Method for improving quality of laser cladding refractory high-entropy alloy coating

Through the synergistic effect of solid solution strengthening and in-situ deoxidation, refractory high-entropy alloy powder and hydride powder are mixed and laser cladding is used to form a single-phase BCC structure coating, which solves the problem of poor coating quality in the existing technology and realizes high-performance refractory high-entropy alloy coating.

CN120465002BActive Publication Date: 2025-10-24XIAN TECH UNIV
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202510977433.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-16
Publication Date
2025-10-24
Estimated Expiration
2045-07-16

Smart Images

  • Figure CN120465002B_ABST
    Figure CN120465002B_ABST
Patent Text Reader

Abstract

The application discloses a method for improving quality of laser cladding refractory high-entropy alloy coating and belongs to the technical field of alloy coating. The refractory high-entropy alloy coating is composed of WMoTaNb and a hydride of Ti or V, and the refractory high-entropy alloy coating is a single BCC phase and is prepared by adopting a coaxial powder feeding laser cladding method. The laser cladding refractory high-entropy alloy coating prepared by introducing a method (solid solution strengthening + in-situ deoxidization) has excellent wear resistance and high-temperature oxidation resistance, and the additional powder improves the quality and performance of the refractory high-entropy alloy coating, so that the microhardness of the cross section of the refractory high-entropy alloy coating is up to 674.52 HV 0.2 . The coating can be applied to the fields of aerospace, nuclear reactors and the like.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • A refractory high-entropy alloy coating and its preparation method

    CN114032544B

  • Refractory high-entropy alloy composite coating as well as preparation method and application thereof

    CN114752931A

  • Refractory high-entropy alloy powder and refractory high-entropy alloy coating

    CN118086753A

  • Preparation process of refractory high-entropy alloy coating resistant to high-temperature friction and wear

    CN114657550A