Unusual macroscopic shearing patterns observed in metals processed by high-pressure torsion

Y. Cao; M. Kawasaki; Y. B. Wang; S. N. Alhajeri; X. Z. Liao; W. L. Zheng; S. P. Ringer; Y. T. Zhu; T. G. Langdon

doi:10.1007/s10853-010-4485-5

journal article·2010-09

Unusual macroscopic shearing patterns observed in metals processed by high-pressure torsion

Y. Cao, M. Kawasaki, Y. B. Wang, S. N. Alhajeri, X. Z. Liao, W. L. Zheng, S. P. Ringer, Y. T. Zhu, T. G. Langdon

Journal of Materials Science· Volume 45· Issue 17

Publisher page

Source abstract

Abstract

A duplex stainless steel was processed by high-pressure torsion (HPT) and then examined by optical microscopy. The results reveal unusual flow patterns including double-swirl strains, shear vortices, and the presence of significant local turbulence. Similar flow behavior was also visible in disks of high-purity aluminum and a Zn–22%Al eutectoid alloy. These complex flow patterns and the presence of double-swirls are consistent with the presence of a Kelvin–Helmholtz instability during HPT processing where this may arise if there are local shear velocity gradients between adjacent positions within the HPT disks.

Source: openaire · Quality: candidate unverified · Source record ↗

Research context

Metals & alloys

OpenAlex topics: Microstructure and mechanical properties · Metal Forming Simulation Techniques · Metallurgy and Material Forming

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (34)

Show source-provided references

1. Valiev RZ, Islamgaliev RK, Alexandrov IV (2000) Prog Mater Sci 45:10310.1016/S0079-6425(99)00007-9 ↗

2. Valiev RZ, Langdon TG (2006) Prog Mater Sci 51:88110.1016/j.pmatsci.2006.02.003 ↗

3. Zhilyaev AP, Langdon TG (2008) Prog Mater Sci 53:89310.1016/j.pmatsci.2008.03.002 ↗

4. Zhilyaev AP, Kim BK, Nurislamova GV, Baró MD, Szpunar JA, Langdon TG (2002) Scr Mater 48:57510.1016/S1359-6462(02)00018-0 ↗

5. Zhilyaev AP, Kim BK, Szpunar JA, Baró MD, Langdon TG (2005) Mater Sci Eng A391:37710.1016/j.msea.2004.09.030 ↗

6. Valiev RZ, Ivanisenko YuV, Rauch EF, Baudelet B (1996) Acta Mater 44:470510.1016/S1359-6454(96)00156-5 ↗

7. Wetscher F, Vorhauer A, Stock R, Pippan R (2004) Mater Sci Eng A387–389:80910.1016/j.msea.2004.01.096 ↗

8. Wetscher F, Pippan R, Sturm S, Kauffmann F, Scheu C, Dehm G (2006) Metall Mater Trans 37A:196310.1007/s11661-006-0138-3 ↗

9. Zhilyaev AP, Lee S, Nurislamova GV, Valiev RZ, Langdon TG (2001) Scr Mater 44:275310.1016/S1359-6462(01)00955-1 ↗

10. Zhilyaev AP, Nurislamova GV, Kim BK, Baró MD, Szpunar JA, Langdon TG (2003) Acta Mater 51:75310.1016/S1359-6454(02)00466-4 ↗

11. Estrin Y, Molotnikov A, Davies CHJ, Lapovok R (2008) J Mech Phys Solids 56:118610.1016/j.jmps.2007.10.004 ↗

12. Cao Y, Wang YB, Alhajeri SN, Liao XZ, Zheng WL, Ringer SP, Langdon TG, Zhu YT (2010) J Mater Sci 45:765. doi: 10.1007/s10853-009-3998-210.1007/s10853-009-3998-2 ↗

13. Kawasaki M, Ahn B, Langdon TG (2010) Acta Mater 58:91910.1016/j.actamat.2009.10.007 ↗

14. Kawasaki M, Langdon TG (2008) Mater Sci Eng A498:34110.1016/j.msea.2008.08.021 ↗

15. Xu C, Horita Z, Langdon TG (2007) Acta Mater 55:20310.1016/j.actamat.2006.07.029 ↗

16. Xu C, Horita Z, Langdon TG (2008) Acta Mater 56:516810.1016/j.actamat.2008.06.036 ↗

17. Edalati K, Fujioka T, Horita Z (2008) Mater Sci Eng A497:16810.1016/j.msea.2008.06.039 ↗

18. Ito Y, Horita Z (2009) Mater Sci Eng A503:3210.1016/j.msea.2008.03.055 ↗

19. Furukawa M, Ma Y, Horita Z, Nemoto M, Valiev RZ, Langdon TG (1998) Mater Sci Eng A241:12210.1016/S0921-5093(97)00481-4 ↗

20. Edalati K, Horita Z, Langdon TG (2009) Scr Mater 60:910.1016/j.scriptamat.2008.08.042 ↗

21. Zhang HW, Zhang Z, Chen JT (2007) J Mater Process Technol 183:6210.1016/j.jmatprotec.2006.09.027 ↗

22. Guduru PR, Ravichandran G, Rosakis AJ (2001) Phys Rev E 64:03612810.1103/PhysRevE.64.036128 ↗

23. Rangel RH, Sirignano WA (1988) Phys Fluids 31:184510.1063/1.866682 ↗

24. Fernando HJS (1991) Ann Rev Fluid Mech 23:45510.1146/annurev.fl.23.010191.002323 ↗

25. Funada T, Joseph DD (2001) J Fluid Mech 445:26310.1017/S0022112001005572 ↗

26. Nakamura TKM, Fujimoto M (2008) Phys Rev Lett 101:16500210.1103/PhysRevLett.101.165002 ↗

27. Wright S, Presura R, Esaulov A, Neff S, Plechaty C, Martinez D, Haboub A (2009) Astrophys Space Sci 322:20110.1007/s10509-008-9943-z ↗

28. Yamamoto T (2009) J Geophys Res 114:A06207

29. De Silva IPD, Fernando HJS, Eaton F, Hebert D (1996) Earth Planet Sci Lett 143:20710.1016/0012-821X(96)00139-2 ↗

30. Plant RS, Keith GJ (2007) Boundary-Layer Meterol 122:110.1007/s10546-006-9089-x ↗

31. van Haren H, Gostiaux L (2010) Geophys Res Lett 37:L03605

32. Vorhauer A, Pippan R (2004) Scr Mater 51:92110.1016/j.scriptamat.2004.04.025 ↗

33. Edalati K, Fujioka T, Horita Z (2009) Mater Trans 50:4410.2320/matertrans.MD200812 ↗

34. Xu C, Horita Z, Langdon TG (2010) Mater Trans 51:210.2320/matertrans.MB200910 ↗