Improved manufacturing method for producing high integrity, more reliable titanium forgings. Final report
This program was aimed at the determination of the effect of certain macro and microstructural variations on the mechanical properties of Ti--6Al--4V, Ti--6Al--6V--2Sn, and Ti--6Al--2Sn--4Zr--6Mo forgings. Smooth and notched tensile, smooth and notched high cycle fatigue, low cycle fatigue, and fracture toughness properties were established for each structure. The microstructures of all conditions as observed by optical microscopy are presented and described. Fracture patterns of the fracture toughness bars are characterized by scanning electron micrographs. A mechanical property rating system which may be used to compare the various conditions evaluated is described. A third task involved the effect of certain metallurgical flaws on the mechanical properties of the Ti--6Al--4V and Ti--6Al--6V--2Sn alloys.
- Research Organization:
- Wyman-Gordon Co., Worcester, Mass. (USA)
- OSTI ID:
- 7355407
- Report Number(s):
- AD/A-007077
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
CRYSTAL STRUCTURE
FABRICATION
FORGING
FRACTURE PROPERTIES
MATERIALS WORKING
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
TIN ALLOYS
TITANIUM ALLOYS
VANADIUM ALLOYS
ZINC ALLOYS
ZIRCONIUM ALLOYS