高能球磨与热压烧结制备TiAl基合金
Preparation of TiAl-based Alloys by High-energy Ball-milling and Hot-pressing Sintering
摘 要
研究了高能球磨与热压烧结制备TiAl基合金的工艺.结果表明:在同一热压烧结工艺下,球磨时间越长,烧结试样的密度越大.以球磨40 h的粉末为原料,经1 300 ℃热压烧结可获得密度高达3.971 g/cm3的近全致密的TiAl基合金,且得到的TiAl基合金晶粒较小,组织均匀.
热压烧结
TiAl基合金
high-energy ball-milling
hot-pressing sintering
TiAl-based alloy
Abstract
TiAl-based alloys were prepared by high-energy ball-milling and hot-pressing sintering.With the milling time increasing,the densities of the alloys became higher in the same process of hot-pressing sintering.The density of the TiAl alloy with near-full density obtained by hot-pressing sintering at 1 300 ℃ from the powder milled for 40 h is 3.971 g/cm3.Homogeneous microstructure of TiAl-based alloys with fine grains is obtained.
中图分类号 TB331 TQ174
所属栏目
基金项目 教育部科学技术重点研究资助项目(105123)
收稿日期 2006/2/9
修改稿日期 2006/4/17
网络出版日期
作者单位点击查看
备注王天国(1978-),男,湖北十堰人,硕士研究生.
引用该论文: WANG Tian-guo,SHAO Gang-qin,DUAN Xing-long,SHI Xiao-liang,SUN Peng,LI Yong. Preparation of TiAl-based Alloys by High-energy Ball-milling and Hot-pressing Sintering[J]. Materials for mechancial engineering, 2007, 31(1): 32～34
王天国,邵刚勤,段兴龙,史晓亮,孙鹏,李勇. 高能球磨与热压烧结制备TiAl基合金[J]. 机械工程材料, 2007, 31(1): 32～34
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参考文献
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【2】Lee T K,Mosunov E I,Hwang S K.Consolidation of a gamma TiAl-Mn-Mo alloy by elemental powder metallurgy[J].Materials Science & Engineering,1997(4):128-131.
【3】Hsiung L M,Nieh T G.Microstructures and properties of powder metallurgy TiAl alloys[J].Materials Science & Engineering,2004,A364:1-10.
【4】Hoo N,Goodwin P S,Brydson R M,et al.Microstructural control in a gamma-TiAl alloy by MA and HIPING[J].Trade & Industry,1996,48(7):40-42.
【5】王尔德,胡连喜,李小强.高能球磨Ti/Al复合粉体的反应烧结致密行为[J].粉末冶金技术,2003,21(5):259-263.
【6】Dutkiewicz J,Maziarz W,Heinrich H,et al.Structure of Ti-Al-Nb intermetallics produced by mechanical alloying and hot-pressing techniques[J].Meterials Chemistry and Physcis,2003(81):414-416.
【7】Kim Y W.Wrought TiAl Alloy Design[J].Trans Nonferrous Met Soc China,1999,9(suppl.1):298-308.
【8】Prajina B,Pascal B.Nanocrystalline TiAl powders synthesized by high-energy ball milling:effect of milling parameters on yield and contamination[J].Alloys and Compounds,2004,368:187-196.
【9】Bohm A,Kidback B.Investigation of swelling behaviour of Ti-Al elemental powder mixtures during reaction sintering[J].Z Metallkd,1998,89(2):90-94.
【10】Wu Y,Hwang S K,Morris J W,et al.Development and elemental powder metallurgy of a Y-containing two-phase TiAl alloy[J].Metall Trans,2003,34A(10):2077-2087.
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