Ultra-fine crystal gradient alloy with rich-cobalt surface and preparation method thereof
A cemented carbide, ultra-fine grain technology, applied in the field of cemented carbide manufacturing
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] The ultra-fine-grain gradient cemented carbide with cobalt-rich surface of the present invention has the following components by mass percentage: 80%WC, 5%Ti(C,N), 14%Co, 0.3%VC, 0.7%Cr 3 C 2 , the metallographic structure is based on WC and cubic phase carbonitride as the core hard phase, cobalt as the binder phase to form a 15 μm thick cobalt-rich gradient layer on the surface, in which the hard phase and WC grains in the gradient layer The average size is 0.32 μm, the cobalt content in the cobalt-rich gradient layer on the surface is 1.4 times the nominal cobalt content of the cemented carbide, and the cobalt-rich gradient layer on the surface does not contain cubic carbonitride.
[0029] The preparation method of the superfine-grained gradient cemented carbide with cobalt-rich surface of the present invention is carried out according to the following steps:
[0030] (1) The cemented carbide raw material with added carbonitride is used for batching, and its composit...
Embodiment 2
[0034] The ultra-fine-grain gradient cemented carbide with cobalt-rich surface of the present invention has the following components by mass percentage: 77.2%WC, 6%Ti(C,N), 15%Co, 0.5%VC, 0.8%Cr 3 C 2 , 0.5% carbon black, the metallographic structure is based on WC and cubic phase carbonitride as the core hard phase, and cobalt is used as the binder phase to form a 20 μm thick cobalt-rich gradient layer on the surface, in which the hard phase and gradient layer The average size of the WC grains in the medium is 0.33 μm, and the cobalt content in the cobalt-rich gradient layer on the surface is 1.3 times the nominal cobalt content of the cemented carbide, and the cobalt-rich gradient layer on the surface does not contain cubic carbonitrides.
[0035] The preparation method of the superfine-grained gradient cemented carbide with cobalt-rich surface of the present invention is carried out according to the following steps:
[0036] (1) Cemented carbide raw materials with added ca...
Embodiment 3
[0040] The cobalt-rich ultrafine-grain gradient cemented carbide of the present invention has a composition by mass percentage of: 91.5%WC, 2%Ti(C,N), 6%Co, 0.2%Cr 3 C 2 , 0.3% carbon black, the metallographic structure is based on WC and cubic phase carbonitride as the core hard phase, and cobalt is used as the binder phase to form a 40 μm thick cobalt-rich gradient layer on the surface, in which the hard phase and the gradient layer The average size of the WC grains in the medium is 0.28 μm, and the cobalt content in the cobalt-rich gradient layer on the surface is 1.5 times the nominal cobalt content of the cemented carbide, and the cobalt-rich gradient layer on the surface does not contain cubic carbonitrides.
[0041] The preparation method of the superfine-grained gradient cemented carbide with cobalt-rich surface of the present invention is carried out according to the following steps:
[0042] (1) The cemented carbide raw material with added carbonitride is used for b...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
particle size | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com