Effect of heat treatment on the corrosion behaviour of Ti–5Ta–1.8Nb alloy in boiling concentrated nitric acid
Source abstract
Abstract
Abstract The effect of heat treatment i.e., stress relieving (SR), mill annealing (MA), solution treatment (ST), aging (AG) and overaging (OA) on the corrosion behaviour of Ti–5%Ta–1.8%Nb alloy in nitric acid medium has been studied. The corrosion rates in liquid, vapour and condensate phases of boiling 11.5 M nitric acid determined by weight loss method for Ti–5Ta–1.8Nb was much lower compared to that of commercial purity titanium. The corrosion rate in condensate phase was higher than that in liquid and vapour phases. This has been explained by considering the formation of protective film on the sample exposed to the liquid and vapour phase and the inhibiting effect of titanium ions in the liquid phase. The microstructures after the various heat treatments consisted of different proportions of equiaxed and acicular α, martensite (α′) and retained β phases. The homogeneous equiaxed α phase in OA and AG conditions provided good corrosion resistance compared to acicular α or α′ phase in other heat treated conditions. Potentiodynamic anodic polarisation studies indicated spontaneous passivation in 11.5 M nitric acid.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Metal and Thin Film Mechanics · Titanium Alloys Microstructure and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Mathew Donachie · 2000
2. A. Ravi Shankar, R. Mythili, V.R. Raju, S. Saroja, R.K. Dayal, M. Vijayalakshmi, V.S. Raghunathan, R. Balasubramaniam, L.K. Singhal, in: Baldev Raj, K. Bhanu Sankara Rao, P. Shankar, N. Murali (Eds.), Proceedings of the Conference on Materials and Technologies for Nuclear Fuel Cycle, December 15–16, SERC, Chennai, 2003, p. C-7.
3. Steele · Chem. Eng. Res. Des. · 1987 · 65 · 375
4. Furuya · ISIJ Int. · 1991 · 31 · 18910.2355/isijinternational.31.189 ↗
5. K. Kiuchi, H. Hayakawa, Y. Takagi, M. Kikuchi, in: Proceedings of the Fourth International Conference on Nuclear Fuel Reprocessing and Waste Management, 3, 1994 .
6. Mudali · J. Nucl. Mater. · 1993 · 203 · 7310.1016/0022-3115(93)90432-X ↗
7. K. Hosoi, T. Yokosuka, T. Honda, T. Yoshida, I. Masaoka, Y. Sasada, in: Proceedings of the Third International Conference on Nuclear Fuel Reprocessing and Waste Management, vol. 2, 1991, p. 1060.
8. Y. Kuriki, M. Tamura N. Yamanouchi, K. Kiuchi, in: Proceedings of the Third International Conference on Nuclear Fuel Reprocessing and Waste Management, vol. 2, 1991, p. 1049.
9. K. Kiuchi, N. Yamanouchi, M. Kikuchi, Y. Kuriki, in: Proceedings of the Third International Conference on Nuclear Fuel Reprocessing and Waste Management, vol. 2, 1991, p. 549.
10. K. Kiuchi, N. Yamanouchi, M. Kikuchi, Y. Kuriki, in: Proceedings of the Third International Conference on Nuclear Fuel Reprocessing and Waste Management, vol. 2, 1991, p. 1054.
11. M. Onoyama, M. Nakata and Y. Hirose and Y. Nakagawa, in: Proceedings of the Third International Conference on Nuclear Fuel Reprocessing and Waste Management, vol. 2, 1991, p. 1066.
12. Raj · Sadhana · 2000 · 25 · 51910.1007/BF02703505 ↗
13. Mudali · 1998 · 7.3.1
14. Kapoor · J. Nucl. Mater. · 2003 · 322 · 3610.1016/S0022-3115(03)00302-7 ↗
15. R. Mythili, S. Saroja, M. Vijayalakshmi, V.S. Raghunathan, in: Baldev Raj, K. Bhanu Sankara Rao, P. Shankar, N. Murali (Eds.), Proceedings of the Conference on Materials and Technologies for Nuclear Fuel Cycle, December 15–16, SERC, Chennai, 2003, p. C-29.
16. A. Ravi Shankar, Corrosion behaviour of Ti-5Ta-1.8Nb alloy in nitric acid medium for fast breeder test reactor fuel reprocessing applications, M. Tech thesis, Indian Institute of Technology, Kanpur, July 2004.
17. Neville · J. Light Metals · 2001 · 1 · 11910.1016/S1471-5317(01)00005-0 ↗
18. Metals Handbook, 9th Ed., Corrosion, vol. 13, ASM International, Metals Park, OH, 1987, p. 669.
19. R. Mythili, S. Saroja, M. Vijayalakshmi, V.S. Raghunathan, in: Baldev Raj, K. Bhanu Sankara Rao, P. Shankar, N. Murali (Eds.), Proceedings of the Conference on Materials and Technologies for Nuclear Fuel cycle, December 15–16, SERC, Chennai, 2003, p. C-24.
20. Fukuzuka · 1980 · 2685
21. IMI Report: Technical report on Corrosion resistance of Titanium, Imperial Metal Industries, Witton, UK.
22. Kajimura · Corros. Sci. · 1990 · 31 · 26110.1016/0010-938X(90)90117-N ↗