Feasibility of Iridium Containing Nickel Based Superalloy Tool to Friction Stir Spot Welding of High Strength Steel

Kunihiro Tanaka, Tatsuya Nakazawa, Koichi Sakairi, Yutaka Sato, Hiroyuki Kokawa, Toshihiro Omori, Kiyohito Ishida

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The authors have developed an Ir-containing Ni based superalloy tool, strengthened by γ′ precipitation, for friction stir welding (FSW) of steel and titanium alloys. The Ir-containing Ni based superalloy tool exhibited an acceptable performance during FSW of 304 stainless steel and Ti-6Al-4 V. In this study, feasibility of Ir-containing Ni based superalloy tool to friction stir spot welding (FSSW) of high strength steel was examined. FSSW was conducted on the lapped sheets of 1.2 mm-thick DP590 steel. The Ir-containing Ni base superalloy tool with 1.2 mm long probe successfully produced the spot welds on DP590 steel without macroscopic deformation. Even after 600 FSSW trials, the tool shape was hardly changed, suggesting that the Ir-containing Ni based superalloy tool is appropriate for FSSW of high strength steel.

Original languageEnglish
Title of host publicationMinerals, Metals and Materials Series
PublisherSpringer International Publishing
Pages29-35
Number of pages7
Edition9783319523828
DOIs
Publication statusPublished - 2017 Jan 1

Publication series

NameMinerals, Metals and Materials Series
Number9783319523828
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Keywords

  • FSSW
  • Ir
  • Ni-base superalloy
  • Welding tool

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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