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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
ISSN1672-6421
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
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.
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