TiAl合金熔炼用La2O3掺杂Y2O3陶瓷坩埚材料的制备与性能
Preparation and Properties of La2O3-doped Y2O3 CeramicCrucible Material for TiAl Alloy Melting
摘 要
通过固相掺杂和真空烧结技术制备了掺杂不同质量分数(0~15%) La2O3的Y2O3陶瓷,研究了陶瓷的微观结构、抗弯强度,并用该陶瓷进行TiAl合金熔炼试验,分析了界面微观结构、界面反应类型以及合金熔体的氧含量。结果表明:随着La2O3掺杂量的增加,La2O3掺杂Y2O3陶瓷的开气孔率先减小后增大,抗弯强度先升高后降低,当La2O3掺杂质量分数为10%时,陶瓷的开气孔率最小,抗弯强度最高,分别为0.45%,104 MPa;用质量分数10% La2O3掺杂Y2O3陶瓷熔炼TiAl合金后,二者界面出现了平均厚度为2.10 μm的过渡层,过渡层的物相为YLaO3,陶瓷与合金间发生物理溶蚀反应,合金熔体的氧质量分数为2 400 mg·kg-1,仅为未掺杂La2O3陶瓷的70%左右。
真空烧结
TiAl合金熔炼
物理溶蚀
La2O3-doped Y2O3 ceramic
vacuum sintering
TiAl alloy melting
physical dissolution
Abstract
Y2O3 ceramics doped with different mass fraction (0-15%)of La2O3 were prepared by solid phase doping and vacuum sintering. The microstructure and flexural strength of the ceramics were studied. The melting test of TiAl alloy was carried out with the ceramic, and the interface microstructure, interface reaction type and oxygen content of alloy melt were analyzed. The results show that with increasing La2O3 doping content, the open porosity of La2O3-doped Y2O3 ceramics decreased first and then increased, and the flexural strength increased first and then decreased. When the mass fraction of La2O3 doping was 10%, the ceramics had the smallest open porosity of 0.45% and the highest flexural strength of 104 MPa. After melting TiAl alloy with 10wt% La2O3-doped Y2O3 ceramics, a transition layer with an average thickness of 2.10 μm appeared at the interface, and the phase of the transition layer was YLaO3. A physical dissolution reaction occurred between ceramic and alloy. The oxygen mass fraction of alloy melt was 2 400 mg·kg-1 and was only about 70% of that of ceramics without doping La2O3.
中图分类号 TB34 DOI 10.11973/jxgccl202206001
所属栏目 试验研究
基金项目
收稿日期 2021/1/27
修改稿日期 2022/5/26
网络出版日期
作者单位点击查看
备注李浩然(1997-),男,河南开封人,硕士研究生导师:刘岩研究员
引用该论文: LI Haoran,LIU Yan,YUAN Ming,YANG Jinjing,LIU Xuejian,HUANG Zhengren. Preparation and Properties of La2O3-doped Y2O3 CeramicCrucible Material for TiAl Alloy Melting[J]. Materials for mechancial engineering, 2022, 46(6): 1～6
李浩然,刘岩,袁明,杨金晶,刘学建,黄政仁. TiAl合金熔炼用La2O3掺杂Y2O3陶瓷坩埚材料的制备与性能[J]. 机械工程材料, 2022, 46(6): 1～6
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参考文献
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【2】CLEMENS H, KESTLER H.Processing and applications of intermetallic γ-TiAl-based alloys[J]. Advanced Engineering Materials, 2000,2(9):551-570.
【3】李成功.航空航天材料[M].北京:国防工业出版社,2002. LI C G. Aerospace Materials[M]. Beijing:National Defense Industry Press, 2002.
【4】陈玉勇,苏勇君,孔凡涛.TiAl金属间化合物制备技术的研究进展[J].稀有金属材料与工程,2014,43(3):757-762. CHEN Y Y, SU Y J, KONG F T. Research progress in preparation of TiAl interemetallic based compound[J]. Rare Metal Materials and Engineering, 2014, 43(3):757-762.
【5】刘娣,张利军,米磊,等.TiAl合金的制备及应用现状[J].钛工业进展,2014,31(4):11-15. LIU D, ZHANG L J, MI L, et al. Preparation and application status of TiAl alloy[J]. Titanium Industry Progress, 2014, 31(4):11-15.
【6】黄淑梅,韩明臣.钛的悬浮熔炼与铸造[J].金属学报, 2002, 38(增刊):334-336. HUANG S M, HAN M C. Levilation melting and cast of titanium[J]. Acta Metallurgica Sinica, 2002, 38(S):334-336.
【7】贾均.钛铝合金及其熔炼技术[J].特种铸造及有色合金,1998,18(4):8-10. JIA J. The melting techniques for TiAl alloys[J]. Special Casting&Nonferrous Alloys, 1998, 18(4):8-10.
【8】黄金昌.等离子电弧熔炼钛铝金属间化合物[J].钛工业进展,1994,11(5):1-1. HUANG J C. Plasma arc melting TiAl intermetallics[J]. Titanium Industry Progress, 1994, 11(5):1-1.
【9】KUANG J P, HARDING R A, CAMPBELL J. Investigation into refractories as crucible and mould materials for melting and casting γ-TiAl alloys[J]. Materials Science and Technology, 2000, 16(9):1007-1016.
【10】EATESAMI D, HADAVI M M, HABIBOLLAHZADE A. Melting of γ-TiAl in the alumina crucible[J]. Russian Journal of Non-Ferrous Metals, 2009, 50(4):363-367.
【11】GOMES F, BARBOSA J, RIBEIRO C S. Induction melting of γ-TiAl in CaO crucibles[J]. Intermetallics, 2008, 16(11/12):1292-1297.
【12】TETSUI T, KOBAYASHI T, MORI T, et al. Evaluation of yttria applicability as a crucible for induction melting of TiAl alloy[J]. Materials Transactions, 2010, 51(9):1656-1662.
【13】TETSUI T, KOBAYASHI T, KISHIMOTO A, et al. Structural optimization of an yttria crucible for melting TiAl alloy[J]. Intermetallics, 2012, 20(1):16-23.
【14】ZHANG L, HUANG Z, PAN W. High transparency Nd:Y2O3 ceramics prepared with La2O3 and ZrO2 additives[J]. Journal of the American Ceramic Society, 2014:1-5.
【15】HUANG Y, JIANG D, ZHANG J, et al. Fabrication of transparent lanthanum-doped yttria ceramics by combination of two-step sintering and vacuum sintering[J]. Journal of the American Ceramic Society, 2009, 92(12):2883-2887.
【16】COUTURES J, FOEX M. Etude h Haute temperature du diagramme d'equilibre du systme form par le sesquioxyde de lanthane avec le sesquioxyde d'yttrium[J]. Journal of the Solid State Chemistry 11, 1974:294-300.
【17】HUMPHREYS C J. The significance of Bragg's law in electron diffraction and microscopy, and Bragg's second law[J]. Acta Crystallographica Section A, 2013, 69:45-50.
【18】HUANG Y H, JIANG D L, ZHANG J X, et al. Precipitation synthesis and sintering of lanthanum doped yttria transparent ceramics[J]. Optical Materials, 2009, 31(10):1448-1453.
【19】IVANOV M, KOPYLOV Y, KRAVCHENKO V, et al. Sintering and optical quality of highly transparent Yb-doped yttrium lanthanum oxide ceramics[J]. Physica Status Solidi C, 2013,10(6):940-944.
【20】IVANOV M, KOPYLOV Y, KRAVCHENKO V, et al. Highly transparent ytterbium doped yttrium lanthanum oxide ceramics[J]. Journal of Rare Earths, 2014, 32(3):254-258.
【21】IVANOV M, KOPYLOV Y, KRAVCHENKO V, et al. Optical,luminescent and laser properties of highly transparent ytterbium doped yttrium lanthanum oxide ceramics[J]. Optical Materials, 2015, 50:15-20.
【22】BALABANOV S S, BYKOV Y V, EGOROV S V, et al. Yb\:(YLa)2O3 laser ceramics produced by microwave sintering[J]. Quantum Electronics, 2013, 43(4):396-400.
【23】DURAUD J P, JOLLET F, THROMAT N, et al. Nonstoichiometry in pure and Zr-doped yttria ceramics:An EXAFS and XPS study[J]. Journal of the American Ceramic Society, 1990, 73(8):2467-2473.
【24】LI X K, MAO X J, FENG M H, et al. Optical absorption and mechanism of vacuum-sintered ZrO2-doped Y2O3 ceramics[J]. Journal of the European Ceramic Society, 2016, 36(16):4181-4184.
【25】CAROLAN D, IVANKOVI AC'G A, MURPHY N. Thermal shock resistance of polycrystalline cubic boron nitride[J]. Journal of the European Ceramic Society, 2012, 32(10):2581-2586.
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【27】YAO D X, ZENG Y P, ZUO K H, et al. Porous Si3N4 ceramics prepared via nitridation of Si powder with Si3N4 filler and postsintering[J]. International Journal of Applied Ceramic Technology, 2012, 9(2):239-245.
【28】何敬晖,秦松岩,玄真武,等.不同晶粒尺寸对CVD金刚石膜机械性能的影响[J].超硬材料工程,2009,21(5):5-7. HE J H, QIN S Y, XUAN Z W, et al. Influence of different grain size on mechanical properties of CVD diamond film[J]. Superhard Material Engineering, 2009, 21(5):5-7.
【29】王文瀚,李晓云,丘泰.掺杂MgO和La2O3对Al2O3陶瓷性能的影响[J].电子元件与材料,2011,30(7):9-13. WANG W H, LI X Y, QIU T. Effect of MgO and La2O3 doping on properties of Al2O3 ceramics[J]. Electronic Components and Materials, 2011, 30(7):9-13.
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