Copper Alloys Structure Parameters

被引：0
|
作者：
Martyushev, Nikita, V [1 ]
机构：
[1] Tomsk Polytech Univ, Tomsk 634050, Russia
来源：
HIGH TECHNOLOGY: RESEARCH AND APPLICATIONS | 2014年 / 1040卷
关键词：
dendrites; bronze; crystallisation; copper;
D O I：
10.4028/www.scientific.net/AMR.1040.225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this research it was examined the influence of crystallisation conditions binary leaded bronze on parametres of a received microstructure. Change of crystallisation conditions was carried out by change of cooling melt speed, through preliminary heating of casting moulds. Quantitative regularities of influence of cooling rate of explored bronze on parametres dendritic cells, grain size are presented. The data about formation of lead inclusions between dendrites of a copper matrix are published as well. It is shown that high rates of cooling of an order 100-150 degrees C/c lead to dendritic structures formation containing only axes of the first and second order. Decrease of cooling rate at the moment of crystallisation to the values less 15 degrees C/c leads to appearance and growth of axes of 3rd order at dendrites matrix.
引用
收藏
页码：225 / 229
页数：5
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