Welded joint and automobile member
US-2024093708-A1 · Mar 21, 2024 · US
Magnesium-based alloy powder and magnesium-based alloy molded article
US9702028B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9702028-B2 |
| Application number | US-201414191823-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2014 |
| Priority date | Feb 28, 2013 |
| Publication date | Jul 11, 2017 |
| Grant date | Jul 11, 2017 |
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Abstract
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A magnesium-based alloy powder is made of a magnesium-based alloy that contains 0.2 mass % to 5 mass % of calcium, wherein the magnesium-based alloy powder has an average particle diameter of 100 μm to 1,500 μm, wherein the magnesium-based alloy powder has a particle average aspect ratio of 0.5 to 1, wherein the magnesium-based alloy powder has an apparent density of 0.2 g/cm 3 to 1.2 g/cm 3 , and wherein the mean value of hardness variation index values obtained by dividing the difference of the maximum value and the minimum value of micro Vickers hardnesses taken at 10 measurement points in a particle cross section by the maximum value is 0.3 or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A magnesium-based alloy powder comprising a magnesium-based alloy that contains 0.2 mass % to 5 mass % of calcium, and contains nickel and cerium, wherein an amount of each of the nickel and cerium is in the range of 0.1 to 5 mass %, wherein the magnesium-based alloy powder has an average particle diameter of 100 μm to 1,500 μm, wherein the magnesium-based alloy powder has a particle average aspect ratio of 0.5 to 1, wherein the magnesium-based alloy powder has an apparent density of 0.2 g/cm 3 to 1.2 g/cm 3 , wherein a concentration of the calcium on a surface of the particle is two times or more greater than a concentration of the calcium inside the particle in terms of mass ratio, and wherein the mean value of hardness variation index values obtained by dividing the difference of the maximum value and the minimum value of micro Vickers hardnesses taken at 10 measurement points in a particle cross section by the maximum value is 0.3 or less. 2. The magnesium-based alloy powder according to claim 1 , wherein the calcium segregates on a surface of each particle of the magnesium-based alloy powder. 3. The magnesium-based alloy powder according to claim 1 , wherein the magnesium-based alloy further comprises 2.5 mass % to 12 mass % of aluminum. 4. The magnesium-based alloy powder according to claim 1 , wherein the average dendrite arm spacing (DAS) in a crystal structure of the magnesium-based alloy powder is 0.05 μm to 5 μm. 5. The magnesium-based alloy powder according to claim 1 , wherein the magnesium-based alloy powder is produced by using high-speed rotary water jet atomization.
Assignees
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Classifications
casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control · CPC title
by water · CPC title
combination of methods · CPC title
Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating · CPC title
with water · CPC title
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- What does patent US9702028B2 cover?
- A magnesium-based alloy powder is made of a magnesium-based alloy that contains 0.2 mass % to 5 mass % of calcium, wherein the magnesium-based alloy powder has an average particle diameter of 100 μm to 1,500 μm, wherein the magnesium-based alloy powder has a particle average aspect ratio of 0.5 to 1, wherein the magnesium-based alloy powder has an apparent density of 0.2 g/cm 3 to 1.2 g/cm 3 ,…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification C22C23/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 11 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).