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	Microstructure and properties of TP2 copper tube with La microalloying by horizontal continuous casting
	Wu, JH; Zhang, SH; Chen, Y; Li, HH; Song, HW; Cheng, M; Liu, JS; Zhang, SH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
刊名	CHINA FOUNDRY
	2018
卷号	15期号:1页码:31-36
关键词	Rare-earth-elements Mechanical-properties As-cast Corrosion Behavior Pure Copper Samarium Addition Sm Addition Alloy Ce Composites
ISSN号	1672-6421
英文摘要	The TP2 copper tube was prepared with La microalloying by horizontal continuous casting (HCC). The absorptivity of La and its effects on microstructure, tensile and corrosion properties of HCC TP2 copper tube were studied by means of the inductively coupled plasma optical emission spectrometer (ICP-OES), optical microscope (OM), scanning electron microscope (SEM) and potentiodynamic polarization measurements. The results show that the absorptivity of La in the HCC TP2 copper tube is about 15% under antivacuum conditions due to the good chemical activities of La. The impurity elements in copper tube such as O, S, Pb and Si can be significantly reduced, and the average columnar dendrite spacing of the copper tube can also be reduced from 2.21 mm to 0.93 mm by adding La. The ultimate tensile strength and the elongation with and without La addition are almost unchanged. However, the annual corrosion rate of the HCC TP2 copper tube is reduced from 10.18 mm.a(-1) to 9.37 mm.a(-1) by the purification effect of trace La.; The TP2 copper tube was prepared with La microalloying by horizontal continuous casting (HCC). The absorptivity of La and its effects on microstructure, tensile and corrosion properties of HCC TP2 copper tube were studied by means of the inductively coupled plasma optical emission spectrometer (ICP-OES), optical microscope (OM), scanning electron microscope (SEM) and potentiodynamic polarization measurements. The results show that the absorptivity of La in the HCC TP2 copper tube is about 15% under antivacuum conditions due to the good chemical activities of La. The impurity elements in copper tube such as O, S, Pb and Si can be significantly reduced, and the average columnar dendrite spacing of the copper tube can also be reduced from 2.21 mm to 0.93 mm by adding La. The ultimate tensile strength and the elongation with and without La addition are almost unchanged. However, the annual corrosion rate of the HCC TP2 copper tube is reduced from 10.18 mm.a(-1) to 9.37 mm.a(-1) by the purification effect of trace La.
学科主题	Metallurgy & Metallurgical Engineering
语种	英语
资助机构	Plan of the Chinese Academy of Sciences (CAS) [2012037]; Science Foundation of the Chinese Academy of Sciences [2012005]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79606]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, SH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wu, JH,Zhang, SH,Chen, Y,et al. Microstructure and properties of TP2 copper tube with La microalloying by horizontal continuous casting[J]. CHINA FOUNDRY,2018,15(1):31-36.
APA	Wu, JH.,Zhang, SH.,Chen, Y.,Li, HH.,Song, HW.,...&Zhang, SH .(2018).Microstructure and properties of TP2 copper tube with La microalloying by horizontal continuous casting.CHINA FOUNDRY,15(1),31-36.
MLA	Wu, JH,et al."Microstructure and properties of TP2 copper tube with La microalloying by horizontal continuous casting".CHINA FOUNDRY 15.1(2018):31-36.

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