Volume 12 - Fractography Part 15 ppsx

... 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

... titanium, and aluminum alloys is hydrogen embrittlement (Ref 38, 100, 107, 137, 143, 152 , 153 , 154 , 155 , 156 , 157 , 158 , 159 , 160, 161, 162, 163, 164, 165, 166). In these alloys, SCC occurs when the ... 23, 1975, p 65 3-6 66 56. J.A. Williams, Acta Metall., Vol 15, 1967, p 111 9- 1124 , 155 9-1 562 57. C.C. Law and M.J. Blackburn, Metall. Trans. A, Vol 11A (No. 3...

Ngày tải lên: 10/08/2014, 12:22

... μ m) iron-titanium-molybdenum-rich particles were also observed. The larger particles were either titanium- or zirconium-rich, and these may also be an MC-type precipitate. Such grain- boundary ... examination. Figure 4 shows the range of particle sizes and a typical distribution of particles from a fracture surface of an Fe-0.03C-18.5Ni-3Mo-1.4Ti-0.1Al maraging steel specimen that was ....

Ngày tải lên: 10/08/2014, 12:22

... the laboratory. Fig. 228: Fracture surface with chevrons in case- hardened zone pointing to single origin at top. Fine- and coarse-grained structures in case and core regions, respectively, indicate ... from combined stage I/stage III propagation. 13× (J.M. Morris, U.S. Department of Transportation)

Ngày tải lên: 10/08/2014, 13:20

... 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-6Mo-0.8Zr-0.1C). ... grain-boundary triple points. 100×. Fig. 689: Wedge-type cavities (wedge cracks) form at triple points due to grain-boundary sliding and may be promoted by decohesion at interfaces b...

Ngày tải lên: 10/08/2014, 13:20

... (top) and the corrosion-fatigue fracture surface (bottom) of a solution- treated and peak-aged Al-5.6Zn-1.9Mg sample tested in deaerated 0.5 mol NaCl at a cathodic potential of - 1.6 V (SCE). Compare ... Fig. 1098 Fig. 1097 Corrosion-fatigue crack initiation and propagation in a solution-treated and peak-aged Al-4.2Mg-2.1Li P/M alloy tested in deaerated high-purity water. Fig. 109...

Ngày tải lên: 10/08/2014, 13:20

... (194 0-1 942) (Member, 193 7-1 942) • L.B. Case (193 1-1 933) (Member, 192 7-1 933) • T.D. Cooper (198 4-1 986) (Member, 198 1-1 986) • E.O. Dixon (195 2-1 954) (Member, 194 7-1 955) • R.L. Dowdell (193 8-1 939) ... (Member, 194 4-1 951) • L.J. Korb (1983) (Member, 197 8-1 983) • R.W.E. Leiter (196 2-1 963) (Member, 195 5-1 958, 196 0-1 964) • G.V. Luerssen...

Ngày tải lên: 10/08/2014, 12:22

... J.A. Williams, Acta Metall., Vol 15, 1967, p 111 9- 1124 , 155 9-1 562 57. C.C. Law and M.J. Blackburn, Metall. Trans. A, Vol 11A (No. 3), 1980, p 49 5-5 07 58. D.S. Wilkinson, K. Abiko, N. Thyagarajan, ... 1×, the lens-to-film distance (bellows length) begins to exceed the lens-to-object distance and approaches a limiting value of M c f. Similarly, at higher magnification, the l...

Ngày tải lên: 10/08/2014, 12:22

... microscopy and electron microscopy (Ref 143, 144, 145, 146, 147, 148, 149, 150 , 151 , 152 , 153 , 154 , 155 , 156 ). Spalling failures in bearings are caused by factors different from those in ... 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; double-cu...

Ngày tải lên: 10/08/2014, 12:22

... 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 .147 16 4340 steels 1.44 7-1 .908 24, 69 Al 2 O 3 + 3% glass 1.2 3-1 .62 14 Prototype ... 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) 0.0731 0.0465 0.037 -4 9 N S (mm -2 ) N' A 3.45 × 10...

Ngày tải lên: 10/08/2014, 12:22