TITANIUM ALLOY COMPLEX POWDER CONTAINING COPPER POWDER, CHROMIUM POWDER OR IRON POWDER, TITANIUM ALLOY MATERIAL CONSISTING OF THIS POWDER, AND PROCESS FOR PRODUCTION THEREOF

• US 20130071284A1
• Filed: 05/31/2011
• Published: 03/21/2013
• Est. Priority Date: 05/31/2010
• Status: Abandoned Application

• Current Assignee: TOHO Titanium Company Limited (ENEOS Holdings, Inc.)
• Original Assignee: TOHO Titanium Company Limited (ENEOS Holdings, Inc.)
• Inventors: Kano, Osamu, Takatori, Hideo, Sugawara, Satoshi
• Application Number:
  US13/701,159
• Publication Number:
  US 20130071284A1
• Time in Patent Office: Days
• US Class Current: 419/30
• CPC Class Codes: B22F 1/09 Mixtures of metallic powders
• CPC Class Codes: B22F 2998/10 Processes characterised by the sequence of their steps
• CPC Class Codes: B22F 3/04 by applying fluid pressure , e.g. by cold isostatic pressing [CIP]
• CPC Class Codes: B22F 3/15 Hot isostatic pressing
• CPC Class Codes: B22F 8/00 Manufacture of articles from scrap or waste metal particles
• CPC Class Codes: B22F 9/023 Hydrogen absorption
• CPC Class Codes: B22F 9/04 starting from solid material, e.g. by crushing, grinding or milling C22C1/1084 takes precedence; crushing, grinding or milling, in general, see the relevant subclasses, e.g. B02C
• CPC Class Codes: C22C 1/0458 Alloys based on titanium, zirconium or hafnium
• CPC Class Codes: C22C 14/00 Alloys based on titanium
• CPC Class Codes: Y02P 10/20 Recycling
• CPC Class Codes: Y02W 30/50 Reuse, recycling or recovery technologies

Abstract

A process for production of titanium alloy material has steps of hydrogenating titanium alloy material to generate hydrogenated titanium alloy; grinding, sifting and dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder; adding at least one of copper powder, chromium powder or iron powder to obtain titanium alloy complex powder; consolidating the titanium alloy complex powder by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule. In addition, titanium alloy complex powder and titanium alloy material produced by the process are provided.

Claims

1. Titanium alloy complex powder comprising:

titanium alloy powder containing aluminum and vanadium, or containing at least one kind selected from zirconium, tin, molybdenum, iron and chromium in addition to aluminum and vanadium, and

at least one kind of metallic powder selected from copper powder, chromium powder and iron powder mixed with the titanium alloy powder,

wherein the titanium alloy powder is made from hydrogenating titanium alloy as a raw material to generate hydrogenated titanium alloy powder and by dehydrogenating this hydrogenated titanium alloy powder, and

wherein the amount of the metallic powder ranges from 1 to 10 wt % in case that one metallic powder is added, and the amount of the metallic powder added ranges from 1 to 20 wt % in case that two or more metallic powders are mixed.

3. The titanium alloy complex powder according to claim 1, wherein average particle size of the copper powder, chromium powder or iron powder ranges from 1 to 300 μ

m.

5. A process for production of titanium alloy material, comprising steps of:

consolidating the titanium alloy complex powder according to claim 1 by CIP process and subsequent HIP process, or by HIP process after filling the titanium alloy complex powder into a capsule.

6. A titanium alloy material produced by the process according to claim 5.

7. The titanium alloy material according to claim 6, wherein the density of the titanium alloy material is not less than 99% to the theoretical one.

8. A process for production of titanium alloy material, comprising steps of:

consolidating the titanium alloy complex powder according to claim 3 by CIP process and subsequent HIP process, or by HIP process after filling into a capsule.

9. A titanium alloy material produced by the process according to claim 8.

10. The titanium alloy material according to claim 9, wherein the density of the titanium alloy material is not less than 99% of the theoretical one.

2. (canceled)

4. A process for production of titanium alloy complex powder, comprising steps of:

hydrogenating titanium alloy raw material to generate hydrogenated titanium alloy powder,

dehydrogenating the hydrogenated titanium alloy powder to generate titanium alloy powder, and

mixing at least one of copper powder, chromium powder or iron powder with the titanium alloy powder.