Title:
METAL MATERIAL, CONNECTION TERMINAL, AND METHOD FOR PRODUCING METAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/182240
Kind Code:
A1
Abstract:
Provided are a metal material and connection terminal that are resistant to sulfide blackening even with the surfacemost exposure of an Ag-Sn alloy layer. Also provided is a method for producing a metal material that is capable of producing the provided metal material. A metal material 1 has a substrate 11 and an Ag-Sn coating layer 14 that coats a surface of the substrate 11, wherein the Ag-Sn coating layer 14 contains Ag and Sn, Ag-Sn alloy is exposed at the surface, and the average crystal grain diameter in a cross section parallel to the surface of the Ag-Sn coating layer 14 is less than 0.28 µm. In addition, a metal material 1 has, on a surface of a substrate 11, an Ag-Sn coating layer 14 that contains Ag and Sn and has Ag-Sn alloy exposed at the surface and is produced by forming a metal layer containing Ag and Sn on the surface of the substrate 11 and heating at a temperature greater than or equal to the melting point of Sn.
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Inventors:
KEMMOTSU RYO (JP)
FURUKAWA KINGO (JP)
FURUKAWA KINGO (JP)
Application Number:
PCT/JP2021/008189
Publication Date:
September 16, 2021
Filing Date:
March 03, 2021
Export Citation:
Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C25D5/50; C25D7/00
Domestic Patent References:
| WO2015068835A1 | 2015-05-14 |
Foreign References:
| JPH11350188A | 1999-12-21 | |||
| JP2014084476A | 2014-05-12 | |||
| JP2020111796A | 2020-07-27 | |||
| JP2020056055A | 2020-04-09 |
Attorney, Agent or Firm:
WENO & PARTNERS (JP)
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