J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (11): 2552-2558.DOI: 10.1016/j.jmst.2019.04.032
• Orginal Article • Previous Articles Next Articles
Liu Z.ab, Zhao Z.B.a*(), Liu J.R.a*(), Wang L.a, Zhu S.X.a, Yang G.c, Gong S.L.c, Wang Q.J.a, ang R.Ya
Received:
2018-12-20
Revised:
2019-03-18
Accepted:
2019-04-10
Online:
2019-11-05
Published:
2019-10-21
Contact:
Zhao Z.B.,Liu J.R.
About author:
1The authors equally contributed to this work.
Liu Z., Zhao Z.B., Liu J.R., Wang L., Zhu S.X., Yang G., Gong S.L., Wang Q.J., ang R.Y. Deformation behaviors of as-built and hot isostatically pressed Ti-6Al-4V alloys fabricated via electron beam rapid manufacturing[J]. J. Mater. Sci. Technol., 2019, 35(11): 2552-2558.
Sample | Yield strength, σ0.2 (MPa) | Ultimate strength, σt (MPa) | Elongation (%) |
---|---|---|---|
As-built | 810 ± 5.0 | 897 ± 4.6 | 11 ± 1.2 |
HIP | 780 ± 1.5 | 876 ± 3.2 | 14 ± 1.9 |
Table 1 Tensile properties of EBRM-produced Ti-6Al-4 V alloy.
Sample | Yield strength, σ0.2 (MPa) | Ultimate strength, σt (MPa) | Elongation (%) |
---|---|---|---|
As-built | 810 ± 5.0 | 897 ± 4.6 | 11 ± 1.2 |
HIP | 780 ± 1.5 | 876 ± 3.2 | 14 ± 1.9 |
Fig. 5. Examples of activated slip systems in the tensile sample after 2.0% plastic deformation. The black and red lines represent calculated traces of prismatic and basal slips, respectively.
Fig. 8. Examples of activated slip systems in the tensile sample after 2.0% plastic deformation (a) and the relative EBSD maps (b). The blue, red, and green lines represent calculated traces of prismatic, basal, and pyramidal slip systems, respectively.
Lath 1 | Lath 2 | Lath 3 | Lath 4 | |||||
---|---|---|---|---|---|---|---|---|
M | μ | M | μ | M | μ | M | μ | |
Prismatic (1-100)[ | 0.47 | 0.36 | - | <0.25 | 0.20 | 0.31 | 0.21 | 0.33 |
Prismatic (1-100)[ | 0.16 | 0.30 | - | <0.25 | 0.35 | 0.47 | 0.35 | 0.38 |
Prismatic (1-100)[ | 0.33 | 0.46 | - | <0.25 | 0.21 | 0.37 | 0.13 | 0.46 |
Prismatic (1-100)[ | 0.87 | 0.48 | 0.92 | 0.40 | 0.86 | 0.35 | 0.92 | 0.43 |
Table 2 Maximum M factor between the (1-100)[11-20] slip system and various slip systems in the other α-laths.
Lath 1 | Lath 2 | Lath 3 | Lath 4 | |||||
---|---|---|---|---|---|---|---|---|
M | μ | M | μ | M | μ | M | μ | |
Prismatic (1-100)[ | 0.47 | 0.36 | - | <0.25 | 0.20 | 0.31 | 0.21 | 0.33 |
Prismatic (1-100)[ | 0.16 | 0.30 | - | <0.25 | 0.35 | 0.47 | 0.35 | 0.38 |
Prismatic (1-100)[ | 0.33 | 0.46 | - | <0.25 | 0.21 | 0.37 | 0.13 | 0.46 |
Prismatic (1-100)[ | 0.87 | 0.48 | 0.92 | 0.40 | 0.86 | 0.35 | 0.92 | 0.43 |
Lath 5 | Lath 6 | |||
---|---|---|---|---|
M | μ | M | μ | |
Prismatic (10-10)[- | 0.11 | 0.35 | 0.50 | 0.29 |
Prismatic (10-10)[- | 0.87 | 0.43 | 0.87 | 0.40 |
Prismatic (10-10)[- | 0.84 | 0.39 | 0.85 | 0.44 |
Prismatic (10-10)[- | 0.21 | 0.27 | 0.20 | 0.26 |
Table 3 Maximum M factor between the (10-10)[-12-10] slip system and various slip systems in the other α-laths.
Lath 5 | Lath 6 | |||
---|---|---|---|---|
M | μ | M | μ | |
Prismatic (10-10)[- | 0.11 | 0.35 | 0.50 | 0.29 |
Prismatic (10-10)[- | 0.87 | 0.43 | 0.87 | 0.40 |
Prismatic (10-10)[- | 0.84 | 0.39 | 0.85 | 0.44 |
Prismatic (10-10)[- | 0.21 | 0.27 | 0.20 | 0.26 |
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