Formation of Cu-Pb alloys by means of liquid metal homogenization / Chikova O. A.,Sakun G. V.,Tsepelev V. S. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2016. - V. 57, l. 6. - P. 580-585.

ISSN/EISSN:

1067-8212 / 1934-970X

Type:

Article

Abstract:

The microstructure of Cu-Pb alloys containing 7, 32, 50, 55, and 73 at \% Pb, preliminarily over-heated in the liquid state to 1300A degrees C and crystallized with a cooling rate of 10 K/s is investigated. It is shown that melt overheating leads to the complete or partial suppression of metal stratification and the formation of its more homogeneous structure, which indirectly evidences the variation in the structural state of metallic liquid. The application of the homogenizing thermal treatment of Cu-Pb melts by overheating to a temperature definite for each composition as the method for the formation of bulk ingots with a homogeneous structure is substantiated. It is shown that the Cu-50 at \% Pb melt, which has the highest mixing enthalpy, is the most promising composition for the formation of bulk ingots by the homogenizing thermal treatment of the melt. The smallest difference in microhardness of the phases based on copper and lead for the Cu-50 at \% Pb alloy determines the ability of the material to bear mechanical loads without residual shaping and destruction, as well as stability to various types of wear.

Author keywords:

Cu-Pb alloys; microstructure; microhardness; melt; stratification; monotectic; thermal treatment of the melt

DOI:

10.3103/S1067821216060043

Web of Science ID:

ISI:000391943300008

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
EISSN	1934-970X
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	chik63@mail.ru sagal-66@inbox.ru v.s.tsepelev@ustu.ru
Number-of-Cited-References	13
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	3
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	EH7HI