Friction stir welding of steels using a tool made of iridium-containing Nickel base superalloy

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

研究成果: Conference contribution

抄録

An addition of Ir to Ni base super alloy can increase the high temperature strength. An lr-containing Ni base superalloy produced through a process of rapid solidification casting, solution heat treatment and subsequent aging was found to exhibit a compressive strength greater than 500 MPa at 1000°C, which suggested it would be a suitable material to use in a friction stir welding (FSW) tool for high-softening-temperature materials, such as stainless steels and carbon steels. Precision tilt casting of this lr-containing Ni base superalloy into a copper mold followed by appropriate heat treatment, resulted in tools with a fine γ/γ′ microstructure containing intergranular carbides. These tools were subsequently proven capable of producing welds on AISI 304 stainless steel and ultrahigh carbon steel without large deformation or severe wear.

本文言語English
ホスト出版物のタイトルFriction Stir Welding and Processing VIII - Held During TMS 2015 144th Annual Meeting and Exhibition
編集者Yuri Hovanski, Murray W. Mahoney, Yutaka Sato, Rajiv S. Mishra
出版社Minerals, Metals and Materials Society
ページ77-82
ページ数6
ISBN(電子版)9781119082491
出版ステータスPublished - 2015 1 1
イベントFriction Stir Welding and Processing VIII - TMS 2015 144th Annual Meeting and Exhibition - Orlando, United States
継続期間: 2015 3 152015 3 19

出版物シリーズ

名前TMS Annual Meeting
2015-January

Other

OtherFriction Stir Welding and Processing VIII - TMS 2015 144th Annual Meeting and Exhibition
CountryUnited States
CityOrlando
Period15/3/1515/3/19

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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