Volume 12 - Fractography Part 7 pps

... 580 512 (c) 77 L p (mm) L ' p 66.6 84.8 106 .7 (b) 60 N L (mm -1 [N' L ] φ (a) 0. 073 1 0.0465 0.0 37 -4 9 N S (mm -2 ) N' A 3.45 × 10 -3 1 .73 × 10 -3 1.95 × 10 -3 ... values Ref Al-4Cu 1.48 0-2 .390 18, 69 X7091 aluminum alloy 1 .1 2- 1.31 81 Ti-24V 1.064 82 Ti-28V 1.06 0-1 .1 47 16 4340 steels 1.44 7- 1 .908 24,...

Ngày tải lên: 10/08/2014, 12:22

... of an annealed Ti-6Al-2Sn-4Zr-6Mo alloy exposed for various times at 70 0 °C (129 0 °F) in air is illustrated in Fig. 77 . As seen in Fig. 77 (b), the oxide formed after only a 3- min exposure already ... Vol 23, 1 975 , p 65 3-6 66 56. J.A. Williams, Acta Metall., Vol 15, 19 67, p 111 9- 1124 , 155 9-1 562 57. C.C. Law and M.J. Blackburn, Metall. Trans. A, Vol 11A (No....

Ngày tải lên: 10/08/2014, 12:22

... Metall. Trans., Vol 7A, July 1 976 , p 96 7- 9 75 458. H.J. Rack and P.H. Holloway, Grain Boundary Precipitation in 18Ni-Maraging Steels, Metall. Trans., Vol 8A, Aug 1 977 , p 131 3-1 315 459. A.J. ... 1983, p 37 1-3 98 469. P. Jacobsson et al., Kinetics and Hardening Mechanism of the 475 °C Embrittlement in 18Cr- 2Mo Ferritic Steels, Metall. Trans., Vol 6A, Aug 1 975 , p...

Ngày tải lên: 10/08/2014, 12:22

... I/stage III propagation. 13× (J.M. Morris, U.S. Department of Transportation)

Ngày tải lên: 10/08/2014, 13:20

... Figure 71 9 shows a fracture in the head of a valve with a hardness of 37 HRC. The fatigue-crack origin is at right, at the head-stem juncture. Note the peeled surface layer. Fig. 71 7 and 71 8: ... iron-aluminum alloys, especially those with higher aluminum contents. Shown here are fractographs of the flat fractures from tensile samples of an experimental iron-aluminum alloy (Fe-8Al-...

Ngày tải lên: 10/08/2014, 13:20

... wheel half, as shown in Fig. 970 . See also Fig. 972 and 973 . Fig. 970 : ~0. 17 . Fig. Fig. 1046 Corrosion-fatigue fracture in a specimen of aluminum alloy 70 7 5- T6 that was tested in a 3.5% ... "b." ~0.4× Fig. 1 077 Portion of a broken aircraft landing-gear actuator beam of Al alloy 70 79-T6, showing stress- corrosion fractures (at arrow). 0. 17 of the fracture sur...

Ngày tải lên: 10/08/2014, 13:20

... X, χ • • , ψ • • Ω, ω • μ • tcp • • TD • • TEM • • TME • • TTS • • TW-C • • TW-T • • TW-TC • • UNS • • UTS • • V • • vol • • vol% • • W • • W • • W a • • ... OD • • oz • • p • • P • • • • Pa • • p-c • • PDF • • > • • • • • • • • • • • • < • • • • • • ± • • - • • × • • · • • • • / • • % • • + • .....

Ngày tải lên: 10/08/2014, 13:20

... Stadtler (196 9-1 972 ) (Member, 196 2-1 972 ) • R. Ward (1 97 6-1 978 ) (Member, 1 97 2-1 978 ) • M.G.H. Wells (1981) (Member, 1 97 6-1 981) • D.J. Wright (196 4-1 965) (Member, 195 9-1 9 67) Staff This volume was ... 1 97 4-1 980) • J.L. McCall (1982) (Member, 1 97 7- 1 982) • W.J. Merten (192 7- 1 930) (Member, 192 3-1 933) • N.E. Promisel (195 5-1 961)...

Ngày tải lên: 10/08/2014, 12:22

... 530 171 . N. Nielsen, J. Mater., Vol 5, 1 970 , p 79 4 172 . J.C. Scully, Corros. Sci., Vol 7, 19 67, p 1 97 173 . A.A. Seys, M.F. Brabers, and A.A. Van Haute, Corrosion, Vol 30, 1 974 , 47 174 . ... Metall., Vol 27, 1 979 , p 1-1 5 65. D. Hull and D.E. Rimmer, Philos. Mag., Vol 4, 1959, p 67 3-6 87 66. R. Raj, H.M. Shih, and H.H. Johnson, Scr. Metall., Vol 11, 1 97...

Ngày tải lên: 10/08/2014, 12:22

... produce a completely brittle cleavage fracture, for example, the -7 3- °C (-1 0 0- °F) samples of the plates finish rolled at 70 7 and 538 °C (1305 and 1000 °F). Fig. 42 Transition of fracture ... in a cup-and-cone fracture or by an alternate slip method producing a double-cup fracture. Cup-and-cone fractures are observed in ductile iron-base alloys, brass, and Duralumin; d...

Ngày tải lên: 10/08/2014, 12:22