Please wait a minute...
材料研究学报  2010, Vol. 24 Issue (2): 191-195    
  研究论文 本期目录 | 过刊浏览 |
反应合成Ti--35\%Al多孔合金的膨胀特性
江垚;  贺跃辉
中南大学粉末冶金国家重点实验室 长沙 410083
Swelling Behavior of Porous Ti–35%Al Alloy Prepared by Reactive Synthesis
JIANG Yao; HE Yuehui
State key laboratory for powder metallurgy; Central south university; Changsha 410083
引用本文:

江垚 贺跃辉. 反应合成Ti--35\%Al多孔合金的膨胀特性[J]. 材料研究学报, 2010, 24(2): 191-195.
, . Swelling Behavior of Porous Ti–35%Al Alloy Prepared by Reactive Synthesis[J]. Chin J Mater Res, 2010, 24(2): 191-195.

全文: PDF(757 KB)  
摘要: 

烧结膨胀特性是元素粉末反应合成Ti--Al合金多孔材料的重要特征, 与其孔结构性能密切相关。本文在其它制备参数一定的条件下, 从普通反应合成和约束烧结二个过程分别论述Ti--Al合金多孔材料的膨胀行为及其规律。结果表明: Ti/Al元素的溶解度和扩散速率的差异导致Kirkendall孔隙的产生, 引起了坯体体积的大幅度膨胀。在Al的第一阶段偏扩散过程中, Ti--Al烧结坯发生了高达60\%以上的大幅度体积膨胀行为, 同时坯体的开孔隙度接近40\%; 在Al的第二阶段偏扩散过程中, Ti/Al烧结坯的体积膨胀量为1\%--3\%, 同时坯体的开孔隙度达到47%左右。而在约束烧结过程中, Ti--Al合金多孔材料的前期膨胀行为表现出严格的直线变化规律; 在烧结后期, Ti--Al合金多孔材料表现出体积略为收缩的行为。

关键词 金属材料  Ti--Al金属间化合物 多孔材料 反应合成, 膨胀行为    
Abstract

Swelling behavior is an important feature of Ti–Al alloy porous material prepared by reactive synthesis of element powder as raw material, and closely related with its pore structure properties. The influences of reactive synthesis process and restrained sintering on swelling behavior of Ti–Al alloy porous material were investigated thoroughly and detailedly under the given condition of other preparing parameters. The results show Kirkendall pores formed due to the discrepancies of Ti/Al solubility and diffusion rates lead to the wide–range expansion of compact volume. In the first stage of Al diffusion, Ti–Al compact appears volume expansion behavior of more than 60% and near 40% of open porosity; in the second stage of Al diffusion, Ti–Al compact occurs volume expansion of 1%–3% with open porosity of 47%. In earlier stage sintering procedure, swelling behavior of Ti–Al alloy porous material through restrained sintering shows strict linear law; in final sintering procedure, it shows a little shrinkage behavior of volume.

Key wordsmetallic materials    Ti–Al intermetallic compound    porous material    reactive synthesis    swelling behavior
收稿日期: 2009-10-22     
基金资助:

国家杰出青年基金50825102,国家自然科学基金重点20636020,中南大学理科发展基金资助项目。

1 H.Kamide, H.Kashima, Hot corrosion behaviour of TiAl with salt in artificial sea–water, Corrosion Engineering, 46(2), 83–89(1997)
2 Z.Tang, F.Wang, W.Wu, Hot–corrosion behavior of TiAl–base intermetallics in molten salts, Oxidation of Metals, 51(3), 235–250(1999)
3 W.J.Wang, J.P.Lin, Y.L.Wang, Y.Zhang, G.L.Chen, Isothermal corrosion TiAl–Nb alloy in liquid zinc, Materials Science and Engineering A, 452–453(15), 194–201(2007)
4 D.Hu, X.Wu, M.H.Loretto, Advances in optimisation of mechanical properties in cast TiAl alloys, Intermetallics, 13(9), 914–919(2005)
5 Y.W.Kim, Advances in the fundamental understanding for designing engineering gamma TiAl alloys, Transactions of the Chinese Institute of Engineers, Series A, 22(1), 13–25(1999)
6 Z.Zhong, D.Zou, S.Li, Advance in Ti3Al and TiAl intermetallic materials, Acta Metallurgica Sinica, Series A, 8(4–6), 531–541(1995)
7 LIU Yong, HUANG Baiyun, HE Yuehui, YANG Bing, Manufacturing TiAl based alloy through elemental powder metallurgy process, Materials Science and Engineering of Powder Metallurgy, 4(03), 189–194(1999)
(刘 咏, 黄伯云, 贺跃辉, 杨 兵, 元素粉末冶金方法制备TiAl基合金, 粉末冶金材料科学与工程,  4(03), 189--194(1999))
8 Yuehui He, Yao Jiang, Nanping Xu, Jin Zou, Baiyun Huang, Chain T.Liu, Peter K.Liaw. Fabrication of Ti–Al Micro/Nanometer–Sized Porous Alloys through the Kirkendall Effect. Advanced Materials, 19, 2102–2106(2007)
9 Y.Jiang, Y.H.He, N.P.Xu, J.Zou, B.Y.Huang, C.T.Liu, Effects of the Al content on pore structures of porous Ti–Al alloys, Intermetallics, 16, 327–332(2008)
10 J.B.Yang, W.S.Hwang, Preparation of TiAl–based intermetallics from elemental powders through a two–step pressureless sintering process, Journal of Materials Engineering and Performance, 7(3), 385–392(1998)
11 T.K.Lee, J.H.Kim, S.K.Hwang, Direct consolidation of gamma–TiAl–Mn–Mo from elemental powder mixtures and control of porosity through a basic study of powder reactions, Metallurgical and Materials Transactions A, 28A(12), 2723–2729(1997)
12 J.B.Yang, K.W.Teoh, W.S.Hwang, Solid–state hot pressing of elemental aluminum and titanium powders to form TiAl (γ + α2) intermetallic microstructure, Journal of Materials Engineering and Performance, 5(5), 583–588(1996)
13 T.K.Lee, E.I.Mosunov, S.K.Hwang, Consolidation of a gamma TiAl–Mn–Mo alloy by elemental powder metallurgy, Materials Science & Engineering A, 239–240, 540–545(1997)
14 G.X.Wang, M.Dahms, TiAl–based alloys prepared by elemental powder metallurgy, Powder Metallurgy International, 24(4), 219–225(1992)
15 C.McCullough, J.J.Valencia, C.G.Levi, R.Mehrabian, Phase equilibria and solidification in Ti–Al alloys, Acta Metallurgica, 37(5), 1321–1336(1989)
16 F.J.J.van Loo, G.D.Rieck, Diffusion in the Titanium–Aluminium system em dash 1,2, Acta Metallurgica, 21(1), 61–84(1973)

[1] 毛建军, 富童, 潘虎成, 滕常青, 张伟, 谢东升, 吴璐. AlNbMoZrB系难熔高熵合金的Kr离子辐照损伤行为[J]. 材料研究学报, 2023, 37(9): 641-648.
[2] 宋莉芳, 闫佳豪, 张佃康, 薛程, 夏慧芸, 牛艳辉. 碱金属掺杂MIL125CO2 吸附性能[J]. 材料研究学报, 2023, 37(9): 649-654.
[3] 赵政翔, 廖露海, 徐芳泓, 张威, 李静媛. 超级奥氏体不锈钢24Cr-22Ni-7Mo-0.4N的热变形行为及其组织演变[J]. 材料研究学报, 2023, 37(9): 655-667.
[4] 邵鸿媚, 崔勇, 徐文迪, 张伟, 申晓毅, 翟玉春. 空心球形AlOOH的无模板水热制备和吸附性能[J]. 材料研究学报, 2023, 37(9): 675-684.
[5] 幸定琴, 涂坚, 罗森, 周志明. C含量对VCoNi中熵合金微观组织和性能的影响[J]. 材料研究学报, 2023, 37(9): 685-696.
[6] 欧阳康昕, 周达, 杨宇帆, 张磊. LPSOMg-Y-Er-Ni合金的组织和拉伸性能[J]. 材料研究学报, 2023, 37(9): 697-705.
[7] 徐利君, 郑策, 冯小辉, 黄秋燕, 李应举, 杨院生. 定向再结晶对热轧态Cu71Al18Mn11合金的组织和超弹性性能的影响[J]. 材料研究学报, 2023, 37(8): 571-580.
[8] 熊诗琪, 刘恩泽, 谭政, 宁礼奎, 佟健, 郑志, 李海英. 固溶处理对一种低偏析高温合金组织的影响[J]. 材料研究学报, 2023, 37(8): 603-613.
[9] 刘继浩, 迟宏宵, 武会宾, 马党参, 周健, 徐辉霞. 喷射成形M3高速钢热处理过程中组织的演变和硬度偏低问题[J]. 材料研究学报, 2023, 37(8): 625-632.
[10] 由宝栋, 朱明伟, 杨鹏举, 何杰. 合金相分离制备多孔金属材料的研究进展[J]. 材料研究学报, 2023, 37(8): 561-570.
[11] 任富彦, 欧阳二明. g-C3N4 改性Bi2O3 对盐酸四环素的光催化降解[J]. 材料研究学报, 2023, 37(8): 633-640.
[12] 王昊, 崔君军, 赵明久. 镍基高温合金GH3536带箔材的再结晶与晶粒长大行为[J]. 材料研究学报, 2023, 37(7): 535-542.
[13] 刘明珠, 樊娆, 张萧宇, 马泽元, 梁城洋, 曹颖, 耿仕通, 李玲. SnO2 作散射层的光阳极膜厚对量子点染料敏化太阳能电池光电性能的影响[J]. 材料研究学报, 2023, 37(7): 554-560.
[14] 秦鹤勇, 李振团, 赵光普, 张文云, 张晓敏. 固溶温度对GH4742合金力学性能及γ' 相的影响[J]. 材料研究学报, 2023, 37(7): 502-510.
[15] 刘天福, 张滨, 张均锋, 徐强, 宋竹满, 张广平. 缺口应力集中系数对TC4 ELI合金低周疲劳性能的影响[J]. 材料研究学报, 2023, 37(7): 511-522.