US 2026/0176768 A1 · METHOD FOR PREPARING IN-SITU SYNTHESIZED Al2O3 CERAMIC-REINFORCED HIGH-ENTROPY ALLOY (HEA) COATING DOPED WITH TRACE AMOUNT OF B THROUGH LASER CLADDING

Abstract

Disclosed is a method for preparing an in-situ synthesized Al2O3 ceramic-reinforced high-entropy alloy (HEA) coating doped with a trace amount of boron (B) through laser cladding. The method includes: subjecting an Al powder, a Cr powder, a Fe powder, a Ti powder, a V powder, and a B powder to mixing thoroughly in a molar ratio of 1:1:1:1:1:0-0.1 (not zero) to obtain a laser cladding powder; and preplacing the laser cladding powder on a surface of a titanium alloy substrate, and conducting laser cladding to obtain the in-situ synthesized Al2O3 ceramic-reinforced HEA coating doped with the trace amount of B.

Claims10

Dependent claims

A method for preparing an in-situ synthesized Al2O3 ceramic-reinforced high-entropy alloy (HEA) coating doped with a trace amount of boron (B) through laser cladding, comprising the following steps:

subjecting an Al powder, a Cr powder, a Fe powder, a Ti powder, a V powder, and a B powder to mixing in a molar ratio of 1:1:1:1:1:0-0.1 to obtain a laser cladding powder;
and
preplacing the laser cladding powder on a surface of a titanium alloy substrate, and conducting laser cladding to obtain the in-situ synthesized Al2O3 ceramic-reinforced HEA coating doped with the trace amount of B,
wherein an amount of the B powder is not zero.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

19/428,736Filed 22 Dec 2025

Priority

CN 202411924447.825 Dec 2024

Published

25 Jun 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

C22C 1/1084
Alloys containing non-metals: by mechanical alloying
C23C 24/103
With intermediate formation of a liquid phase in the layer: coating with metallic material, i.e. metals or metal alloys, optionally comprising…
B22F 7/08
Of composite workpieces or articles from parts, e.g. to form tipped tools: with one or more parts not made from powder
B22F 10/25
Direct sintering or melting: direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]

METHOD FOR PREPARING IN-SITU SYNTHESIZED Al2O3 CERAMIC-REINFORCED HIGH-ENTROPY ALLOY (HEA) COATING DOPED WITH TRACE AMOUNT OF B THROUGH LASER CLADDING

Life of this patent

METHOD FOR PREPARING IN-SITU SYNTHESIZED Al2O3 CERAMIC-REINFORCED HIGH-ENTROPY ALLOY (HEA) COATING DOPED WITH TRACE AMOUNT OF B THROUGH LASER CLADDING

Life of this patent

Abstract

Claims10