Paper Title:
Microstructure Control of High Nitrogen Alpha + Beta Type Titanium Alloy
  Abstract

Solution nitriding and aging treatment were applied to Ti-4mass%Cr alloy in order to fabricate a ductile high-nitrogen titanium alloy with fine (α + β) structure. The solution-nitrided specimen withα’ martensitic structure was significantly hardened by solid solution strengthening by the absorbed nitrogen. During the aging treatment, fine β grains with a size of 1 microns in thickness precipitated along the martensite-plate boundaries. Although the specimen was softened to some extent after the aging treatment, the hardness is kept much higher than that of the aged Ti-4mass%Cr alloy without solution nitriding. This indicates that the nitrogen is still in solid solution of α phase even after the aging treatment, and contributes to strengthening of the fine-structured Ti-4mass%Cr-N alloy.

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
193-196
DOI
10.4028/www.scientific.net/KEM.345-346.193
Citation
T. Ando, K. Nakashima, T. Tsuchiyama, S. Takaki, "Microstructure Control of High Nitrogen Alpha + Beta Type Titanium Alloy", Key Engineering Materials, Vols. 345-346, pp. 193-196, 2007
Online since
August 2007
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Price
$32.00
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