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ID:33955999
大小:410.30 KB
页数:7页
时间:2019-03-02
《铁基块状非晶合金地制备及性能 (1)》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、万方数据第41卷2005年2月第2期209—213页金属学玻ACTAMETALLURGICASINICAV01.41Feb.2005NO.2PP.209—213铁基块状非晶合金的制备及性能刘冬艳·)王成。)张海峰-)胡壮麒·)1)中国科学院金属研究所沈阳材料科学国家(联合)实验室,沈阳1100162)中国科学院金属研究所金属腐蚀与防护国家重点实验室,沈阳110016摘要采用工业材料利用铜模浇注方法制备了直径为1.5mm的Fe60CosZrloM05W2815块状非晶合金.利用XRD和DSC对非晶合金铸态结构及热稳定性进行了分析.该合金的玻璃转变温度墨、晶化开始温度足、过冷液相区△了1x(兄
2、一毛)及约化玻璃转变温度正g(珏/死、)分别为891K,950K,59K和o.62.M5ssbauer谱为宽化、非对称的双线谱,表明该合金为顺磁性的非晶合金.该合金在3.5%NaCl溶液和lmol/LHCI溶液中表现出良好的抗腐蚀性能,电化学阻抗谱为单一的容抗弧,而且在3.5%NaCl溶液中测得的极化曲线上存在钝化区.合金硬度为HVl032.关键词铁基块状非晶合金,玻璃形成能力,热稳定性,耐腐蚀性能中图法分类号TGl39.8文献标识码A文章编号0412-1961(2005)02一0209一05PREPARATIoNANDPRoPERTIESoFFe—BASEDBULKMETALLICGLA
3、SSLIUDongyan¨,w疆ⅣGChen]),删ⅣG肌咖ng¨,日UZhuangqil)11ShenyangNationalLaboratoryforMaterialsScience,InstituteofMetalResearch,TheChineseAcademyofSciencesShenyang1100162)StateKeyLaboratoryforCorrosionandProtection,InstituteofMetalResearch,TheChineseAcademyofSciences,Shenyang110016Correspondent:ZHANGH嘣eng.
4、professor,Tel:(024)239717s3}Fax:(024)23891320,E—mail:h#hant@...qimraccnSupportedbyNationalIiighTechnicalResearchandDevelopmentProgrammeofChina(No.2001AA3310101andNationatKeyBasicResearchandDevelopmentProgrammeofChina(No.G200067201)Manuscriptreceived2004—03—15.inrevisedform2004—06—01ABSTRACTAbulkme
5、tallicglass(BMG)cylinderofFeaoC08ZrloM05W2815withadiameterof1.5mmwaspreparedbycoppermouldcastingindustrialrawmaterials.TheamorphousstatewasindicatedbyX—raydifiraction(XRD).Thethermalstabilityparameters,suchasglasstransitiontem—perature(疋),crystallizationonsettemperature(足),supercooledliquidregion(
6、△Tx=Tx一是),andreducedglasstransitiontemperature(正g=耳/21m)weremeasuredbydifferentialscanningcalorimetryfDSC)tobe891K,950K,59K,and0.62,respectively.IntheM5ssbauerspectrumexistsabroad—enedandasymmetricdoublet——likepeakwhichindicatesparamagneticbehaviorandafullyamorphousstructure.Thepotentiodynmicpolar
7、izationexperimentsshowthatthisalloyhasahighcorrosionresistancein3.5%NaClsolutionanditsanodicreactionhasapassivecharacteristic.EISconsistsonlyofsinglecapacitiveloop.manifestingahighcorrosionresistance.≤rhisbulkmet
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