Title:
HIGH-STRENGTH AND HIGH-CONDUCTIVITY CU-AG-SC ALLOY AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/228503
Kind Code:
A1
Abstract:
A high-strength and high-conductivity Cu-Ag-Sc alloy and a preparation method therefor. The alloy comprises the following components in mass percent: 1-10% of Ag, and 0.05-0.5% of Sc, with the balance being Cu. The hardness of the alloy is 88-148 HV, and the conductivity is 83%-88% IACS. The preparation method comprises the following steps: (1) placing metal Ag and metal Sc in an electric arc furnace for vacuum smelting, and performing furnace cooling to obtain an Ag-Sc intermediate alloy; (2) placing the Ag-Sc intermediate alloy, electrolytic copper, and metal Ag in an induction furnace to smelt under a vacuum condition at 1200-1300°C, and performing casting and furnace cooling; (3) heating to 700-850°C for heat treatment under an inert atmosphere condition, and performing water quenching to normal temperature; and (4) heating to 400-500°C for aging treatment under the inert atmosphere condition, and performing air cooling to normal temperature. According to the method of the present invention, a Cu-Ag-Sc alloy in which all components are evenly distributed is obtained by means of the intermediate alloy Ag-Sc, and the problem of difficulty for Sc to melt in Cu is solved.
Inventors:
WANG ENGANG (CN)
AN BAILING (CN)
ZHANG LIN (CN)
AN BAILING (CN)
ZHANG LIN (CN)
Application Number:
PCT/CN2020/086262
Publication Date:
November 19, 2020
Filing Date:
April 23, 2020
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
C22C9/00; C22C1/03; C22F1/02; C22F1/08
Domestic Patent References:
| WO2008030368A1 | 2008-03-13 |
Foreign References:
| CN110004320A | 2019-07-12 | |||
| CN106282651A | 2017-01-04 | |||
| CN105803246A | 2016-07-27 | |||
| CN1985014A | 2007-06-20 |
Attorney, Agent or Firm:
SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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