SEPARATIONS AND THEIR CONTRIBUTION INTO THE IMPACT TOUGHNESS OF STEELS OF STRENGTH CLASS K65 (X80) / Farber V. M.,Khotinov V. A.,Morozova A. N.,Martin T. // METAL SCIENCE AND HEAT TREATMENT. - 2015. - V. 57, l. 7-8. - P. 487-491.

ISSN/EISSN:

0026-0673 / 1573-8973

Type:

Article

Abstract:

The contribution of separations into the impact toughness of steels of strength class X80 is studied. Tests for impact bending are preformed in the range from +20 to -90 degrees C, and analysis of fracture surfaces of Charpy specimens is performed. It is shown that the length L-h of the high-energy zone of homogeneous ductile fracture is directly correlated with the level of the impact toughness KCV. The evolution of the form and number of separations upon lowering of the test temperature is considered. The conditions of attainment of a high level of impact toughness (KCV-60 >= 250 J/cm(2)) are determined.

Author keywords:

separations; steels of strength class X80; impact toughness; fracture surface; Charpy transition curve

DOI:

10.1007/s11041-015-9909-z

Web of Science ID:

ISI:000368407700018

Соавторы в МНС:

Другие поля

Поле	Значение
Month	NOV
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-8973
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	khotinov@yandex.ru
ResearcherID-Numbers	Morozova, Anna/N-8993-2017
ORCID-Numbers	Morozova, Anna/0000-0002-7071-2527
Funding-Acknowledgement	program for support of leading universities of RF aimed at raising their competitiveness of Government of RF {[}02.A03.21.0006, 211]
Funding-Text	The work has been performed with the help of the equipment of the laboratory for structural methods of analysis and properties of materials and nanomaterials of TsKP UrFU within the design topic of the Ministry of Education and Science of the Russian Federation (State Specification No. 11.1465.2014/K) and with assistance of the program for support of the leading universities of the RF aimed at raising their competitiveness No. 211 of the Government of the RF No. 02.A03.21.0006.
Number-of-Cited-References	24
Usage-Count-Since-2013	2
Journal-ISO	Met. Sci. Heat Treat.
Doc-Delivery-Number	DB3JR