Effect of heat treatment on microstructure and mechanical properties of cast and directionally solidified high-Nb contained TiAl-based alloys
Source abstract
Abstract
Two kinds of heavy-alloying β-type TiAl-based alloys Ti44Al6Nb1.0Cr2.0V (A1) and Ti44Al6Nb1.0Cr2.0V0.15Y0.1B (A2) are newly designed. They are prepared by vacuum consumable melting (VCM) and cold crucible directional solidification (CCDS). Via the theoretical analysis and tentative experiment, five alternative heat treatment (HT) schedules areproposedand studied that the corresponding microstructure and roomtemperature(RT) tensile property are investigated, and finally theoptimized HT schedulesare acquired. After HT5 (heat preservation in β phase region and at 1290 °C, and then ladder cooling), A2 alloy cast by VCM exhibits a better tensile property with average elongation of 1.20%.For the two CCDS ingots, after HT3 (mainlyannealing at 1280 °C), B2 phase and (B2 + γ) blocky morphology are reduced, the columnar grains and small angle lamellas are reserved,and the tensile property also has a moderate improvement.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · Metallurgical and Alloy Processes · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. 10.1016/j.matlet.2004.11.05310.1016/j.matlet.2004.11.053 ↗
2. 10.1016/j.scriptamat.2011.02.01110.1016/j.scriptamat.2011.02.011 ↗
3. Yang · 2010 · 57
4. 10.1016/j.scriptamat.2005.08.01410.1016/j.scriptamat.2005.08.014 ↗
5. 10.1016/j.scriptamat.2013.02.03510.1016/j.scriptamat.2013.02.035 ↗
6. 10.1016/j.msea.2015.03.04110.1016/j.msea.2015.03.041 ↗
7. 10.1016/S0921-5093(00)01774-310.1016/S0921-5093(00)01774-3 ↗
8. 10.1016/j.actamat.2011.10.00910.1016/j.actamat.2011.10.009 ↗
9. 10.1016/j.actamat.2010.08.04010.1016/j.actamat.2010.08.040 ↗
10. 10.1016/S0167-577X(00)00167-110.1016/S0167-577X(00)00167-1 ↗
11. 10.1016/j.intermet.2011.07.02510.1016/j.intermet.2011.07.025 ↗
12. 10.1016/j.intermet.2011.12.02210.1016/j.intermet.2011.12.022 ↗
13. 10.1016/j.intermet.2012.08.01010.1016/j.intermet.2012.08.010 ↗
14. 10.1016/j.intermet.2011.11.00310.1016/j.intermet.2011.11.003 ↗
15. 10.1016/j.msea.2014.06.11710.1016/j.msea.2014.06.117 ↗
16. 10.1016/j.matlet.2006.04.11510.1016/j.matlet.2006.04.115 ↗
17. 25. Chen R.R. , Dong S.L. , Guo J.J. , Ding H.S. , Su Y.Q. , and Fu H.Z. : Deformation behavior and microstructural evolution of directionally solidified TiAlNb-based alloy during thermo-compression at 1373–1573K. Mater. Des. 84, 118–132 (2015).10.1016/j.matdes.2015.06.117 ↗
18. 10.1016/j.msea.2013.01.07810.1016/j.msea.2013.01.078 ↗
19. 10.1016/j.msea.2013.02.00510.1016/j.msea.2013.02.005 ↗
20. 10.1016/j.msea.2014.07.04010.1016/j.msea.2014.07.040 ↗
21. 10.1016/j.matdes.2013.02.03110.1016/j.matdes.2013.02.031 ↗
22. 10.1016/j.intermet.2012.07.01210.1016/j.intermet.2012.07.012 ↗
23. 10.1016/j.matdes.2010.06.00110.1016/j.matdes.2010.06.001 ↗
24. 10.1007/s11661-001-0136-410.1007/s11661-001-0136-4 ↗
25. 10.1016/S1359-6462(02)00011-810.1016/S1359-6462(02)00011-8 ↗
26. Yang · 2013 · 129
27. 10.1016/S1003-6326(11)60994-110.1016/S1003-6326(11)60994-1 ↗
28. Formation of fine fully-lamellar microstructure of TiAl-based alloy in rapid heating cyclic heat treatment process
29. 10.1016/j.matdes.2014.12.00610.1016/j.matdes.2014.12.006 ↗
30. 10.1016/j.ijheatmasstransfer.2013.03.08110.1016/j.ijheatmasstransfer.2013.03.081 ↗
31. 10.1016/j.matlet.2012.06.01310.1016/j.matlet.2012.06.013 ↗
32. 10.1016/j.intermet.2013.06.00810.1016/j.intermet.2013.06.008 ↗
33. 10.1016/j.matlet.2005.10.03310.1016/j.matlet.2005.10.033 ↗
34. 10.1016/j.msea.2014.07.00310.1016/j.msea.2014.07.003 ↗