Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting

Publication typeJournal Article
Publication date2022-11-01
scimago Q1
wos Q1
SJR1.955
CiteScore12.7
Impact factor7.0
ISSN09215093, 18734936
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
This study investigated the effect of heat treatment on the microstructure and creep behavior of Ti–48Al–2Cr–2Nb alloy prepared by selective electron beam melting. The microstructure of the as-built and annealed TiAl alloys exhibited near γ structure and fully (α 2 /γ) lamellar structures , respectively. The creep properties were evaluated on the as-built and annealed TiAl alloys under a 250–300 MPa creep stress at 800 °C. The results showed that the creep property was improved significantly by post-heat treatment. The creep rupture life of heat-treated TiAl alloy was 1.6, 2.2, and 2.4 times that of as-built TiAl alloy under the stress of 250, 275, and 300 MPa at 800 °C, respectively. The creep stress exponents of the as-built TiAl alloy and heat-treated alloy were calculated and they were 8.94 and 5.96, respectively. Characterizing the fracture surfaces and deformed microstructure after the creep tests, the as-built alloy exhibited ductile fracture characteristics with numerous dimples. Whereas the heat-treated TiAl alloy displayed brittle fracture characteristics. Finally, the creep fracture behavior was discussed in detail.
Found 
Found 

Top-30

Journals

1
2
3
4
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
4 publications, 21.05%
Journal of Materials Research and Technology
4 publications, 21.05%
Vacuum
3 publications, 15.79%
Corrosion Science
1 publication, 5.26%
Intermetallics
1 publication, 5.26%
Materials and Design
1 publication, 5.26%
Metals
1 publication, 5.26%
Materials Today Communications
1 publication, 5.26%
Journal of Materials Engineering and Performance
1 publication, 5.26%
Materials Characterization
1 publication, 5.26%
Journal of Alloys and Compounds
1 publication, 5.26%
1
2
3
4

Publishers

2
4
6
8
10
12
14
16
18
Elsevier
17 publications, 89.47%
MDPI
1 publication, 5.26%
Springer Nature
1 publication, 5.26%
2
4
6
8
10
12
14
16
18
  • We do not take into account publications without a DOI.
  • Statistics recalculated weekly.

Are you a researcher?

Create a profile to get free access to personal recommendations for colleagues and new articles.
Metrics
19
Share
Cite this
GOST |
Cite this
GOST Copy
Yue H. et al. Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting // Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing. 2022. Vol. 859. p. 144224.
GOST all authors (up to 50) Copy
Yue H., Liang Z., Zhao F., Fang L., Chen P., Xu L., Xiao S. L., Li R. Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting // Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing. 2022. Vol. 859. p. 144224.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1016/j.msea.2022.144224
UR - https://doi.org/10.1016/j.msea.2022.144224
TI - Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting
T2 - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
AU - Yue, Hangyu
AU - Liang, Zhiwei
AU - Zhao, Feng
AU - Fang, Lijia
AU - Chen, Pei
AU - Xu, Lijuan
AU - Xiao, S L
AU - Li, Ruifeng
PY - 2022
DA - 2022/11/01
PB - Elsevier
SP - 144224
VL - 859
SN - 0921-5093
SN - 1873-4936
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2022_Yue,
author = {Hangyu Yue and Zhiwei Liang and Feng Zhao and Lijia Fang and Pei Chen and Lijuan Xu and S L Xiao and Ruifeng Li},
title = {Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting},
journal = {Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing},
year = {2022},
volume = {859},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016/j.msea.2022.144224},
pages = {144224},
doi = {10.1016/j.msea.2022.144224}
}