K. Deng
,
Z.M. Ren
,
Y.B. Zhong
,
G.C. Jiang and S.M.Hu 1) School of Materials
,
Shanghai University
,
Shanghai 200072
,
China 2) Shanghai BAOSTEEL Group
,
Shanghai 200941
,
China
金属学报(英文版)
In this paper, coupling the quasi-3D numerical simulation of electromagnetic field and the experiments of continuous casting with soft-contacted mould with some metals such as tin, aluminum, copper and steel, the electromagnetic characteristics of continuous casting with soft-contacted mould is analyzed. It is shown that the electromagnetic pressure on the surface of billet is increasing with the rising of power frequency as a logarithmically parabolic function, with that of electric conductivity of billet as a power junction, and with that of the current in inductor as a parabolic junction.
关键词:
continuous casting (CC)
,
null
,
null
,
null
,
null
沈月
,
谢明
,
毕珺
,
张国全
,
管伟明
,
闻明
,
王松
稀有金属
采用2种制备工艺,即连铸+冷拉丝加工工艺(CC+CD)和连铸+等径角挤压+冷拉丝加工工艺(CC+ ECAP+ CD)制备Cu-8％Ag合金(质量分数),随后进行时效处理.分别测试了不同应变量下Cu-8％Ag合金的力学性能和电学性能,探究了不同制备工艺下合金的显微组织、力学性能及电学性能的变化规律,分析了影响其性能变化的原因,并讨论了ECAP技术与传统冷加工技术相结合是否可以获得更好的综合性能.结果表明:采用CC+ECAP+CD制备的Cu-8％Ag合金的综合性能略高于CC+CD制备的合金.这对解决Cu-Ag合金的高强度与高导电率之间此消彼长的问题具有一定的研究意义和应用价值.
关键词:
Cu-8wt％Ag合金
,
连铸(CC)
,
等径角挤压变形(ECAP)
,
冷拉丝(CD)
