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| 1 | Microstructure,Tensile and Impact Toughness Properties of Friction Stir Welded Mild Steel显示文摘Microstructure,tensile and impact toughness properties and fracture location of friction stir welded AISI 1018 mild steel were revealed.The AISI 1018 mild steel plates with thickness of 5 mm were friction stir welded by tungsten based alloy tool with tool rotational speed of 1000 r/min and welding speed of 50 mm/min.Tensile strength of stir zone is higher(8%)compared to that of the base metal.This may be due to the formation of finer grains in the weld nugget region under the stirring action of the rotating tool.The ductility and impact toughness of the joints are decreased compared to those of the base metal owing to the inclusion of tungsten particles in the weld region. | A K Lakshminarayanan V Balasubramanian M Salahuddin | 2010 | Journal of Iron and Steel Research(International)2010，17，10： | 10 |
| 2 | Evaluation of Microstructure and Mechanical Properties of Laser Beam Welded AISI 409M Grade Ferritic Stainless Steel显示文摘The microstructure analysis and mechanical properties evaluation of laser beam welded AISI 409M ferritic stainless steel joints are investigated.Single pass autogeneous welds free of volumetric defects were produced at a welding speed of 3 000 mm/min.The joints were subjected to optical microscope,scanning electron fractographe,microhardness,transverse and longitudinal tensile,bend and charpy impact toughness testing.The coarse ferrite grains in the base metal were changed into dendritic grains as a result of rapid solidification of laser beam welds.Tensile testing indicates overmatching of the weld metal is relative to the base metal.The joints also exhibited acceptable impact toughness and bend strength properties. | A K Lakshminarayanan V Balasubramanian | 2012 | Journal of Iron and Steel Research(International)2012，19，1： | 9 |
| 3 | Application of Response Surface Methodolody to Prediction of Dilution in Plasma Transferred Arc Hardfacing of Stainless Steel on Carbon Steel显示文摘The application of response surface methodology was highlighted to predict and optimize the percentage of dilution of iron-based hardfaced surface produced by the PTA (plasma transferred arc welding) process.The experi- ments were conducted based on five-factor five-level central composite rotatable design with full replication technique and a mathematical model was developed using response surface methodology.Furthermore,the response surface methodology was also used to optimize the process parameters that yielded the lowest percentage of dilution. | V Balasubramanian A K Lakshminarayanan R Varahamoorthy S Babu | 2009 | Journal of Iron and Steel Research(International)2009，16，1： | 8 |
| 4 | Optimization of Friction Welding Process Parameters for Joining Carbon Steel and Stainless Steel显示文摘Friction welding is a solid state joining process used extensively currently owing to its advantages such as low heat input,high production efficiency,ease of manufacture,and environment friendliness.Materials difficult to be welded by fusion welding processes can be successfully welded by friction welding.An attempt was made to develop an empirical relationship to predict the tensile strength of friction welded AISI 1040 grade medium carbon steel and AISI 304 austenitic stainless steel,incorporating the process parameters such as friction pressure,forging pressure,friction time and forging time,which have great influence on strength of the joints.Response surface methodology was applied to optimize the friction welding process parameters to attain maximum tensile strength of the joint.The maximum tensile strength of 543 MPa could be obtained for the joints fabricated under the welding conditions of friction pressure of 90 MPa,forging pressure of 90 MPa,friction time of 6 s and forging time of 6 s. | R Paventhan P R Lakshminarayanan V Balasubramanian | 2012 | Journal of Iron and Steel Research(International)2012，19，1： | 6 |
| 5 | Effect of Autogenous Arc Welding Processes on Tensile and Impact Properties of Ferritic Stainless Steel Joints显示文摘The effect of autogeneous arc welding processes on tensile and impact properties of ferritic stainless steel conformed to AISI 409M grade is studied.Roiled plates of 4 mm thickness have been used as the base material for preparing single pass butt welded joints.Tensile and impact properties,microhardness,microstructure,and fracture surface morphology of continuous current gas tungsten arc welding (CCGTAW),pulsed current gas tungsten arc welding (PCGTAW),and plasma arc welding (PAW) joints are evaluated and the results are compared.It is found that the PAW joints of ferritic stainless steel show superior tensile and impact properties when compared with CCG- TAW and PCGTAW joints,and this is mainly due to lower heat input,finer fusion zone grain diameter,and higher fusion zone hardness. | A K Lakshminarayanan K Shanmugam V Balasubramanian | 2009 | Journal of Iron and Steel Research(International)2009，16，1： | 5 |
| 6 | Effect of absorption of some azoles on copper passivation in alkaline medium 显示文摘 | SUBRAMANIAN R LAKSHMINARAYANAN V | 2002 | Corrosion Science2002，44，3： | 2 |
| 7 | Effect of Welding Processes on Tensile and Impact Properties,Hardness and Microstructure of AISI 409M Ferritic Stainless Joints Fabricated by Duplex Stainless Steel Filler Metal显示文摘The effect of welding processes such as shielded metal arc welding,gas metal arc welding and gas tungsten arc welding on tensile and impact properties of the ferritic stainless steel conforming to AISI 409M grade is studied.Rolled plates of 4 mm thickness were used as the base material for preparing single pass butt welded joints.Tensile and impact properties,microhardness,microstructure and fracture surface morphology of the welded joints have been evaluated and the results are compared.From this investigation,it is found that gas tungsten arc welded joints of ferritic stainless steel have superior tensile and impact properties compared with shielded metal arc and gas metal arc welded joints and this is mainly due to the presence of finer grains in fusion zone and heat affected zone. | A K Lakshminarayanan K Shanmugam V Balasubramanian | 2009 | Journal of Iron and Steel Research(International)2009，16，5： | 2 |
| 8 | Effect of Welding Processes on Tensile Properties of AA6061 Aluminium Alloy Joints 显示文摘 | Lakshminarayanan A K Balasubramanian V Elangovan K | 2009 | Int J Adv Manuf Technol2009，40，34： | 1 |
| 9 | Microemulsion phase as a medium for electrodeposition of nickel and electron - transfer study of ferrocyanide - ferricyanide redox system 显示文摘 | Ganesh V Lakshminarayanan V | 2010 | J Colloid Interf Sci2010，349，1： | 1 |
| 10 | Effect of Adsorption of Some Azoles on Copper Passivation in Alkaline Medium 显示文摘 | SUBRAMANIAN R LAKSHMINARAYANAN V | 2002 | Corros Sci2002，44，3： | 1 |
| 11 | Effect of welding processes on tensile properties of AA6061 aluminium alloy joints 显示文摘 | Lakshminarayanan A K Balasubramanian V Elangovan K | 2009 | The International Journal of Advanced Manufacturing Technology2009，，： | 1 |
| 12 | Gas permeable (GP) versus non-GP lens wearers: Accuracy of orthok- eratology in myopia reduction 显示文摘 | Subramaniam SV Bennett ES Lakshminarayanan V | 2007 | Optom Vis Sci2007，84，5： | 1 |
| 13 | Assessment of fatigue life and crack growth resistance of friction stir welded AISI 409M ferritic stainless steel joints显示文摘 | Lakshminarayanan A K Balasubramanian V | 2012 | Materials Science and Engineering A2012，539，： | 1 |
| 14 | Electrocatalytic studies of cytochrome c functionalized single walled carbon nanotubes on self-assembled monolayer of 4-ATP on gold显示文摘 | Nagaraju D H Pandey R K Lakshminarayanan V | 2009 | J Electroanal Chem2009，627，12： | 1 |
| 15 | 查看详情显示文摘 | Ganesh V Pitchumani S Lakshminarayanan V | | 0，，： | 1 |
| 16 | The evolution of decision-making under risk:Framing effects in monkey risk preferences显示文摘 | Lakshminarayanan V R Chen M K Santos L R | 2011 | Journal of Experimental Social Psychology2011，47，3： | 1 |
| 17 | Preparation of high surface area nickel electrodeposit using a liquid crystal template technique 显示文摘 | GANESH V LAKSHMINARAYANAN V | 2004 | ElectrochimicaActa2004，49，35： | 1 |
| 18 | Electrochimica Acta显示文摘 | Subramanian R Lakshminarayanan V | 2000 | 2000,45(27):45012000，45，27： | 1 |
| 19 | Zernike polynomials: A guide 显示文摘 | V Lakshminarayanan A Fleck | 2011 | Journal of Modern Optics2011，58，7： | 1 |
| 20 | Electrocatalyt-ic studies of Cytochrome cfunetionalized single walled carbon nanotubes on self-assembled monolayerof 4-ATP on gold显示文摘 | Nagaraju DH Pandey RK Lakshminarayanan V | | 0，，： | 1 |
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