Title:
WEAR-RESISTANT BLADE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/236728
Kind Code:
A1
Abstract:
The present invention provides a wear-resistant blade for a turbodrill, and a preparation method therefor and the use thereof, and relates to the technical field of deep geological drilling. The wear-resistant blade specifically comprises a blade substrate 1, an AlxCoCrFeNi high-entropy alloy coating 2, which has a multi-layer structure and is located on the surface of the substrate, and a regulating layer 3, which is arranged between any two adjacent layers of the AlxCoCrFeNi high-entropy alloy coatings, wherein x ranges from 0 to 2. In the present invention, a gradient coating is prepared by sequentially preparing an AlxCoCrFeNi high-entropy alloy coating by means of increasing the atomic percentage of Al, and then alternatively compounding same with an Ni-P/Al2O3 regulating layer, such that the binding capacity of the high-entropy alloy coating to the blade substrate is enhanced; and by subjecting the high-entropy alloy coating to a vacuum heat treatment, the structure compactness and hardness of the coating and the binding force between the coatings are improved, and thus the comprehensive wear resistance of a blade of a turbodrill is greatly improved. The wear-resistant blade provided in the solution of the present invention has good mechanical strength and wear resistance, can be used as an operating blade for a turbodrill, and is applicable for various harsh working conditions of drilling.
Inventors:
KANG JIAJIE (CN)
YUE WEN (CN)
ZHOU YONGKUAN (CN)
ZHU LINA (CN)
WANG CHENGBIAO (CN)
FU ZHIQIANG (CN)
TIAN BIN (CN)
SHE DINGSHUN (CN)
MENG DEZHONG (CN)
LIANG JIAN (CN)
LU XIAOLIANG (CN)
YUE WEN (CN)
ZHOU YONGKUAN (CN)
ZHU LINA (CN)
WANG CHENGBIAO (CN)
FU ZHIQIANG (CN)
TIAN BIN (CN)
SHE DINGSHUN (CN)
MENG DEZHONG (CN)
LIANG JIAN (CN)
LU XIAOLIANG (CN)
Application Number:
PCT/CN2023/094135
Publication Date:
December 14, 2023
Filing Date:
May 15, 2023
Export Citation:
Assignee:
UNIV CHINA GEOSCIENCES BEIJING (CN)
ZHENGZHOU INSTITUTE CHINA UNIV OF GEOSCIENCES BEIJING (CN)
ZHENGZHOU INSTITUTE CHINA UNIV OF GEOSCIENCES BEIJING (CN)
International Classes:
C23C4/02; C23C4/073; C23C4/129
Foreign References:
| CN114990465A | 2022-09-02 | |||
| CN114032489A | 2022-02-11 | |||
| CN101886279A | 2010-11-17 | |||
| CN109797303A | 2019-05-24 | |||
| EP3470543A1 | 2019-04-17 |
Other References:
CHUN-LI ZHANG, ZHOU QI,WAN WEN-LU, SONG FU-YAN, ZENG QI: "Research Status About Composite Electroplating of Nickel-based Alumina Nanoparticles", PLATING & FINISHING, vol. 35, no. 4, 15 April 2013 (2013-04-15), pages 13 - 18, XP093114057, ISSN: 1001-3849
Attorney, Agent or Firm:
BEIJING XINGZHIXIANGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. et al. (CN)
Download PDF: