,
volume 859
,
pages 144224
Effect of heat treatment on the microstructure and creep properties of Ti–48Al–2Cr–2Nb alloy produced by selective electron beam melting
Hangyu Yue
1, 2
,
Zhiwei Liang
3
,
Feng Zhao
4
,
Lijia Fang
4
,
Pei Chen
4
,
Lijuan Xu
3
,
S L Xiao
3
,
Ruifeng Li
2
4
HFYC (Zhenjiang) Additive Manufacturing Co., Ltd, Zhenjiang, 212003, China
|
Publication type: Journal Article
Publication date: 2022-11-01
scimago Q1
wos Q1
SJR: 1.955
CiteScore: 12.7
Impact factor: 7.0
ISSN: 09215093, 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.
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Metrics
19
Total citations:
19
Citations from 2024:
16
(84.21%)
The most citing journal
Citations in journal:
4
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GOST
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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)
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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.
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 -
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}
}