Title:
TIC STRENGTHENED COCRNI MEDIUM-ENTROPY ALLOY COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/041693
Kind Code:
A1
Abstract:
The present invention relates to a TiC strengthened CoCrNi medium-entropy alloy composite material and a preparation method therefor. Said composite material has a composition of CoxCryNiz(TiC)v by molar percentage, wherein x, y and z values all range from 29.41% to 32.26%, and v value ranges from 3.22% to 11.77%. The TiC strengthened CoCrNi medium-entropy alloy composite material provided by the present invention has excellent mechanical properties. The compressive yield strength and breaking strength thereof can respectively reach 920 MPa and 1900 MPa, the compressive breaking strain can still reach 31%, and compared with cast CoCrNi medium-entropy alloys, the strength thereof is improved.
Inventors:
TONG YONGGANG (CN)
ZHANG XIANCHENG (CN)
CAI YANLIN (CN)
ZHAO PENGCHENG (CN)
TAN JIANPING (CN)
SUN BINHAN (CN)
CHEN HAO (CN)
ZHANG XIANCHENG (CN)
CAI YANLIN (CN)
ZHAO PENGCHENG (CN)
TAN JIANPING (CN)
SUN BINHAN (CN)
CHEN HAO (CN)
Application Number:
PCT/CN2021/081651
Publication Date:
March 03, 2022
Filing Date:
March 19, 2021
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
UNIV CHANGSHA SCIENCE & TECH (CN)
UNIV CHANGSHA SCIENCE & TECH (CN)
International Classes:
C22C30/00; C22C1/05; C22C32/00
Domestic Patent References:
| WO2020013524A1 | 2020-01-16 |
Foreign References:
| CN111254339A | 2020-06-09 | |||
| CN101215663A | 2008-07-09 | |||
| CN109097657A | 2018-12-28 | |||
| US20160326616A1 | 2016-11-10 | |||
| CN112063870A | 2020-12-11 |
Other References:
LIU X.W., LAPLANCHE G., KOSTKA A., FRIES S.G., PFETZING-MICKLICH J., LIU G., GEORGE E.P.: "Columnar to equiaxed transition and grain refinement of cast CrCoNi medium-entropy alloy by microalloying with titanium and carbon", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 775, 1 February 2019 (2019-02-01), CH , pages 1068 - 1076, XP055903819, ISSN: 0925-8388, DOI: 10.1016/j.jallcom.2018.10.187
Attorney, Agent or Firm:
SHANGHAI ZHI XIN PATENT AGENT LTD. (CN)
Download PDF: