Fabrication and properties of heavy section extrusions of Ti--6A1--6V--2Sn and Ti--8Mo--8V--2Fe--3Al alloys

Journal Article · Thu Sep 01 04:00:00 EDT 1977 · Metall. Trans., B; (United States)

DOI:https://doi.org/10.1007/BF02696923· OSTI ID:6491263

Chait, R ^[1]; Stead, C

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1. Army Materials and Mechanics Research Center, Watertown, MA

Fabrication is described of heavy section titanium alloys Ti--8Mo--8V--2Fe--3Al (Ti-8823) and Ti--6Al--6V--2Sn (Ti-662). The technique utilized to achieve 84 percent reduction during the extrusion of heavy section cylindrical hollows is given. The response to subsequent aging of both alloys is described in terms of the effect on important mechanical properties such as yield and ultimate tensile strength, ductility and fracture toughness. For the Ti-8823 alloy extruded in heavy section, it is shown that the optimum heat treatment consists of aging directly after hot working rather than the more common solution treatment with age cycle. With the former heat treatment, uniform through the thickness mechanical properties are obtained. Uniform mechanical properties are also obtained through the section of the Ti-662 extrusion with a solutionizing and overaging heat treatment.

• OSTI ID: 6491263
• Journal Information: Metall. Trans., B; (United States), Journal Name: Metall. Trans., B; (United States) Vol. 8:3; ISSN MTTBC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DUCTILITY
EXTRUSION
FABRICATION
HEAT TREATMENTS
HOT WORKING
IRON ALLOYS
MATERIALS WORKING
MECHANICAL PROPERTIES
MICROSTRUCTURE
MOLYBDENUM ALLOYS
REDUCTION
TENSILE PROPERTIES
TIN ALLOYS
TITANIUM ALLOYS
VANADIUM ALLOYS