Influence of rare-earth metals on the physicomechanical properties of steel in thermomechanical working

Journal Article · Wed Jul 01 04:00:00 EDT 1987 · Sov. Mater. Sci. (Engl. Transl.); (United States)

OSTI ID:6965471

Kotrechko, A A; Opal'chuk, A S; Kozyrskii, O I; Semenovskii, A A; Khrunik, R A; Katsov, K B; Kokotailo, I V

The authors study the stabilizing influence of rare-earth metals on the structural condition of thermomechanically worked steels. 45, 60, U8A, 50KhGA, and 70S2KhA steels were used for the investigation. The rare-earth metals used were lanthanum, cerium, and a mixture of rare-earth metals called mischmetal. Impact strength tests of Mesnager specimens at room temperature showed that the favorable influence of high-temperature thermomechanical working is strengthened with an increase in carbon content in the steel. Results are shown of investigations at sub-zero temperatures of Charpy specimens with an initiated fatigue crack. Rare-earth metal microadditions are shown to have a good influence on the structurally sensitive characteristics of the steel, the contact strength and the corrosion resistance. Rare-earth metals also retard the development of the recrystallization processes of the deformed austenite.

• Research Organization: G. V. Karpenko Physicomechanical Institute, Lvov (USSR)
• OSTI ID: 6965471
• Journal Information: Sov. Mater. Sci. (Engl. Transl.); (United States), Journal Name: Sov. Mater. Sci. (Engl. Transl.); (United States) Vol. 23:1; ISSN SOMSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
CERIUM
CERIUM ALLOYS
CERIUM BASE ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CRYSTAL DOPING
CRYSTAL STRUCTURE
DEFORMATION
ELEMENTS
FATIGUE
FRACTURE PROPERTIES
HEAT TREATMENTS
IMPACT STRENGTH
IRON ALLOYS
IRON BASE ALLOYS
LANTHANUM
LANTHANUM ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
MISCH METAL
RARE EARTH ALLOYS
RARE EARTHS
STABILIZATION
STAINLESS STEELS
STEELS
TESTING