RESEARCH ON THE EFFECTS OF STRESS, STRAIN, AND TEMPERATURE ON THE EUTECTOID DECOMPOSITION OF TITANIUM ALLOYS. Period covered February 1, 1956 to May 30, 1957

Technical Report · Mon May 27 00:00:00 EDT 1957

OSTI ID:4341113

Goldenstein, A W; Metcalfe, A G; Rostoker, W

Three Ti--Cr alloys were forged in the alpha - BETA range to give six systems with cortrolled amounts of each phase. The isothermal transformation at 400, 500, and 6OO deg C of each of these systems was followed by resistivity, x- ray diffraction, elastic modulus measurements, and metallography. The reactions occurring in the transformation were identified where possible. This transformation study was repeated under a stress which produced 1% creep in 1OOO hr. An acceleration of four to seven times in the rate of transformation occurred under tbe action of this stress. Complete tensile test data were obtained at all stages of the transformation and plotted on the T-T-T dingrams. These reveal that the formations of omega and TiCr/sub 2/ are the embrittling reactions. The eutectoid temperature in the Ti-- Cr system was determined to be 670 deg plus or minus 5 deg C. (auth)

• Research Organization: Illinois Inst. of Tech. , Chicago. Armour Research Foundation
• DOE Contract Number: AF33(616)-3394
• NSA Number: NSA-12-003699
• OSTI ID: 4341113
• Report Number(s): WADC-TR-57-360; AD-142142
• Resource Relation: Other Information: Project title: METALLIC MATERIALS. Task title: TITANIUM METAL AND ALLOYS. Orig. Receipt Date: 31-DEC-58
• Country of Publication: United States
• Language: English

Related Subjects

MINERALOGY, METALLURGY, AND CERAMICS
BRITTLENESS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CREEP
DEFORMATION
DIFFRACTION
ELASTICITY
ELECTRIC CONDUCTIVITY
EUTECTICS
FORGING
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
MATERIALS TESTING
MEASURED VALUES
METALLOGRAPHY
PHASE DIAGRAMS
RADIATIONS
REACTION KINETICS
STRESSES
TEMPERATURE
TENSILE PROPERTIES
TITANIUM ALLOYS