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Experimental investigation of Tie6Ale4V titanium alloy and 304L stainlesssteel friction welded with copper interlayer


□ R. KUMAR;M. BALASUBRAMANIAN

Mechanical Engineering SKP Institute of Technology Tiruvannamalai Tamilnadu 606611 India RMK College of Engineering and Technology Tiruvallur Tamilnadu 601206 India

摘 要:

The basic principle of friction welding is intermetallic bonding at the stage of super plasticity attained with self-generating heat due tofriction and finishing at upset pressure. Now the dissimilar metal joints are especially popular in defense, aerospace, automobile, bio-medical,refinery and nuclear engineerings. In friction welding, some special alloys with dual phase are not joined successfully due to poor bondingstrength. The alloy surfaces after bonding also have metallurgical changes in the line of interfacing. The reported research work in this area isscanty. Although the sound weld zone of direct bonding between Tie6Ale4V and SS304L was obtained though many trials, the joint was notsuccessful. In this paper, the friction welding characteristics between Tie6Ale4V and SS304L into which pure oxygen free copper (OFC) wasintroduced as interlayer were investigated. BoxeBehnken design was used to minimize the number of experiments to be performed. The weldjoint was analyzed for its mechanical strength. The highest tensile strength between Tie6Ale4V and SS304L between which pure copper wasused as insert metal was acquired. Micro-structural analysis and elemental analysis were carried out by EDS, and the formation of intermetalliccompound at the interface was identified by XRD analysis.Copyright 2015, China Ordnance Society. Production and hosting by Elsevier B.V. All rights reserved.

分类号:

  • [TJ]
  • > 工业技术
  • > 武器工业

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