Accession Number:

ADD014283

Title:

Method of Marking Titanium Alloy Articles Having Distinct Microstructural Regions Corresponding to High Creep and Fatigue Resistance.

Descriptive Note:

Patent, Filed 8 Nov 88, patented 25 Jul 89,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

• Eylon, Daniel
• Froes, Francis H.

Report Date:

1989-07-25

Pagination or Media Count:

7.0

Abstract:

A method for producing an integral titanium alloy article having at least two regions, each region having a distinct microstructure is provided. The method comprises heat treating one or more selected regions of the article at a temperature greater than the beta-transus temperature of the regions, while simultaneously heat treating the remaining regions of the article at a temperature below the beta-transus temperature of the remaining regions. Pat-148-20.3. jes

Descriptors:

• *TITANIUM ALLOYS
• CREEP
• FATIGUE(MECHANICS)
• MICROSTRUCTURE
• REGIONS
• RESISTANCE
• CREEP
• FATIGUE(MECHANICS)
• MICROSTRUCTURE
• REGIONS
• RESISTANCE
• TITANIUM ALLOYS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE