US 10,787,725 B2 · High entropy alloy article, method for manufacturing same, and product using same

Abstract

An object of the invention is to provide: an HEA article that has excellent homogeneity in the alloy composition and microstructure as well as significant shape controllability, using an HEA with significant mechanical strength and high corrosion resistance; a method for manufacturing the HEA article; and a product using the HEA article. There is provided an HEA article comprising: Co, Cr, Fe, Ni, and Ti elements, each element in content of 5 to 35 atomic %; more than 0 atomic % to 8 atomic % of Mo %; and remainder substances of unavoidable impurities.

Claims18

Dependent claims

A high entropy alloy article comprising

Co, Cr, Fe, Ni, and Ti elements, each element in content of 5 atomic percent to 35 atomic percent,
more than 0 atomic percent to 8 atomic percent of Mo, and
remainder substances of unavoidable impurities, wherein
an intermetallic compound phase of acicular crystals is dispersedly precipitated in the matrix phase crystals of the high entropy alloy article.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/781,963Filed 8 Nov 2016

Priority

JP 2015-24124810 Dec 2015

Published

US 2018/0363104 A120 Dec 2018

Granted

29 Sep 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

C22C 30/00
Alloys containing less than 50% by weight of each constituent
B22F 1/00
Metallic powder
B22F 1/05
Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties: metallic powder characterised by the size or…
B22F 3/105
Sintering only: by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding

High entropy alloy article, method for manufacturing same, and product using same

Life of this patent

High entropy alloy article, method for manufacturing same, and product using same

Life of this patent

Abstract

Claims18