Abstract
In this study, the high-temperature microstructural characteristics of the Ti-5Al-1Sn-1Fe-1Cr (Ti-5111) alloy were determined by optical microscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. During solution treatment between 800 and 1000 °C, the phase transformation sequence of the alloy was found to be (α + β) → (α + α′ + β) → (α + α′ + α″ + residual β) → (α′ + β). The residual β phase subsequently transforms to the α″ phase during quenching. The driving force for this transformation is the cooling rate. The martensite starting point (Ms) and β transus temperature of the Ti-5111 alloy are nearly 860 and 960 °C, respectively. These values are lower than those of the Ti-6Al-4V alloy. Moreover, it is believed that the concentration of Al in α′ martensite plays a crucial role in the formation of the twin-type martensite.
| Original language | English |
|---|---|
| Pages (from-to) | 171-175 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| Volume | 499 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jun 11 2010 |
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Keywords
- High-temperature microstructure
- Phase transformation
- Titanium alloy
- Transmission electron microscopey
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Chemistry
- Metals and Alloys
Cite this
High-temperature microstructural characteristics of a novel biomedical titanium alloy. / Chang, Ming Chih; Luo, Chin Wan; Huang, Mao Suan; Ou, Keng Liang; Lin, Li Hsiang; Cheng, Hsin Chung.
In: Journal of Alloys and Compounds, Vol. 499, No. 2, 11.06.2010, p. 171-175.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-temperature microstructural characteristics of a novel biomedical titanium alloy
AU - Chang, Ming Chih
AU - Luo, Chin Wan
AU - Huang, Mao Suan
AU - Ou, Keng Liang
AU - Lin, Li Hsiang
AU - Cheng, Hsin Chung
PY - 2010/6/11
Y1 - 2010/6/11
N2 - In this study, the high-temperature microstructural characteristics of the Ti-5Al-1Sn-1Fe-1Cr (Ti-5111) alloy were determined by optical microscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. During solution treatment between 800 and 1000 °C, the phase transformation sequence of the alloy was found to be (α + β) → (α + α′ + β) → (α + α′ + α″ + residual β) → (α′ + β). The residual β phase subsequently transforms to the α″ phase during quenching. The driving force for this transformation is the cooling rate. The martensite starting point (Ms) and β transus temperature of the Ti-5111 alloy are nearly 860 and 960 °C, respectively. These values are lower than those of the Ti-6Al-4V alloy. Moreover, it is believed that the concentration of Al in α′ martensite plays a crucial role in the formation of the twin-type martensite.
AB - In this study, the high-temperature microstructural characteristics of the Ti-5Al-1Sn-1Fe-1Cr (Ti-5111) alloy were determined by optical microscopy, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. During solution treatment between 800 and 1000 °C, the phase transformation sequence of the alloy was found to be (α + β) → (α + α′ + β) → (α + α′ + α″ + residual β) → (α′ + β). The residual β phase subsequently transforms to the α″ phase during quenching. The driving force for this transformation is the cooling rate. The martensite starting point (Ms) and β transus temperature of the Ti-5111 alloy are nearly 860 and 960 °C, respectively. These values are lower than those of the Ti-6Al-4V alloy. Moreover, it is believed that the concentration of Al in α′ martensite plays a crucial role in the formation of the twin-type martensite.
KW - High-temperature microstructure
KW - Phase transformation
KW - Titanium alloy
KW - Transmission electron microscopey
UR - http://www.scopus.com/inward/record.url?scp=77953126998&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953126998&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2010.03.052
DO - 10.1016/j.jallcom.2010.03.052
M3 - Article
AN - SCOPUS:77953126998
VL - 499
SP - 171
EP - 175
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 2
ER -