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1、萬(wàn)方數(shù)據(jù)第41卷2005年2月第2期209—213頁(yè)金屬學(xué)玻ACTAMETALLURGICASINICAV01.41Feb.2005NO.2PP.209—213鐵基塊狀非晶合金的制備及性能劉冬艷·)王成。)張海峰-)胡壯麒·)1)中國(guó)科學(xué)院金屬研究所沈陽(yáng)材料科學(xué)國(guó)家(聯(lián)合)實(shí)驗(yàn)室,沈陽(yáng)1100162)中國(guó)科學(xué)院金屬研究所金屬腐蝕與防護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室,沈陽(yáng)110016摘要采用工業(yè)材料利用銅模澆注方法制備了直徑為1.5mm的Fe60CosZrloM05W2815塊狀非晶合金.利用XRD和DSC對(duì)非晶合金鑄態(tài)結(jié)構(gòu)及熱穩(wěn)定性進(jìn)行了分析.該合金的玻璃轉(zhuǎn)變溫度墨、晶化開(kāi)始溫度足、過(guò)冷液相區(qū)△了1x(兄
2、一毛)及約化玻璃轉(zhuǎn)變溫度正g(玨/死、)分別為891K,950K,59K和o.62.M5ssbauer譜為寬化、非對(duì)稱的雙線譜,表明該合金為順磁性的非晶合金.該合金在3.5%NaCl溶液和lmol/LHCI溶液中表現(xiàn)出良好的抗腐蝕性能,電化學(xué)阻抗譜為單一的容抗弧,而且在3.5%NaCl溶液中測(cè)得的極化曲線上存在鈍化區(qū).合金硬度為HVl032.關(guān)鍵詞鐵基塊狀非晶合金,玻璃形成能力,熱穩(wěn)定性,耐腐蝕性能中圖法分類號(hào)TGl39.8文獻(xiàn)標(biāo)識(shí)碼A文章編號(hào)0412-1961(2005)02一0209一05PREPARATIoNANDPRoPERTIESoFFe—BASEDBULKMETALLICGLA
3、SSLIUDongyan¨,w疆ⅣGChen]),刪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