Method for forming a nitrogenation barrier and machine formed using a body having the nitrogenation barrier
US-2018183279-A1 · Jun 28, 2018 · US
Multi-phase magnetic component and method of forming
US10229776B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10229776-B2 |
| Application number | US-201615078439-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2016 |
| Priority date | Oct 31, 2013 |
| Publication date | Mar 12, 2019 |
| Grant date | Mar 12, 2019 |
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Abstract
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A magnetic component including first and second regions, and a method of varying the magnetization values in different regions of the magnetic component are disclosed. The first and the second regions are characterized by a nitrogen content that is different from each other. At least one of the first region and the second region is partially-magnetic and has a nitrogen content in a range from about 0.1 weight % to about 0.4 weight % of that region. A concentration of carbon, if present, of both the first and second regions is less than about 0.05 weight % of the respective regions.
First claim
Opening claim text (preview).
The invention claimed is: 1. A magnetic component, comprising: a first region, a second region, and a third region, wherein the first region comprises a magnetic phase, the second region comprises a saturation magnetization in a region from about 0.01 Tesla to about 1.5 Tesla, and the third region comprises a non-magnetic phase; the first region has a nitrogen content less than 0.1 weight % of the first region, the second region has a nitrogen content in a range from about 0.1 weight % to about 0.4 weight % of the second region, and the third region has a nitrogen content greater than 0.4 weight % of the third region; and a concentration of carbon in the first, second, and third regions is less than 0.05 weight % of the respective regions. 2. The magnetic component of claim 1 , wherein the first region, the second region, and the third region comprise an iron-based alloy. 3. The magnetic component of claim 2 , wherein the iron-based alloy further comprises chromium, manganese, or a combination thereof. 4. The magnetic component of claim 1 , wherein the magnetic component is in a monolithic form. 5. An electric machine, comprising the magnetic component of claim 1 .
Assignees
Inventors
Classifications
for manufacturing permanent magnets · CPC title
Alloys characterised by their composition {(treatment thereof for enhancing their electromagnetic properties C21D8/12)} · CPC title
with more than 1.5% by weight of manganese · CPC title
with diffusion of elements, e.g. decarburising, nitriding · CPC title
- H01F7/021Primary
Construction of PM (H01F7/0278 takes precedence; PM compositions H01F1/032) · CPC title
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- What does patent US10229776B2 cover?
- A magnetic component including first and second regions, and a method of varying the magnetization values in different regions of the magnetic component are disclosed. The first and the second regions are characterized by a nitrogen content that is different from each other. At least one of the first region and the second region is partially-magnetic and has a nitrogen content in a range from a…
- Who is the assignee on this patent?
- Gen Electric
- What technology area does this patent fall under?
- Primary CPC classification H01F7/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 12 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).