplish those kind of needs and appealed to be an opposite alternative approach to traditional machining. Electro Discharge Machining (EDM) is considered as one of the nontraditional metal removal process which is especially adopted for machining of hard to machine materials. In this present investigation Spark Erosion Machining has been employed for machining of Haste Alloy C-276 with copper electrode by using Taguchi’s experimental design approach. Applied current (A), pulse on time (TON) and pulse off time (TOFF) were considered as the input process variables and the performance of spark erosion machining has been assessed by considering the performance measures such as material removal rate, surface roughness, overcut, form and orientation tolerance errors. The significance of process variables were analyzed by Analysis of Variance (ANOVA). Multi objective optimization has been performed by desirability function analysis to obtain better machining performance. In addition DFA based Adaptive Neuro Fuzzy Inference System (ANFIS) have been evolved to optimize the desired performance characteristics.Keywords
EDM, Haste Alloy, Taguchi’s Design, Desirability Function Analysis, ANFIS.References
- Ahilan, C; Kumanan, S; Sivakumaran, N: Multi-objective optimisation of CNC turning process using grey based fuzzy logic. 'Int. J. Mach. Mach. Mater.', vol.5, 2009, 434–451.
- Baraskar SS; Banwait, SS and Laroiya, SC: Multi-objective optimisation of electrical discharge machining process using Derringer’s desirability function approach, 'Int. J. Mater. Eng. Innova'., vol. 2, no. 3/4, 2011, 203-221.
- Bharti, PS; Maheshwari, S; Sharma, C: Experimental investigation of Inconel 718 during die- sinking electric discharge machining, 'Int. J. Eng. Sci. Technol'., vol. 2, 2010, 6464–6473.
- Derringer, G; Suich, R: Simultaneous Optimization of Several Response Variables, 'J. Quality Technol'., vol. 12, no. 4, 1980, 214-219.
- Dhanabalan, C; Sivakumar, K; Sathiya Narayanan, C: Optimization of machining parameters of EDM while machining Inconel 718 for form tolerance and orientation Tolerance, 'Indian J. Eng. Mater. Sci'., vol. 20, 2013, 391–397.
- Ho, KH; Newman, ST: State of the art electrical discharge machining (EDM), 'Int. J. Mach. tools and manuf'., vol. 43, 2003, 1287 – 1300.
- Jang, JSR; Sun, CT; Mizutani, E: Neuro-fuzzy and Soft Computing: A Comput. App. Learn. Mach. Intelligence, Prentice Hall, Upper Saddle River, NJ, 1997.
- Kuppan, P; Narayanan, S; Rajadurai, A; Adithan, M: Effect of EDM parameters on hole quality characteristics in deep hole drilling of Inconel 718 superalloy, 'Int. J. Manuf. Res'., vol. 10, no. 1, 2015, 45-63.
- Kuppan, P; Rajadurai, A; Narayanan, S: Influence of EDM process parameters in deep hole drilling of Inconel 718, 'Int. J. Adv. Manuf. Technol'., 38, 2008, 74–84.
- Lin, JL; Wang, KS; Yan, BH; Tarng, YS: Optimization of the electrical discharge machining process based on the Taguchi method with fuzzy logics, 'J. Mater. Process. Technol'., vol. 102, 2000, 48-55.
- Luis, CJ; Puertas, I; Villa, G: Material removal rate and electrode wear study on the EDM of silicon carbide, 'J. Mater. Process. Technol'., 165, 2005, 889–896.
- Pradhan, MK & Biswas, CK: Neuro-fuzzy and neural network-based prediction of various responses in electrical discharge machining of AISID2 steel “NF and NN based prediction of responses in EDM of D2 steel, 'Int. J. Adv. Manuf. Technol'., vol. 50(5-8), 2010, 591–610.
- Qu, NS; Hu, Y; Zhu, D; Xu, ZY: Electrochemical machining of blisk channels with progressive pressure electrolyte flow. Mater. Manuf. Process'. vol. 29, 2014, 572-578.
- Rupesh Kumar Pandey, SS Panda: Optimization of bone drilling parameters using grey-based fuzzy algorithm, Meas., vol. 47, 2014, 386–392.
- Pervaiz, Salman; Rashid, Amir; Deiab, Ibrahim; Nicolescu, Mihai: Influence of tool materials on machinability of titanium- and nickel-based alloys: A Review, 'Mater. Manuf. Process'., vol. 29, 2014, 219-252.
- Sengottuvel, P; Satishkumar, S; Dinakaran, D: Optimization of multiple characteristics of EDM parameters based on desirability approach and fuzzy modeling., 'Procedia Eng'., 64, 2013, 1069-1078.
- Suresh, P; Marimuthu, K; Ranganathan, S; Rajmohan, T: Optimization of machining parameters in turning of Al−SiC−Gr hybrid metal matrix composites using grey-fuzzy algorithm, 'Trans. Nonferrous Met. Soc. China', vol. 24, 2014, 2805−2814.
- Teimouri, R; Baseri, H; Moharami, R: Multiresponses optimization of ultrasonic machining process, 'J. Intel. Manuf'., vol. 26, 2015, 745-753.
- Caydas, Ulas; Hascalık, Ahmet; Ekici, Sami: An adaptive neuro-fuzzy inference system (ANFIS) model for wire-EDM, 'Expert Syst. Appl'., vol. 36, 2009, 6135–6139.
- Wu, Q: Serrated chip formation and tool-edge wear in high-speed machining of advanced aerospace materials, Utah State University, Logan, Utah, 2007.
- Xiaojiang Cai; Sheng Qin; Junli Li; Qinglong An; Ming Chen: Experimental investigation on surface integrity of end milling nickel based alloy - Inconel 718, 'Mach. Sci. Technol. Int. J'., vol. 18, 31-46
- Experimental Investigations on Wire Edm of AI-SiC Composite Using Taguchi’s Approach
Abstract Views :231 |
PDF Views:2
Authors
Affiliations
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College Autonomous), Tirupati, Andhra Pradesh, IN
1 Department of Mechanical Engineering, Sree Vidyanikethan Engineering College Autonomous), Tirupati, Andhra Pradesh, IN
Source
Manufacturing Technology Today, Vol 17, No 9 (2018), Pagination: 12-20Abstract
The machinability study on Wire Electro Discharge Machining (WEDM) of Al6061/20%SiC has been investigated in the present exploration. The objective of this present investigation is to determine the best possible process parameter to obtain better machining performance during wire EDM of Al6061 matrix reinforced with 20 wt. % SiC which is fabricated through the stir casting processes. The machining parameters such as pulse on time, pulse off time (delay time) and servo voltage are deemed as input process variables. Rate of material removal and roughness of the machined surface were considered as performance measures under this investigation. Taguchi’s design of experiment approach has been adopted for designing the experimental runs and L9 orthogonal array has been selected for conducting the experiments. Analysis of Variance (ANOVA) is adopted for ascertaining the significance of process parameters. Taguchi’s response analysis has been employed to determine the ascendancy of process parameters and the optimum process parameters were determined to obtain better machining performance.Keywords
Al-SiC Composites, WEDM, Taguchi’s Approach, Orthogonal Array, ANOVA, Optimization.References
- Kılıckap, E; Cakır, O; Aksoy, M; Inan, A: Study of tool wear and surface roughness in machining of homogenised SiC-p reinforced aluminium metal matrix composite, 'Journal of Materials Processing Technology', 2005, 164, 862-867.
- Muthukrishnan, N; Murugan, M; Rao, KP: Machinability issues in turning of Al-SiC (10p) metal matrix composites, 'The International Journal of Advanced Manufacturing Technology', 39(3-4), 2008, 211-218.
- Bhushan, RK; Kumar, S; Das, S: Effect of machining parameters on surface roughness and tool wear for 7075 Al alloy SiC composite. The International Journal of Advanced Manufacturing Technology, 50 (5-8), 2010, 459-469.
- Manna, A; Bhattacharayya, B: A study on machinability of Al/SiC-MMC, 'Journal of Materials Processing Technology', 140 (1-3), 2003, 711-716.
- Ozben, T; Kilickap, E; Cakır, O: Investigation of mechanical and machinability properties of SiC particle reinforced Al-MMC, 'Journal of Materials Processing Technology', 198 (1-3), 2008, 220-225.
- Balbir Singh; Jatinder Kumar; Sudhir Kumar; Influences of Process Parameters on MRR Improvement in Simple and Powder-Mixed EDM of AA6061/10%SiC Composite, 'Journal of Materials and Manufacturing Processes', 30 (3), 2015.
- Ho, KH; Newman, ST; Rahimifard, S; Allen, RD: State of the art in wire electrical discharge machining (WEDM), 'International Journal of Machine Tools and Manufacture', 44 (12-13), 2004, 1247-1259.
- Ross, PJ: Taguchi Techniques for Quality Engineering, McGraw-Hill, New York, USA, Chap. 7, 2005.
- Sahoo, AK & Pradhan, S: Modeling and optimization of Al/SiCp MMC machining using Taguchi approach, 'Measurement', 46 (9), 2013, 3064-3072.
- Chiang, KT & Chang, FP Optimization of the WEDM process of particle-reinforced material with multiple performance characteristics using grey relational analysis, 'Journal of Materials Processing Technology', 180 (1-3), 2006, 96-101.
- Huang, JT & Liao, YS: Optimization of machining parameters of wire-EDM based on grey relational and statistical analyses, 'International Journal of Production Research', 41(8), 2003, 1707-1720.
- Kanlayasiri, K & Boonmung, S: Effects of wire-EDM machining variables on surface roughness of newly developed DC 53 die steel: Design of experiments and regression model, 'Journal of Materials Processing Technology', 192, 2007, 459-464.
- Ramakrishnan, R & Karunamoorthy, L: Multi response optimization of wire EDM operations using robust design of experiments. 'The International Journal of Advanced Manufacturing Technology', 29 (1-2), 2006, 105-112.
- Yang, RT; Tzeng, CJ; Yang, YK; Hsieh, MH: Optimization of wire electrical discharge machining process parameters for cutting tungsten, 'The International Journal of Advanced Manufacturing Technology', 60 (1-4), 2012, 135-147.
- Singh, B; Kumar, J; Kumar, S: Investigation of the tool wear rate in tungsten powder-mixed electric discharge machining of AA6061/10% SiCp composite. Materials and manufacturing processes, 31(4), 2016, 456-466.
- Bhushan, RK: Optimization of cutting parameters for minimizing power consumption and maximizing tool life during machining of Al alloy SiC particle composites. Journal of Cleaner Production, 39, 2013, 242-254.
- Suresh Kumar, S; Uthayakumar, M; Kumaran, S T; Parameswaran, P; Mohandas, E: Electrical discharge machining of Al (6351)-5% SiC-10% B 4 C hybrid composite: a grey relational approach, 'Modelling and Simulation in Engineering', 2014, 24.
- Thirumalai Kumaran, S & Uthayakumar, M: Investigation on the machining studies of AA6351-SiC-B4C hybrid metal matrix composites, 'International Journal of Machining and Machinability of Materials' 2, 15(3-4), 2014, 174-185.
- Suresh Kumar, SS; Uthayakumar, M; Kumaran, ST; Parameswaran, P; Mohandas, E; Kempulraj, G & Natarajan, SA: Parametric optimization of wire electrical discharge machining on aluminium based composites through grey relational analysis, 'Journal of Manufacturing Processes', 20, 2015, 33-39