Title:
HIGH-ENTROPY CAST IRON AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/148060
Kind Code:
A1
Abstract:
Disclosed are high-entropy cast iron and a preparation method therefor. The alloy composition of the high-entropy cast iron is CoaCrbFecNidCeXf, wherein X is a trace element, a, b, c, d, e and f are the molar percentages of the corresponding elements, respectively, a > 5%, b > 5%, c > 5%, d > 5%, a + b + c + d > 90%, 0.2% < e < 0.4%, and f ≥ 0%. According to the present invention, a single principal element diagram of original cast iron is expanded into multiple principal elements, such that the matrix structure can be composed of two phases of FCC and a compound or FCC and a graphite phase, and good mechanical properties are obtained. During the alloy design, the positive influences of a trace element on the oxidation resistance, corrosion resistance and high-temperature stability of an alloy are fully utilized, and the alloy has a good comprehensive performance.
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Inventors:
CHEN ZHENG (CN)
FAN YU (CN)
LIU SHUANG (CN)
XIAO GANG (CN)
WANG LIDONG (CN)
LIU JINZHU (CN)
LIU MENG (CN)
LIU WEI (CN)
CHEN BO (CN)
FAN YU (CN)
LIU SHUANG (CN)
XIAO GANG (CN)
WANG LIDONG (CN)
LIU JINZHU (CN)
LIU MENG (CN)
LIU WEI (CN)
CHEN BO (CN)
Application Number:
PCT/CN2021/119588
Publication Date:
July 14, 2022
Filing Date:
September 22, 2021
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
SHANDONG YONGLE FOUNDRY MACHINERY CO LTD (CN)
JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTD (CN)
SHANDONG YONGLE FOUNDRY MACHINERY CO LTD (CN)
JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTD (CN)
International Classes:
C22C30/00; B33Y70/00; C21C1/08; C21C1/10; C22C1/02
Foreign References:
| CN112853190A | 2021-05-28 | |||
| CN107675061A | 2018-02-09 | |||
| CN108315630A | 2018-07-24 | |||
| CN108396199A | 2018-08-14 | |||
| CN111636027A | 2020-09-08 | |||
| CN109252083A | 2019-01-22 |
Other References:
ZHANG L.J.; YU P.F.; FAN J.T.; ZHANG M.D.; ZHANG C.Z.; CUI H.Z.; LI G.: "Investigating the micro and nanomechanical properties of CoCrFeNi-Cx high-entropy alloys containing eutectic carbides", MATERIALS SCIENCE, ELSEVIER, AMSTERDAM, NL, vol. 796, 7 August 2020 (2020-08-07), AMSTERDAM, NL, XP086268235, ISSN: 0921-5093, DOI: 10.1016/j.msea.2020.140065
XU ZEZHOU, ET AL.: "Research Progress of CoCrFeNi High Entropy Alloy", LIAONING KEJI DAXUE XUEBAO, LIAONING KEJI DAXUE XUEBAO (2013), 36(6), 569-572 CODEN: LKDXA5; ISSN: 1674-1048, LIAONING KEJI DAXUE XUEBAO (2013), 36(6), 569-572CODEN: LKDXA5; ISSN: 1674-1048, vol. 42, no. 5, 31 October 2019 (2019-10-31), Liaoning Keji Daxue Xuebao (2013), 36(6), 569-572CODEN: LKDXA5; ISSN: 1674-1048 , pages 350 - 356, XP055949495, ISSN: 1674-1048, DOI: 10.13988/j.ustl.2019.05.006
XU ZEZHOU, ET AL.: "Research Progress of CoCrFeNi High Entropy Alloy", LIAONING KEJI DAXUE XUEBAO, LIAONING KEJI DAXUE XUEBAO (2013), 36(6), 569-572 CODEN: LKDXA5; ISSN: 1674-1048, LIAONING KEJI DAXUE XUEBAO (2013), 36(6), 569-572CODEN: LKDXA5; ISSN: 1674-1048, vol. 42, no. 5, 31 October 2019 (2019-10-31), Liaoning Keji Daxue Xuebao (2013), 36(6), 569-572CODEN: LKDXA5; ISSN: 1674-1048 , pages 350 - 356, XP055949495, ISSN: 1674-1048, DOI: 10.13988/j.ustl.2019.05.006
Attorney, Agent or Firm:
XUZHOU QIANQIU INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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