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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
Source PublicationCHINA FOUNDRY
ISSN1672-6421
Volume15Issue:1Pages:31-36
AbstractThe 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.
description.department[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
KeywordRare-earth-elements Mechanical-properties As-cast Corrosion Behavior Pure Copper Samarium Addition Sm Addition Alloy Ce Composites
Subject AreaMetallurgy & Metallurgical Engineering
Funding OrganizationPlan of the Chinese Academy of Sciences (CAS) [2012037]; Science Foundation of the Chinese Academy of Sciences [2012005]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79606
Collection中国科学院金属研究所
Corresponding AuthorZhang, SH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
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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