Microstructure and creep behavior of an orthorhombic Ti-25Al-17Nb-1 Mo alloy
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 559-564 |
| Journal / Publication | Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science |
| Volume | 29 |
| Issue number | 2 |
| Publication status | Published - 1998 |
Link(s)
Abstract
Microstructural evolution during three heat-treatment schedules and the terminal microstructures in an orthorhombic alloy of Ti-25Al-17Nb-1Mo were observed and analyzed with optical microscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The creep behavior of the alloy with three different microstructures (a coarse-lath, fine-lath, and fine equiaxed microstructure) was studied over a temperature range of 600 °C to 750 °C and over a stress range of 150 to 400 MPa in air. The steady-state creep rates, apparent stress exponents, and apparent creep activation energies of the various samples have been determined. The results show that creep behaviors in the alloy are strongly influenced by microstructure. The effect on creep by some of the microstructural features, such as the multivariants within the coarse laths and the interfaces of the laths and the equiaxed grains, is also discussed.
Citation Format(s)
Microstructure and creep behavior of an orthorhombic Ti-25Al-17Nb-1 Mo alloy. / Zhang, J. W.; Lee, C. S.; Zou, D. X. et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 29, No. 2, 1998, p. 559-564.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 29, No. 2, 1998, p. 559-564.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
