Microstructures and electrical-mechanical properties of Cu-Cr-Zr and Cu-Cr-Zr-Ti alloys heat-treated in hydrogen

Atsunori Kamegawa, Yuta Abiko, Takahiro Kuriiwa, Masuo Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effect of hydrogen heat treatment on the electrical and mechanical properties of Cu-0.2Cr-xZr (x = 0, 0.15, 0.6, 1.2) and Cu-0.2Cr-0.6Zr-0.5Ti alloys was investigated. After hydrogen heat treatment, Cu5Zr precipitates decomposed with the formation of ZrH2 and TiH 2. For the Cu-Cr-Zr ternary alloys, high conductivity (i.e., >90% IACS) was achieved in Cu-0.2Cr-0.15Zr alloy after hydrogen heat treatment at 450°C while maintaining high tensile strength, more than 450 MPa. Compared with the properties of hydrogenated Cu-0.2Cr-0.6Zr and Cu-0.2Cr-0.6Zr-0.5Ti alloys, adding Ti to the Cu-Cr-Zr alloys with hydrogen heat treatment was effective in improving tensile strength. The alloy properties achieved after hydrogen heat treatment at 400°C for 5 h were 665 MPa and 56% IACS.

Original languageEnglish
Title of host publication8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
PublisherJohn Wiley and Sons Inc.
Pages2461-2468
Number of pages8
ISBN (Print)9781632660008
DOIs
Publication statusPublished - 2013 Jan 1
Event8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, United States
Duration: 2013 Aug 42013 Aug 9

Publication series

Name8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Volume3

Other

Other8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
CountryUnited States
CityWaikoloa, HI
Period13/8/413/8/9

Keywords

  • Copper
  • Cu-Cr-Zr alloy
  • Hydrogen heat-treatment

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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    Kamegawa, A., Abiko, Y., Kuriiwa, T., & Okada, M. (2013). Microstructures and electrical-mechanical properties of Cu-Cr-Zr and Cu-Cr-Zr-Ti alloys heat-treated in hydrogen. In 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 (pp. 2461-2468). (8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8; Vol. 3). John Wiley and Sons Inc.. https://doi.org/10.1007/978-3-319-48764-9_305