Ti-w-b coating, method for producing the same, and use thereof

By introducing highly ionized W ions into the TiB2 coating to form a TiBx/WBx nanocomposite structure, the problems of high residual stress, poor toughness, and lack of wear resistance at high temperatures in the TiB2 coating are solved. This results in a Ti-WB coating with high hardness, high toughness, and low coefficient of friction, thus improving the cutting performance of the cutting tool.

CN116815120BActive Publication Date: 2026-05-12XIAMEN GOLDEN EGRET SPECIAL ALLOY +2
0 Cites 0 Cited by

Patent Information

Application Number
CN202310794267.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-30
Publication Date
2026-05-12
Estimated Expiration
2043-06-30

AI Technical Summary

Technical Problem

Existing TiB2 coatings suffer from high residual stress, poor toughness, and poor wear resistance at high temperatures. Furthermore, the lubricating oxides are easily scratched, limiting their application in high-speed machining.

Method used

By introducing highly ionized W ions to form a TiBx/WBx nanocomposite structure, the stoichiometry and microstructure of the coating are optimized, the atomic ratio of B/Ti is reduced, and combined with high-power pulsed magnetron sputtering technology, low-temperature deposition and interfacial mixing are achieved to form a Ti-WB coating with high hardness, high toughness and high-temperature self-lubrication.

Benefits of technology

It improves the hardness and toughness of the coating, reduces the coefficient of friction, expands the high-temperature self-lubricating temperature range, enhances wear resistance, and extends tool life.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present application relates to a kind of Ti-W-B coating and its preparation method and application, the Ti-W-B coating is nanostructured coating, the molecular structure expression of the Ti-W-B coating is Ti 1‑x W x B y Wherein, x=0.06-0.55, y=1.8-3.5;The preparation method includes: under inert atmosphere, using TiB2 Target material is magnetron sputtering to substrate, while using W target material is high-power pulse magnetron sputtering to substrate, is deposited on the surface of substrate and obtains Ti-W-B coating.The Ti-W-B coating and its preparation method provided by the present application can form TiB x / WB x Nano composite structure by introducing high ionization W ion, can improve the hardness, toughness and lubricity of coating, can be widely applied in metal surface treatment or metal processing.
Need to check novelty before this filing date? Find Prior Art