高性能抗震摻雜鎢絲的制備研究.pdf

1、I分類號：密級：學號：2006G017單位代碼：10407碩士學位論文論文題目:高性能抗震摻雜鎢絲的制備研究研究方向金屬材料工程專業(yè)名稱材料工程研究生姓名王鐵虎導師姓名、職稱楊斌教授2011年6月2日江西贛州IIIAbstractAbstractAlongwiththedevelopmentofnationaleconomytransptationnationaldefenseindustriesneedalargenumberofim

2、ptedfromabroadhighperfmanceantiseismictungstenfilamentwhichnoteasyprolapsebreatheinwkingenvironmentharshconditions.Thisarticleexplesexplicitstopreparativewellcrafttungstenfilamentthathighresistanceofprolapseshakeproducti

3、ontechniquesbaseondiuarytechnology.Thispaperholdsthatinthepreparationofdopingtungstenpowdermetallurgicalstagetothehightemperatureperfmancetungstenfilamentseismicperfmancehavekeyeffect:：1）Thisarticlethinksthatchoosesvario

4、usimpuritiescontentless50ppmgrainfeatureofasingleobliquecrystalhexagonstructuregoodflowingperfmanceofAPTwhichcanobtaincrystalsizeof9.1umbluetungsticoxideintemperatureof260℃460℃hydrogenflowingof0.30.5m3hconditions.2）Thebl

5、uetungstenoxidethataddingKAlCoSielementscangetdifferentpartiedsizesoftungstenpowderwhichneedtopasstwodeoxidationphasesintemperature550℃870℃.ThisarticlethinkB:Dpowderthebestproptionof4:6.Becausetungstenpowdersizecanappear

6、nmaldistributiontungstenfilamentresistanceofprolapseshakeperfmancegreatlyimprovedinhightemperature.3）Sinteringtungstenbarsofshapedimensionf1515400mmspecificgravityin17.2gcmcrystallitesizef7—8levelsobtaintopasstwoslowlyte

7、mperaturerisingsinteringphases.Thissinteringtungstenbarcangetexcellenttemperatureperfmancetungstenfilament.Itisanalyzedthatcrafecotungstenfilamentobtaingoodwkabilityresistanceofshakeperfmancebesttechnologywhichneedtousem

8、esothermslowlyspeedrising.Thisarticleanalyzesthemixedcobalttungstenbilletganizationperfmancethechangeofthelawinplasticprocessingprocess(rotaryswagingstretching).Becauseofplasticprocessingindepthtungstenfilamentdensityinc

9、reasewkhardeningimproveinpromptlyintermediationannealingcondition.Tophi10.0mmannealingtungstenfilamentanalyzesperfmanceofinfluenceinhightemperature.Goodhightemperaturehighprocessingyieldtungstenfilamentneed1900℃recrystal