Multilayer thin film for cutting tool and cutting tool including the same
US-2015337459-A1 · Nov 26, 2015 · US
Method for producing high stacking fault energy (SFE) metal films, foils, and coatings with high-density nanoscale twin boundaries
US10023977B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10023977-B2 |
| Application number | US-201314428538-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 17, 2013 |
| Priority date | Sep 17, 2012 |
| Publication date | Jul 17, 2018 |
| Grant date | Jul 17, 2018 |
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Abstract
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Materials, including metals such as bulk metals, specialty alloys, metallic films and coatings, are made up of many tiny single crystals, which may also be referred to as grains. The boundaries between crystals are called grain boundaries and govern properties such as mechanical strength, deformation, and electrical resistivity. These properties are affected by not only the number of grain boundaries formed, but also the density and orientation of those grain boundaries. Twin boundaries are a special type of grain boundary which have symmetrical “mirror image” structures and preserve favorable qualities of grain boundaries while suppressing unfavorable properties such as the initiation of cracks, inclusions, and other unwanted flaws. Some metals and alloys form twins more easily than others during processing. Metals with low stacking fault energy (SFE) such as austenitic stainless steel, copper (Cu), and silver (Ag) form twin boundaries more easily than metals with high SFE such as Magnesium (Mg) and Aluminum (Al).
First claim
Opening claim text (preview).
What is claimed is: 1. A high stacking fault energy metal coating comprising: a plurality of seed layers, wherein a first seed layer of the plurality of seed layers comprises a first material, wherein a second seed layer of the plurality of seed layers comprises a second material, wherein the first seed layer is deposited on a substrate, and wherein the second seed layer is deposited on the first seed layer; at least a first metal layer of a plurality of metal layers is deposite…
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Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
- C30B29/68Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C23C14/165Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US10023977B2 cover?
- Materials, including metals such as bulk metals, specialty alloys, metallic films and coatings, are made up of many tiny single crystals, which may also be referred to as grains. The boundaries between crystals are called grain boundaries and govern properties such as mechanical strength, deformation, and electrical resistivity. These properties are affected by not only the number of grain boun…
- Who is the assignee on this patent?
- Zhang Xinghang, Bufford Daniel, Wang Haiyan, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C30B29/68. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 17 2018 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).