TY - GEN
T1 - Precipitations characteristics of Ti-60 alloy during long-term aging treatment at 600 °c
AU - Sun, Feng
AU - Li, Jinshan
AU - Kou, Hongchao
AU - Tang, Bin
AU - Chang, Hui
AU - Cai, Jianming
AU - Zhou, Lian
PY - 2012
Y1 - 2012
N2 - During long-term aging treatment at 600 °C, α2 phase and silicide are characterized to realize the microstructure stability of the high temperature titanium alloy Ti-60. Sizes, distribution and crystallographic of precipitations are analyzed through TEM after aging treatment from 8 hours to 100 hours. Inside α platelets, compact α2 phase precipitates coherently,the sizes and distances of the particles increase with the aging time. The average size of the particles approximates 20 nm after 100 hours of aging. On the other hand,silicides as (Ti,Zr)6Si3 mainly precipitate along α α plate boundaries in addition to some dislocations. The long and short axis of the ellipsoid silicide particles are less than 80 nm and 160 nm after 100 hours of aging, respectively. Enrichment of zirconium in silicide is proved through EDS.
AB - During long-term aging treatment at 600 °C, α2 phase and silicide are characterized to realize the microstructure stability of the high temperature titanium alloy Ti-60. Sizes, distribution and crystallographic of precipitations are analyzed through TEM after aging treatment from 8 hours to 100 hours. Inside α platelets, compact α2 phase precipitates coherently,the sizes and distances of the particles increase with the aging time. The average size of the particles approximates 20 nm after 100 hours of aging. On the other hand,silicides as (Ti,Zr)6Si3 mainly precipitate along α α plate boundaries in addition to some dislocations. The long and short axis of the ellipsoid silicide particles are less than 80 nm and 160 nm after 100 hours of aging, respectively. Enrichment of zirconium in silicide is proved through EDS.
KW - Long-term aging treatment
KW - Microstructural stability
KW - Near-α titanium alloy
KW - Ordered α phase
KW - Silicide
UR - http://www.scopus.com/inward/record.url?scp=84883084641&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84883084641
SN - 9787030338990
T3 - Ti 2011 - Proceedings of the 12th World Conference on Titanium
SP - 609
EP - 613
BT - Ti 2011 - Proceedings of the 12th World Conference on Titanium
T2 - 12th World Conference on Titanium, Ti 2011
Y2 - 19 June 2011 through 24 June 2011
ER -