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蛇形通道制备半固态浆料均热后的流变压铸 被引量:1

Rheo-diecasting performance of the semi-solid slurry prepared by serpentine channel pouring and after soaked
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摘要 为了研究蛇形通道制备半固态浆料并经过均热后的流变压铸性能,以A356铝合金为材料进行实验研究.结果表明:当浇注温度为680℃、均热功率为1.6~2.5 kW时,半固态浆料的微观组织可以达到均一,而且初生α(Al)的形貌更加圆整;该浆料经过流变压铸成形后,在铸态下拉伸试样的抗拉强度可达245~260 MPa,伸长率可达8.5%~13%;经过T6热处理后,拉伸试样的抗拉强度可达295~320 MPa,伸长率可达7%~11%.均热可以对浆料的整个温度进行调整来满足不同铸件的流变压铸. To study rheo-diecasting performance of the semi-solid slurry prepared by serpentine channel pouring and after soaked,the A356 aluminum alloy was used.The results show that,under the conditions of pouring temperature of 680 ℃ and soaking power of 1.6~2.5 kW,uniform microstructure can be achieved,and primary α(Al) morphology become rounder.After rheo-diecasting,ultimate tensile strength of the tensile test samples can reach 245~260 MPa,elongation can reach 8.5%~13%.After T6 heat treatment,the ultimate tensile strength can be enhanced to 295~320 MPa,and the elongation to 7%~11%.The temperature of the whole soaked slurry can be adjusted to meet different castings for rheo-diecasting.
出处 《材料科学与工艺》 EI CAS CSCD 北大核心 2012年第2期70-74,共5页 Materials Science and Technology
基金 国家高新技术研究发展计划资助项目(2006AA03Z115) 国家基础研究发展计划资助项目(2011CB6056302-1) 国家自然科学基金资助项目(50774007)
关键词 半固态 A356铝合金 蛇形通道 力学性能 微观组织 semi-solid A356 aluminum alloy serpentine channel mechanical properties microstructure
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参考文献16

  • 1MIWA K, RACHMAT R S, TAMURA T. Effect of solid fraction on microstructure and casting faults of AZ91D in new type semi-solid injection process [ J ]. Solid State Phenomena,2006,116 - 117:441 - 444.
  • 2OMURA N, MURAKAMI Y, L1 Ming-jun, et al. Effect of volume fraction solid and injection speed on me- chanical properties in new type semi-solid injection process[ J]. Solid State Phenomena, 2008,141 - 143 : 761 - 766.
  • 3RACHMAT R S, TAMURA T, MIWA K. Fluidity and microstructures characteristics of AZ 91D by using new type semi-solid injection process [ J ]. Solid State Phe- nomena ,2006,116 - 117:534 - 537.
  • 4毛卫民,赵爱民.球状初晶半固态金属或合金浆料直接成型方法及装置:中国,1411932A[P].2003-04-23.
  • 5FORN A, ESPINOSA I, BAILE M T, et al. Anodizing of 3-356T6 alloys obtained by sub-liquidus casting [ J ]. Solid State Phenomena ,2008,141 - 143:755 - 760.
  • 6FORN A, MENARGUES S, MARTfN E, et al. Sub liq- uidus casting technology for the production of high in- tegrity c0mponent [ J ]. Solid State Phenomena, 2008, 141 - 143:219 - 224.
  • 7WANG Kai', LIU Chang-ming, ZHAI Yan-bo ,et al. Mi- cr0structural characteristics of near-liquidus cast AZ91D alloy during semi-solid die casting[ J]. Trans- actions of Nonferrous Metals Society of China,2010,20 (2) :17i - 177.
  • 8LUKASSON M, APELIAN D, DASGUPTA R. Alloy characterization for the new UBE rheocasting process [ J]. AFS Transactions ,2002,110:271 - 284.
  • 9PAN Q Y, FINDON M, APELIAN D. The continuous rheoc0nversion process ( CRP): A novel SSM approach [ C ~ //Proceedings of the gth International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2004, LimasSol, Cyprus : Worcester Polytechnic In- stitue ,2004 : 122 - 129.
  • 10DOUTRE D, HAY G, WALES P,et al. SEED:a new process for semi-solid forming[ J]. Canadian Metallur- gical Quarterly,2004,43 (2) :265 - 272.

二级参考文献40

  • 1赵建新,朱鸣芳,金宰民,洪俊杓.Al-Si合金在凝固过程中颗粒和枝晶组织的演变[J].理化检验(物理分册),2004,40(9):433-438. 被引量:15
  • 2H.M. Guo,X.J. Yang,B. Hu.RHEOCASTING OF A356 ALLOY BY LOW SUPERHEAT POURING WITH A SHEARING FIELD[J].Acta Metallurgica Sinica(English Letters),2006,19(5):328-334. 被引量:20
  • 3张小立,谢水生,李廷举,杨浩强,金俊泽.阻尼冷却管法制备A356铝合金半固态浆料的研究[J].稀有金属材料与工程,2007,36(5):915-919. 被引量:27
  • 4LUKASSON M,APELIAN D,DASGUPTA R.Alloy characterization for the new UBE rheocasting process[J].AFS Transactions,2002,110:271-284.
  • 5EASTON M A,KAUFMANN H,FRAGNER W.The effect of chemical grain refinement and low superheat pouring on the structure of NRC castings of aluminium alloy Al-7Si-0.4Mg[J].Materials Science and Engineering A,2006,420(1/2):135-143.
  • 6CARDOSO L E,ATKINSON H V,JONES H.Cooling slope casting to obtain thixotropic feedstock.Ⅰ:Observations with a transparent analogue[J].Journal of Materials Science,2008,43(16):5448-5455.
  • 7LEGORETTA E C,ATKINSON H V,JONES H.Cooling slope casting to obtain thixotropic feedstock.Ⅱ:Observations with A356 alloy[J].Journal of Materials Science,2008,43(16):5456-5469.
  • 8YANG Xiao-rong,MAO Wei-min,PEI Sheng.Preparation of semi-solid A356 alloy feedstock cast through vertical pipe[J].Materials Science and Technology,2007,23(9):1049-1053.
  • 9XIE S S,HUANG G J,ZHANG X L,YANG H Q.Study on numerical simulation and experiment of fabrication magnesium semisolid slurry by damper cooling tube method[J].AIP Conference Proceedings,2007,908(1):557-562.
  • 10FLEMINGS M C.Behavior of metal alloys in the semi-solid state[J].Metall Trans A,1991,22(4):957-981.

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