| Autor: |
LIU Yantao, ZHANG Yongzhong, CHEN Yiqiang, TANG Yangjie |
| Jazyk: |
čínština |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Journal of Aeronautical Materials, Vol 37, Iss 3, Pp 61-67 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1005-5053 |
| DOI: |
10.11868/j.issn.1005-5053.2016.00052 |
| Popis: |
Three different proportions of TA15 and Ti2AlNb alloy powde were premixed and thin-walls with proportions of 40%TA15+60%Ti2AlNb, 50%TA15 +50% Ti2AlNb and 60%TA15+40%Ti2AlNb (mass fraction) were prepared by using laser melting deposition process. The composition, microstructure and mechanical properties of the three thin-walls were analyzed. The results indicate that the compositions of all the three kinds of alloys are uniform. The alloy appears as basketweave microstructure with acicular α phase and α2 phase distributing within primary β/B2 grain. Tensile strength of the three kinds of alloys are 1108 MPa and 1071 MPa, 1105 MPa, and elongation are 3.0%, 2.2% and 3.8% respectively; Tear ridge along α2 phases is visible on tensile fracture surface, and the fracture mode is subject to cleavage fracture. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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