Preparation of metallic glass/crystalline metal conjoined parts by plastic flow joining process

Ryo Tominaga, Kenji Amiya, Akira Tokairin, Youji Fujimoto, Seiichi Takahashi, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this study, a new joining technique, plastic flow joining, was developed to join a Zr-based glassy alloy part with a 430 stainless steel part. In the plastic flow joining process, the 430 stainless steel part was strictly deformed by a punch indentation, which makes material flowing into grooves on the surface of Zr-based glassy alloy part and these two parts conjoined together. Besides, crystallization of bulk metallic glass part can be avoided during the joining process because of no required heat source. The joining strength of the conjoined part mainly depends on both the filling area ratio of grooves and the magnitude of work hardening of 430 stainless steel around grooves. In this paper, the joining condition such as punch geometry and indentation load is examined to obtain a high joining strength. As a result, the Zr-based glassy alloy part can be strongly joined with 430 stainless steel part under an optimized joining condition (wedge punch with θ = 75°and indentation load of 22.5 kN). The joining strength reaches 552 MPa, which is about 1.3 times higher than the shear strength of 430 stainless steel (428 MPa).

Original languageEnglish
Pages (from-to)161-164
Number of pages4
JournalJournal of Metastable and Nanocrystalline Materials
Volume24-25
DOIs
Publication statusPublished - 2005

Keywords

  • Joining strength
  • Metallic glass
  • Plastic flow
  • Room temperature joining

ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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