Dislocation decorrelation and relationship to deformation microtwins during creep of a γ′ precipitate strengthened Ni-based superalloy

Acta Materialia

Volumn 59, Issue 19, 2011, Pages 7325-7339

  Unocic, R R ^a,b   Zhou, N ^b   Kovarik, L ^b,c   Shen, C ^d   Wang, Y ^b   Mills, M J ^b  

^a OAK RIDGE NATIONAL LABORATORY   (United States)

^b The Ohio State University   (United States)

^c PACIFIC NORTHWEST NATIONAL LABORATORY   (United States)

^d GE GLOBAL RESEARCH   (United States)

Author keywords

Atomic ordering; Creep; Diffusion; Microtwinning; Shockley partial dislocations

Indexed keywords

APPLIED STRESS; ATOMIC ORDERING; CREEP DEFORMATIONS; DECORRELATIONS; DEFORMATION MODES; DEFORMATION SUBSTRUCTURES; FINE-CHANNEL; GLIDE PLANES; HIGH TEMPERATURE CREEP; INTRINSIC STACKING FAULT; MATRIX; MICROSTRUCTURAL FEATURES; MICROTWINNING; MICROTWINS; NI-BASED SUPERALLOYS; OROWAN LOOPING; PHASE-FIELD SIMULATION; SHOCKLEY PARTIAL DISLOCATIONS; SHOCKLEY PARTIALS; STACKING FAULT ENERGIES; STRESS CONCENTRATORS; TEM OBSERVATIONS; THEORETICAL MODELING;

BORIDES; CARBIDES; COMPUTER SIMULATION; CREEP TESTING; GRAIN BOUNDARIES; MICROSTRUCTURAL EVOLUTION; STACKING FAULTS; STAINLESS STEEL; STRESS CONCENTRATION; SUPERALLOYS; TRANSMISSION ELECTRON MICROSCOPY;

CREEP;

EID: 80053175815     PISSN: 13596454     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.actamat.2011.07.069     Document Type: Article

References (45)

1. T.M. Pollock, and A.S. Argon Acta Metall Mater 42 1 1992 1
2. G.R. Levarant, and B.H. Kear Metall Trans 1 2 1970 491
3. B.H. Kear, J.M. Oblak, and A.F. Giamei Metall Trans 1 9 1970 2477
4. T. Link, and M. Feller-Kniepmeier Metall Trans 23A 1992 99
5. C.M.F. Rae, and R.C. Reed Acta Mater 55 3 2007 1067
6. P. Caron, T. Khan, and P. Veyssiere Philos Mag A 57 1988 859
7. B. Decamps, A.J. Morton, and M. Condat Philos Mag A 64 1991 641
8. R. Bonnet, and A. Ati Scripta Metall Mater 25 1991 1553
9. Guimier A, Strudel JL. In: Proceedings of the 2nd international conference on the strength of metals and alloys, vol. 3; 1970. p. 1145.
10. M.G. Ardakani, M. McLean, and B.A. Shollock Acta Mater 47 9 1999 2593
11. D.M. Knowles, and S. Gunturi Mater Sci Eng A 328 2002 223
12. D.M. Knowles, and Q.Z. Chen Mater Sci Eng A 340 2003 88
13. K. Kakehi Scripta Mater 41 5 1999 461
14. G.B. Viswanathan, P.M. Sarosi, M.F. Henry, D.D. Whitis, W.W. Milligan, and M.J. Mills Acta Mater 53 2005 3041
15. G.B. Viswanathan, S. Karthikeyan, P.M. Sarosi, R.R. Unocic, and M.J. Mills Philos Mag 86 29-31 2006 4823
16. R.R. Unocic, G.B. Viswanathan, P.M. Sarosi, S. Karthikeyan, J. Li, and M.J. Mills Mater Sci Eng A 483/484 2008 25
17. M. Legros, N. Clement, P. Caron, and A. Coujou Mater Sci Eng A 337 2002 160
18. R.W.K. Honeycombe The plastic deformation of metals 1984 Edward Arnold London
19. J.W. Christian, and S. Mahajan Prog Mater Sci 39 1/2 1995 1
20. M. Kolbe Mater Sci Eng A 319 2001 383
21. S. Karthikeyan, R.R. Unocic, P.M. Sarosi, G.B. Viswanathan, D.D. Whitis, and M.J. Mills Scripta Mater 54 6 2006 1157
22. L. Kovarik, R.R. Unocic, J. Li, P.M. Sarosi, C. Shen, and Y. Wang Prog Mater Sci 54 6 2009 839
23. N. Zhou, C. Shen, M.J. Mills, J. Li, and Y. Wang Acta Mater 59 9 2011 3484
24. Mourer DP, Williams JL. In: Green KA, Pollock TM, Harada H, Howson TE, Reed RC, Schirra JJ, editors. 10th International symposium on superalloys, Champion, PA; 2004. p. 401.
25. P.M. Sarosi, B. Wang, J.P. Simmons, Y. Wang, and M.J. Mills Scripta Mater. 57 2007 767
26. Wlodek ST, Kelly M, Alden DA. In: Kissinger RD, Deye DJ, Anton DL, Cetel AD, Nathal MV, Pollock, et al., editors. 8th International symposium on superalloys, Champion, PA; 1996. p. 129.
27. P.M. Sarosi, G.B. Viswanathan, and M.J. Mills Scripta Mater 55 2006 727
28. S.T. Wlodek G.E. Fuchs, K.A. Dannemann, T.A. Deragon, Long term stability of high temperature materials 1999 TMS Warrendale (PA) 3
29. M.J. Donachie, and S.J. Donachie Superalloys: a technical guide 2002 ASM International Materials Park (OH)
30. D.B. Williams, and C.B. Carter Transmission electron microscopy 1996 Plenum Press New York p. 381
31. S. Raujol, M. Benyoucef, D. Locq, P. Caron, F. Pettinari, and N. Clement Philos Mag 86 9 2006 1189
32. V. Vitek Philos Mag 18 154 1968 773
33. C. Shen, and Y. Wang Acta Mater 51 9 2003 2595
34. C. Shen, and Y. Wang Acta Mater 52 3 2004 683
35. M. Jouiad, E. Pettinari, N. Clement, and A. Coujou Philos Mag 79 11 1999 2591
36. E. Orowan, and F. Zeits Physik 89 1934 605 659
37. Y.U. Wang, T.M. Jin, A.M. Cuitino, and A.G. Khachturyan Acta Mater 49 10 2001 1847
38. F.X. Kayser, and C. Stassis Phys Stat Sol 64 1 1981 335
39. F. Pettinari, J. Douin, G. Saada, P. Caron, A. Coujou, and N. Clement Mater Sci Eng 325 2002 511
40. J. Douin, F. Pettinari-Sturmel, and A. Coujou Acta Mater 55 2007 6453
41. Unocic RR, Kovarik L, Shen C, Sarosi PM, Wang Y, Li J, et al. In: Reed RC, Green KA, Gabb TP, Fahrmann MG, Huron ES, editors. 11th International symposium on superalloys, Champion, PA; 2008. p. 377.
42. J.A. Venables Philos Mag 6 1961 379
43. S. Mahajan, and G.Y. Chin Acta Metall 21 1973 1353
44. P. Pirouz Scripta Metall 21 1987 1463
45. Unocic RR. PhD dissertation. The Ohio State University; 2008.