Acta Metallurgica Sinica (English Letters) ›› 1998, Vol. 11 ›› Issue (4): 261-264.

• Research paper • Previous Articles     Next Articles

Nd-RICH PHASE PARTICLES IN AS-FORGED Ti-5Al-4Sn-2Zr-1Mo-0.25Si-1Nd ALLOY

G.P.Li;D.Li; Y.Y.Liu; S.X. Guan and Q.J.Wang (Department of Titanium Alloys, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110015, China)   

  • Received:1998-08-25 Revised:1998-08-25 Online:1998-08-25 Published:2009-10-10

Abstract: TEM examination proves that the second phase particle within the as-forged Ti-55alloy consists of either bright or dark "matrix" (nano-Nd3Sn) and some small dark blocks (SnO) dispersed in the "matrix". The HREM observation shows that the nanoNd3Sn phase is roughly spherical and about 3-15nm in diameter, and the grain boundaries with atout 1nm width are "gas-like" structure.

Key words: Ti alloy, Nd-rich phase, electron microscopy