Effect of annealing on properties of hot-rolled electrical copper / Loginov Yu. N.,Demakov S. L.,Ivanova M. A.,Illarionov A. G.,Karabanalov M. S.,Stepanov S. I. // PHYSICS OF METALS AND METALLOGRAPHY. - 2015. - V. 116, l. 4. - P. 393-400.

ISSN/EISSN:

0031-918X / 1555-6190

Type:

Article

Abstract:

Experiments on the annealing of hot-rolled oxygen-containing copper in the temperature range of 300-700A degrees C have been performed and the properties and the structure of the metal after this treatment have been investigated. The mechanical properties were studied by constructing tensile stress-strain curves and by determining the ultimate tensile strength, offset yield stress, percentage elongation, reduction of the area, hardness, and modulus of elasticity. The structural studies were performed using optical and electron microscopy. It has been established that the most substantial decrease after annealing at temperatures above 500A degrees C is characteristic of the offset stress (by 62\% for copper annealed at 600A degrees C). The spheroidization of pores around the particles of copper oxides at the annealing temperature of 600A degrees C has been revealed. It has been established that the annealing of the hot-rolled copper at temperatures of 500-600A degrees C leads to an increase in the plastic properties of the metal due to the development of the mechanism of the spheroidization of pores and a decrease in the effect of stress concentrators.

Author keywords:

copper; rolled wire; structure; annealing; recrystallization; mechanical properties PURE COPPER; RECRYSTALLIZATION; DEFORMATION; WIRE; TEMPERATURE; TEXTURE

DOI:

10.1134/S0031918X1502009X

Web of Science ID:

ISI:000353336600010

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1555-6190
Keywords-Plus	PURE COPPER; RECRYSTALLIZATION; DEFORMATION; WIRE; TEMPERATURE; TEXTURE
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	unl@mtf.ustu.ru
ResearcherID-Numbers	Stepanov, Stepan/H-3317-2014 Karabanalov, Maxim/M-7422-2013 Ivanova, Maria/G-3218-2016
ORCID-Numbers	Stepanov, Stepan/0000-0002-0554-8775 Karabanalov, Maxim/0000-0001-6619-2816 Ivanova, Maria/0000-0002-2231-8891
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation {[}2329]; Yeltsin Ural Federal University for young scientists
Funding-Text	The work was supported in part by the Ministry of Education and Science of the Russian Federation (project 2329) and by a grant from Yeltsin Ural Federal University for young scientists.
Number-of-Cited-References	25
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	27
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	CG5MS