Paper Title:
Enrichment Behavior of ω Clusters in Cold-Drawn Ti-45Nb Filaments
  Abstract

The enrichment behavior of ω clusters in cold-drawn Ti-45Nb (wt.%) filaments is observed and discussed in this paper. The ω phase precipitates as the colonies of almost the same orientation variants near the grain boundary with the size of single particle less than 3 nm in diameter. The enrichment of ω clusters leads to the formation of embrittlement regions in micron dimension along the grain boundary. After polishing and etching, the embrittlement regions transform into macroscopic necklace-like structure along the grain boundary. Furthermore, the volume fraction and mean width of embrittlement regions are measured accurately as a function of diameters. After recrystallization annealing, the enrichment regions disappear and ω particles equally distribute in the matrix.

  Info
Periodical
Edited by
Enhou Han, Guanghong Lu and Xiaolin Shu
Pages
315-320
DOI
10.4028/www.scientific.net/MSF.689.315
Citation
B. Tang, H. C. Kou, Z. S. Zhu, J. S. Li, G. Q. Shang, L. Zhou, "Enrichment Behavior of ω Clusters in Cold-Drawn Ti-45Nb Filaments", Materials Science Forum, Vol. 689, pp. 315-320, 2011
Online since
June 2011
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