Correlation of characteristics for steel containing nonmetallic inclusions

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Ind. Lab. (Engl. Transl.); (United States)

OSTI ID:6965588

Shtremel', M A; Fadeev, Yu I; Maksimova, O V; Chernukha, L G; Anisimova, N I

The quality of steel is largely determined by nonmetallic inclusions (NI). Improvement of quantitative methods of testing for NI is part of quality evaluation. Metallographic methods of visual evaluation in accordance with GOST 1778-70 are very laborious and are thus being replaced by automatic ones based on computerized image processors (CIP) such as instruments of the Quantimet type and by methods of isolating and analyzing NI. The authors have examined the relationship between counting fields containing NI (method Sh8 in accordance with GOST 1778-70), measurements with the Quantimet-360 and Quantimet-720 CIP, as well as the determination of the concentrations of electrically isolated oxide inclusions. The authors examined hot-rolled 38KhN3MFA steel from seven commercial batches.

• Research Organization: Moscow Institute of Steel and Alloys (USSR)
• OSTI ID: 6965588
• Journal Information: Ind. Lab. (Engl. Transl.); (United States), Journal Name: Ind. Lab. (Engl. Transl.); (United States) Vol. 53:7; ISSN INDLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
CALIBRATION STANDARDS
CHALCOGENIDES
CHROMIUM ALLOYS
COMPUTERIZED SIMULATION
CONTROL
DATA ACQUISITION SYSTEMS
IMAGE PROCESSING
IMPURITIES
INCLUSIONS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
METALLOGRAPHY
MOLYBDENUM ADDITIONS
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL STEELS
NICKEL-CHROMIUM STEELS
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PROCESSING
QUALITY CONTROL
SIMULATION
STANDARDIZATION
STANDARDS
STEELS
SULFIDES
SULFUR COMPOUNDS
TESTING