Strain hardening and structural changes in molybdenum in tension with the application of ultrasonic vibrations

Journal Article · Fri Nov 01 04:00:00 EST 1985 · Strength Mater. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01755923· OSTI ID:5908736

Ivashchenko, V V; Kozlov, A V; Moiseev, V F; Mordyuk, N S; Pechkovskii, E P

This paper investigates the influence of the amplitude of the applied ultrasonic vibrations on the rules of strain hardening and their interrelationship with the structural changes in molybdenum in tension. The investigated molybdenum was rolled at 950 degrees C into 1 mm thick sheet and annealed at 950 degrees C for 1 hours. In the tension of molybdenum with the application of ultrasonic vibrations, the general rules of strain hardening are observed, but under the influence of the ultrasonic vibration, the stage of parabolic hardening with a tangle type dislocation structure is significantly broadened within the studied range of amplitudes. A later transition to the stage of formatin of the dislocation cell structure is noted.

• Research Organization: Institute of Provlems of Material Sciences, Academy of Sciences of the Ukranian SSR
• OSTI ID: 5908736
• Journal Information: Strength Mater. (Engl. Transl.); (United States), Journal Name: Strength Mater. (Engl. Transl.); (United States) Vol. 17:3; ISSN SMTLB
• 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
ANNEALING
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALLOGRAPHY
DISLOCATIONS
ELEMENTS
FABRICATION
HARDENING
HEAT TREATMENTS
HOT WORKING
LINE DEFECTS
MATERIALS WORKING
METALS
MOLYBDENUM
PHASE TRANSFORMATIONS
ROLLING
SOUND WAVES
STRAIN HARDENING
TRANSITION ELEMENTS
ULTRASONIC WAVES
VERY HIGH TEMPERATURE