Cr, ni, mo and co alloy for use in medical devices
US-2017175235-A1 · Jun 22, 2017 · US
Alloy and a method of preparing the same
US2022018000A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022018000-A1 |
| Application number | US-202117359455-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 25, 2021 |
| Priority date | Jun 26, 2020 |
| Publication date | Jan 20, 2022 |
| Grant date | — |
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Abstract
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A novel medium entropy alloy having the chemical formula Mo x CrNiCo (atomic %) where (x ranges from ˜0.4 to ˜1.0).
First claim
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1 . An alloy consisting of four transition metal elements, wherein the plurality of transition metal elements are arranged in a dual-phase structure; the dual phase structure comprising a face centre cubic (fcc) phase and a sigma phase. 2 . An alloy as claimed in claim 1 , wherein the four transition metal elements are: molybdenum, chromium, nickel and cobalt. 3 . An alloy as claimed in claim 2 , wherein the alloy has a chemical formula of Mo x CrNiCo, with x=0.4 to 1.0. 4 . An alloy as claimed in claim 2 , wherein the sigma phase is the minority phase volumetrically and the fcc phase is the majority phase volumetrically; the signal phase forming a network around parcels of fcc phase 5 . An alloy as claimed in claim 4 , wherein the alloy has a chemical formula of Mo x CrNiCo, with x=0.6. 6 . A method of preparing the alloy of the chemical formula Mo x CrNiCo, with x=0.4 to 1.0, comprising the steps of: preparing an alloy composition by arc melting raw materials comprising four or more transition metal elements; heating the molten alloy to a temperature to precipitate a dual phase consisting of a sigma phase and an fcc phase according to the temperature and Mo range as shown in the phase diagram: 7 . A method of preparing the alloy of the chemical formula Mo x CrNiCo, with x=0.4 to 1.0 as claimed in claim 6 , wherein the arc melting is performed for multiple times under a Ti-gettered argon atmosphere. 8 . A method of preparing the alloy of the chemical formula Mo x CrNiCo, with x=0.6 as claimed in claim 6 , wherein heating the molten alloy to between 750 degrees Celsius and 1350 degrees Celsius; quick quenching the molten alloy from above 750 degrees Celsius.
Assignees
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Classifications
with use of an inert protective material including the use of an inert gas · CPC title
Arc remelting · CPC title
Refining by applying a vacuum · CPC title
- C22C30/00Primary
Alloys containing less than 50% by weight of each constituent · CPC title
Crystalline structure · CPC title
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- What does patent US2022018000A1 cover?
- A novel medium entropy alloy having the chemical formula Mo x CrNiCo (atomic %) where (x ranges from ˜0.4 to ˜1.0).
- Who is the assignee on this patent?
- Univ City Hong Kong
- What technology area does this patent fall under?
- Primary CPC classification C22C30/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 20 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).