研究了在Zr-4合金中添加2 wt％ Cu的合金显微组织及其在500℃和10.3 MPa过热蒸汽中的耐腐蚀性能.结果表明,该合金经过热轧、冷轧以及经2h、580℃真空退火处理后,得到以α-Zr为基体的显微组织,合金中主要存在四方结构的Zr2Cu和密排六方结构的Zr(Fe,Cr,Cu)2第二相,Zr2Cu相有长度1～4 μm、厚度约1μm的片状和直径300～500 nm的球形两种形态,并且都会富集一定量的Fe元素.在10.3 MPa、500℃过热水蒸汽中,添加2 wt％Cu的Zr-4合金不发生疖状腐蚀,表明Cu是改善锆合金耐疖状腐蚀性能的有益元素.
参考文献
| [1] | Liu WQ;Li QA;Zhou BX;Yan QS;Yao MY .Effect of heat treatment on the microstructure and corrosion resistance of a Zr-Sn-Nb-Fe-Cr alloy[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2005(2/3):97-102. |
| [2] | 李强,周邦新,姚美意,刘文庆,褚于良.锆合金在550℃,25 MPa超临界水中的腐蚀行为[J].稀有金属材料与工程,2007(08):1358-1361. |
| [3] | 卡恩 R W;哈森 P;克雷默 E J.核应用中的锆合金[A].北京:科学出版社,1999:1-45. |
| [4] | Chakravartty JK.;Banerjee S.;Prasad YVRK.;Dey GK. .CHARACTERIZATION OF HOT DEFORMATION BEHAVIOUR OF ZR-2.5NB-0.5CU USING PROCESSING MAPS[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,1995(2):247-255. |
| [5] | Castaldelli L;Fizzotti C.Long-term test results of promising new zirconium alloys[A].,1982:105-126. |
| [6] | Yilmazbayhan A.;Motta AT.;Comstock RJ.;Sabol GP.;Lai B.;Cai ZH. .Structure of zirconium alloy oxides formed in pure water studied with synchrotron radiation and optical microscopy: relation to corrosion rate[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2004(1):6-22. |
| [7] | Hong HS.;Kim SJ.;Lee KS.;Moon JS. .Investigation on the oxidation characteristics of copper-added modified Zircaloy-4 alloys in pressurized water at 360 degrees C[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(2):113-119. |
| [8] | Hong HS.;Kim SJ.;Lee KS.;Kim HS. .Effects of copper addition on the tensile properties and microstructures of modified Zircaloy-4[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2000(2):230-234. |
| [9] | Ch Arquetd;Hahnr,Ortlibe.Solubility limits and formation of intermetallic precipitates in Zr-Sn-Fe-Cr alloys[A].Philadelphia,PA:ASTM,1989:405-422. |
| [10] | 周邦新;苗志;李聪 .Zr(Fe,Cr)2金属间化合物在500℃过热蒸汽中的腐蚀研究[J].核动力工程,1997,18(01):53-60. |
| [11] | 李强,梁雪,彭剑超,余康,姚美意,周邦新.Cu对Zr-2.5Nb合金在500℃/10.3MPa过热蒸汽中腐蚀行为的影响[J].金属学报,2011(07):877-881. |
| [12] | Taylor D F .An oxide-semiconduetance model of nodular corrosion and its application to Zirconium alloy development[J].Journal of Nuclear Materials,1991,184(01):65-77. |
| [13] | 李强 .锆合金在550℃/25MPa超临界水中腐蚀行为的研究[D].上海大学,2008. |
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