Rotor assembly for in-machine grinding of shroud member and methods of using the same
US-2021123350-A1 · Apr 29, 2021 · US
Abrasive material, a method for manufacturing an abrasive material and a substrate coated with an abrasive material
US2023160316A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023160316-A1 |
| Application number | US-202117917489-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 15, 2021 |
| Priority date | Apr 24, 2020 |
| Publication date | May 25, 2023 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
The invention relates to an abrasive material including a nickel aluminide intermetallic phase, in particular a beta nickel aluminide (β-NiAl) intermetallic phase with a Laves phase, as a matrix for abrasive particles. It also relates to a method manufacturing an abrasive material and a blade in a turbomachinery with an abrasive material.
First claim
Opening claim text (preview).
1 . Abrasive material comprising a nickel aluminide intermetallic phase, in particular a beta nickel aluminide (β-NiAl) intermetallic phase with a Laves phase, as a matrix for abrasive particles. 2 . Abrasive material according to claim 1 , wherein the Laves phase has a C14 hexagonal phase structure. 3 . Abrasive material according to claim 1 , wherein the Laves phase comprises Ta, in particular in the form of τ 1 NiAlTa. 4 . Abrasive material according to claim 3 , wherein the overall content of Ta in the material is between 1 at. % and 20 at. %, in particular between 1, 5 to 3 at. % or 6 and 9 at. %. 5 . Abrasive material according to claim 3 , wherein a quaternary addition to the NiAlTa alloy is Cr, Mo, Nb, and/or V. 6 . Abrasive material according to claim 5 , wherein the NiAlTa+Beta-NiAl phases comprises up to 7.5 at. % Cr. 7 . Abrasive material according to claim 1 , wherein the abrasive particles comprise cubic boron nitride, silicon nitride, silicon carbide, zirconia and/or alumina-based oxides. 8 . Abrasive material according to claim 1 , wherein the abrasive particle is coated, in particular with Ti and/or Ni. 9 . Abrasive material according to claim 1 , wherein the abrasive particles are vertically distributed in the matrix, in particular in the form of layers. 10 . Abrasive Material according to claim 1 , wherein the abrasive particles are stacked in a direction essentially perpendicular to the surface. 11 . Method for manufacturing an abrasive material according to claim 1 , wherein the matrix and the abrasive particles are deposited on a substrate in the same process step or wherein the matrix is deposited in a first process step, the abrasive particles are deposited in a subsequent second process step. 12 . Method according to claim 11 , wherein the substrate is heated or pre-heated for the deposition of the matrix and/or the abrasive particles. 13 . Method according to claim 11 , wherein the heating is effected by induction or high temperature lamps. 14 . Substrate, in particular a blade in a turbomachine with a tip coated with an abrasive material of at least claim 1 .
Assignees
Inventors
Classifications
- F01D11/122Primary
with erodable or abradable material (blades having cutting or grinding tips F01D5/20) · CPC title
Protective coatings for blades · CPC title
related to the tip of a rotor blade · CPC title
Coating · CPC title
Efficient propulsion technologies, e.g. for aircraft · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2023160316A1 cover?
- The invention relates to an abrasive material including a nickel aluminide intermetallic phase, in particular a beta nickel aluminide (β-NiAl) intermetallic phase with a Laves phase, as a matrix for abrasive particles. It also relates to a method manufacturing an abrasive material and a blade in a turbomachinery with an abrasive material.
- Who is the assignee on this patent?
- Rolls Royce Deutschland Ltd & Co Kg, Rolls Royce Plc
- What technology area does this patent fall under?
- Primary CPC classification F01D11/122. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu May 25 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).