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GTA welding of copper thick plates by using ERCuTi welding materials

  • Y. N. Li*
  • , Z. L. Peng
  • , J. C. Yan
  • *Corresponding author for this work
  • Qingdao University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The new welding material - ERCuTi alloys filler metals were developed specially for gas tungsten arc welding (GTAW) of copper. The hot cracking in welding copper is inhibited completely as the addition of de-oxidant element Ti in copper welding material. The degree of addition of Ti (2-4wt%) is critical when the susceptibility of cracking is to be suppressed. If the level is allowed to exceed 4wt%, more low-melting point eutectics (β-TiCu4 and TiCu2) will be formed in the welds, and cracking susceptibility will be increased again. Results of mechanical properties tests show that although adding Ti increases the hardness and strength of the weld compared to the base metal, the impact ductility and the plastic properties are not decreased significantly.

Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology XIV
EditorsTian Huang, Dawei Zhang, Bin Lin, Yanling Tian, Weiguo Gao, Anping Xu
PublisherTrans Tech Publications Ltd
Pages409-413
Number of pages5
ISBN (Print)9783037852378
DOIs
StatePublished - 2012
Event14th International Manufacturing Conference in China, IMCC2011 - Tianjin, China
Duration: 13 Oct 201115 Oct 2011

Publication series

NameMaterials Science Forum
Volume697-698
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference14th International Manufacturing Conference in China, IMCC2011
Country/TerritoryChina
CityTianjin
Period13/10/1115/10/11

Keywords

  • Copper
  • ERCuTi welding material
  • He-GTA welding

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