LI Dong ZHOU Jing CHANG Xin GUAN Shaoxuan Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
Study was made of the behaviour of ordering transformation in Ti_3AI-Nb alloy,including the ordering at high temperatures,the transformation of high temperature β-phase during cooling,and the decomposition of metastable β-phase during aging.The results show that the ordered primary α_2 and high temperature β in alloy form at 1060℃.The transformation of high temperature β-phase proceed by β→α_2+ω type during cooling,and the decomposition of metastable β and ω type proceeded by(β+ω)_(metustabte)→(α_2+β)_(stable)during aging at 700℃.
关键词:
Ti_3Al-Nb alloy
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null
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null
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null
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李东
,
周敬
,
常昕
,
关少轩
金属学报
研究了Ti_3Al-Nb合金在高温下的有序化,冷却过程高温β相转变及时效过程亚稳定β相分解的行为,结果指出,在1060℃固溶处理时,合金形成初生α_2和β高温有序相;在固溶处理后的冷却过程中,合金发生β→α_2+ω型转变;在700℃时效过程中,合金发生(β+ω型)亚稳→(α_2+β)稳定分解。
关键词:
Ti_3Al-Nb合金
,
ordering transformation
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α_2
,
β
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ω
