Effect of pulsed current micro plasma arc welding process parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 sheets

金属学报(英文版), 2012, 25(3): 179-189.

^1, , ^2, , ^3,

1.Department of Mechanical Engineering, Anil Neerukonda Institute of Technology & Sciences, Visakhapatnam, India

2.Department of Mechanical Engineering, AU College of Engineering, Andhra University, Visakhapatnam, India

3.Centurion University of Technology & Management, Odisha, India

基金项目: The authors would like to thank Shri.R.Gopla Krishnan,director,M/s Metallic Bellows(I) Pvt Ltd,Chennai,India for his support to carry out experimentation work

Effect of pulsed current micro plasma arc welding process parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 sheets

Kondapalli Siva Prasad ^1, , Chalamalasetti Srinivasa Rao ^2, , Damera Nageswara Rao ^3,

1.Department of Mechanical Engineering, Anil Neerukonda Institute of Technology & Sciences, Visakhapatnam, India

2.Department of Mechanical Engineering, AU College of Engineering, Andhra University, Visakhapatnam, India

3.Centurion University of Technology & Management, Odisha, India

Keywords： Pulsed current

The paper focuses on developing mathematical models to predict grain size and ultimate tensile strength of pulsed current micro plasma arc welded Inconel 625 nickel alloy.Four factors,five levels,central composite rotatable design matrix is used to optimize the number of experiments.The mathematical models have been developed by response surface method.The adequacy of the models is checked by analysis of variance technique.By using the developed mathematical models,grain size and ultimate tensile strength of the joints can be predicted with 99％0 confidence level.Contour plots are drawn to study the interaction effect of pulsed current micro plasma arc welding parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 weld ioints.

参考文献

[1]	M. Balasubramanian,V. Jayabalan,V. Balasubramanian.Optimizing the Pulsed Current Gas Tungsten Arc Welding Parameters[J].材料科学技术学报（英文版）,2006(06):821-825.
[2]	N. Kahraman;M. Taskm;B. Gulenc;A. Durgutlu .An investigation into the effect of welding current on the plasma arc welding of pure titanium[J].Kovove materialy,2010(3):179-184.
[3]	S. BABU,T. SENTHIL KUMAR,V. BALASUBRAMANIAN.Optimizing pulsed current gas tungsten arc welding parameters of AA6061 aluminium alloy using Hooke and Jeeves algorithm[J].中国有色金属学会会刊（英文版）,2008(05):1028-1036.

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材料期刊网

Effect of pulsed current micro plasma arc welding process parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 sheets

参考文献