Microstructure and properties of TP2 copper tube with La microalloying by horizontal continuous casting

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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.
	2018
发表期刊	CHINA FOUNDRY
ISSN	1672-6421
卷号	15 期号:1 页码:31-36
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.
部门归属	[wu, jin-hu ; zhang, shi-hong ; chen, yan ; song, hong-wu ; cheng, ming ; liu, jin-song] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [wu, jin-hu] univ chinese acad sci, beijing 100049, peoples r china ; [li, hai-hong] yantai univ, sch environm & mat engn, yantai 264005, peoples r china
关键词	Rare-earth-elements Mechanical-properties As-cast Corrosion Behavior Pure Copper Samarium Addition Sm Addition Alloy Ce Composites
学科领域	Metallurgy & Metallurgical Engineering
资助者	Plan of the Chinese Academy of Sciences (CAS) [2012037]; Science Foundation of the Chinese Academy of Sciences [2012005]
收录类别	SCI
语种	英语
WOS记录号	WOS:000424351800005
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79606
专题	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.