Mechanical properties and fracture toughness of Ti--6Al--2Sn--4Zr--2Mo

Technical Report · Tue May 01 04:00:00 EDT 1973

OSTI ID:4334893

Hickey, Jr, C F; DeSisto, T S

Data were obtained for Ti--6Al--2Sn--4Zr-2Mo in two heattreated conditions. Solution temperatures of 1650 and 1790 deg F followed by an aging treatment at 1100 deg F were selected. Variables considered include specimen location and orientation, plus notch orientation for the toughness specimens. Light microscopy, x-ray, and futigue crack growth patterns were also studied and correlated with the above parameters. The most significant finding in this investigation was the enhancement in toughness parameter data with increased heat treatment temperature. Impact and precracked Charpy (W/A) values were approximately doubled and plane-strain fracture toughness values were increased roughly 17%. (auth)

• Research Organization: Army Materials and Mechanics Research Center, Watertown, Mass. (USA)
• NSA Number: NSA-29-024700
• OSTI ID: 4334893
• Report Number(s): AD--766681-1; AMMRC-TR--73-23
• Country of Publication: United States
• Language: English

Related Subjects

*ALUMINIUM ALLOYS-- FRACTURE PROPERTIES
*MOLYBDENUM ALLOYS-- FRACTURE PROPERTIES
*TIN ALLOYS-- FRACTURE PROPERTIES
*TITANIUM BASE ALLOYS-- FRACTURE PROPERTIES
*ZIRCONIUM ALLOYS-- FRACTURE PROPERTIES
HEAT TREATMENTS
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies