Influence of the method of protection on the cyclic strength and character of fracture of titanium alloy weld joints

Journal Article · Tue Oct 01 04:00:00 EDT 1985 · Strength Mater. (Engl. Transl.); (United States)

OSTI ID:5975646

Mozeiko, B Y; Yakovleva, T Y

In the argon-arc welding of titanium assemblies of complex spatial configuration done outside controlled atmosphere chambers it is often difficult to provide reliable protection of the root side of the joint with known gas protection equipment. The necessary reliability in protection is provided by a special, technologically stable two-layer coating applied to the reverse side of the edges being welded. The inner forming layer of the coating is a powder mixture of halides of alkali and alkaline-earth metals thinned to a pasty state with an ethanol-acetone solvent. The outer reinforcing layer is a solution of BMK5 acrylic resin in ethanol-acetone solvent. For a comparative evaluation of the cyclic strength of weld joints obtained with two methods of protection of the reverse side of the joint (protective coating and highest purity argon), two lots of specimens were tested in alternating-sign symmetric bending. Flat weld specimens of 2-mm-thick VT20 titanium sheet were tested.

• Research Organization: Institute of Strength Problems, Academy of Sciences of the Ukranian SSR, Kiev
• OSTI ID: 5975646
• Journal Information: Strength Mater. (Engl. Transl.); (United States), Journal Name: Strength Mater. (Engl. Transl.); (United States) Vol. 17:2; ISSN SMTLB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ACETONE
ALCOHOLS
ALKALI METALS
ALKALINE EARTH METALS
ALLOYS
ARC WELDING
ARGON
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
COATINGS
COMPARATIVE EVALUATIONS
DEPOSITION
DESTRUCTIVE TESTING
ELEMENTS
ESTERS
ETHANOL
FABRICATION
FLUIDS
FRACTURE MECHANICS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
JOINING
JOINTS
KETONES
LAYERS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICS
METALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASMA ARC WELDING
POLYACRYLATES
POLYMERS
POLYVINYLS
POWDERS
PROTECTIVE COATINGS
RARE GASES
RESINS
SURFACE COATING
SYNTHESIS
TESTING
THERMAL CYCLING
TITANIUM ALLOYS
WELDED JOINTS
WELDING