Investigation of the joinability of B4c reinforced Alumix 231 based composite by using tig welding techniques


GÖKMEN U., ATEŞ H. , Karakoc H., ÇİNİCİ H.

European International Powder Metallurgy Congress and Exhibition, Euro PM 2012, Basel, Switzerland, 16 - 19 September 2012, vol.1 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Basel
  • Country: Switzerland

Abstract

In this study, weldability of B4C reinforced Alumix 231 based composite materials produced by using powder metallurgy techniques has been investigated. Various amount (0-5-10-15 (% wt) of B4C particles were added to the pre-alloyed Alumix 231 (Al-Cu %2,5-Mg %0,5-Si %14) powders and then mixed in a three dimensional turbula for 45 min. Powders were compacted and sintered in argon atmosphere at 640 °C for 4 h. These blocks were welded by using Tungsten Inert Gas welding (TIG) at 25 V, 135 A and 14 lt/min welding parameters in Ar atmosphere. Macro and micro examination have been carried out and effect of reinforcing elements on the structure of weld metal has been evaluated.