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HEAT TREATMENT AND MECHANICAL PROPERTIES OF ALLOYS OF THE Ti-Mo-Al SYSTEM (in Russian)

Journal Article · · Metalloved. i Termichesk. Obrabotka Metal.
DOI:https://doi.org/10.1007/BF00816372· OSTI ID:4767385

Titanium alloys containing up to 9% of total Mo + Al in ratios of 3:1, 1:1, and 1:3 and binary Ti--Mo and Ti--Al alloys were prepared by remelting in a vacuum furnace. Mechanical tests carried out after 1-hour long annealing at 800 deg C indicated that an increase of the Al content results in an increase of the yield strength from 54 to 102 kg/mm/sup 2/ while the elongation is reduced to 9%; at the same time plasticity upon bending and toughness are reduced. Changes in the Mo content do affect this property. Measurements of the mechanical properties after quenching from 750, 800, and 850 deg C, followed by aging at 480 and 500 deg C for 4 and 16 hours showed a definite increase in the strength of alloys containing 2.5 to 3% Mo. Increasing the quenching temperature and lowering the aging temperature resulted in an increase of the yield strength and a slight reduction of the plasticity. Alloys containing 2.0to 3.5% Mo and 0 to 2.5 Al or 6to 8% Mo and up to 3% Al were found to possess the highest plasticity and could be satisfactorily strengthened by heat treatment up to strength of 140 to 160 kg/mm/sup 2/. (TTT)

Research Organization:
Originating Research Org. not identified
Sponsoring Organization:
USDOE
NSA Number:
NSA-16-030836
OSTI ID:
4767385
Journal Information:
Metalloved. i Termichesk. Obrabotka Metal., Journal Name: Metalloved. i Termichesk. Obrabotka Metal. Vol. Vol: No. 4
Country of Publication:
Country unknown/Code not available
Language:
Russian

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Related Subjects

ALUMINUM
ALUMINUM ALLOYS
ANNEALING
DUCTILITY
EFFICIENCY
FURNACES
HEAT TREATMENTS
HIGH TEMPERATURE
MATERIALS TESTING
MEASURED VALUES
MECHANICAL PROPERTIES
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MOLYBDENUM
MOLYBDENUM ALLOYS
PHASE DIAGRAMS
PREPARATION
QUENCHING
TEMPERATURE
TENSILE PROPERTIES
TITANIUM ALLOYS
VACUUM
VARIATIONS