Handbook Fractography (1998) WW Part 12 pot

... strain rate of 2.0 × 10 -6 /min and fracturing in 129 h, 24 min, displays one region with a fine texture of dimples (at α). Extreme plastic flow, particularly at the grain just to the right of ... environment (40% MgSO 4 , 59% Na 2 SO 4 , 1% NaCl) at 705 °C (1300 °F). Samples heat treated 2 h at 1120 °C (2050 °F), air cool; 14 h at 845 °C (1550 °F), air cool. Fig. 832: Fatigue fracture s...

Ngày tải lên: 11/08/2014, 04:21

... Metals handbook. Includes bibliographies and indexes.Contents: v. 1. Properties and selection [etc.] v. 9. Metallography and Microstructures [etc.] v. 12. Fractography. 1. Metals Handbooks, ... such terms as macrofractography and microfractography for distinguishing the visual and low magnification (≤ 25×) from the microscopic, and optical fractography and electron fractography for...

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... and C.H. Kim, Metall. Trans. A, Vol 17A, 1986, p 1173 212. A. Phillips, V. Kerlins, R.A. Rawe, and B.V. Whiteson, Electron Fractography Handbook, MCIC-HB- 08, Metals and Ceramics Information ... 9.8 13.6 . . . . . . 40 f/4.5 6.3 9 12. 6 17.5 24.7 . . . 63 f/4.5 6.3 9 12. 6 17.5 24.7 . . . 100 f/6.3 8.8 12. 6 17.6 24.6 34.6 48.8...

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... involve rolling-contact fatigue loading and occur in forged hardened steel rolls (Ref 125 , 126 , 127 , 128 , 129 , 130), bearings (Ref 131, 132, 133, 134, 135), railroad rails (Ref 136, 137, 138, ... increases in particle density. Other studies demonstrated that tensile ductility improves as the volume fraction of second-phase particles decreases (Ref 51, 52). Particle size and mean in...

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... A. Phillips et al., Electron Fractography Handbook, AFML-TDR-64- 416, Air Force Materials Laboratory, 31 Jan 1965 42. A. Phillips et al., Electron Fractography Handbook, MCIC-HB- 08, Air Force ... of Metals, Bull. Inst. Met., Vol 1, Pt. 12, Aug 1952, p 104- 105; Intercrystalline Cracking of Brass, Bull, Inst. Met., Vol 1, Pt. 14, Oct 1952, p 120 -121 197. W. Pavinich and R. Raj,...

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... (da/dN) o , Ω 12 , or some function of Ω 12 , could be used as the coefficient. This gives: (Eq 39) For a completely undeflected crack, Ω 12 = 1; as the crack becomes increasingly jagged, Ω 12 ... Microsc., Vol 95, Part 1, 1972, p 45-58 51. D.J. Widgery and J.F. Knott, Method for Quantitati ve Study of Inclusions Taking Part in Ductile Fracture Process, Met. Sci., Vol...

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... cleavage (right). TEM replica, 5000× (J.M. Morris, U.S. Department of Transportation) Figure 211 is a polished and etched cross section of a partially flame-hardened crane gear of AISI 1045 steel ...

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... suggestions of partly formed dimples are present at a few locations. In Fig. 706, fatigue striations are much less regular than in Fig. 705; again, there are suggestions of partly formed dimples. ... the following composition (in vol%): 30% H 2 O, 12. 6% H 2 , 0.43% Ar + O 2 , 35.2% N 2 , 8.4% CO, 11.7% CO 2 , 1.0% CH 4 , and 0.105% H 2 S. Particulate matter in contact with the tube cont...

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... is approximately 7 μ m. Note also that a majority of the dimples contain one or more particles probably particles of the CuAl 2 phase of the eutectic. See Fig. 1085 for a higher-magnification ... eu tectic alloy was highly ductile. Arrow points to a spheroidal particle that should be of the CuAl 2 phase; most of the surface of this particle appears to be detached from the matrix. SEM, 7...

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