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body-centered cubic

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Published: 01 January 2002
Fig. 12 Example of unstable rapid fracture in a body-centered cubic (bcc) metal (annealed low-carbon steel). Rapid fracture in this alloy occurs almost completely by microvoid coalescence, but close examination reveals a few areas of brittle cleavage. The bcc structure is not close-packed More
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Published: 01 January 2002
Fig. 22 Effect of temperature on toughness and ductility of face-centered cubic (fcc), body-centered cubic (bcc), and hexagonal close-packed (hcp) metals More
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Published: 01 January 2002
Fig. 5 Diagram of the temperature dependence of elastic, plastic, and fracture behavior of polycrystalline materials that do not exhibit a solid-state transformation. bcc, body-centered cubic; fcc, face-centered cubic; T , instantaneous absolute temperature; T M , absolute melting More
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Published: 01 January 2002
Fig. 21 Simplified deformation behavior (Ashby) maps of unalloyed annealed metals with (a) face-centered cubic crystal structure and (b) body-centered cubic crystal structure. Engineering alloys may behave somewhat differently than unalloyed metals, but these general trends are relatively More
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Published: 01 January 2002
Fig. 15 Effect of strain rate on ductile-to-brittle transition temperature in body-centered cubic metals More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001033
EISBN: 978-1-62708-214-3
... found in the engine was identified as type 304 stainless steel by energy-dispersive X-ray spectroscopy. X-ray diffraction of both as-received and engine run screen materials revealed that two phases were present in each: face-centered cubic (fcc) ( a = 0.3607 nm) and body-centered cubic (bcc...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... Aircraft Structural Integrity Program ASME American Society of Mechanical En- gineers ASTM American Society for the Testing of Materials AWS American Welding Society bcc body-centered cubic B Burgers vector BS British Standard BSE backscattered electrons BSI British Standards Institution CAD computer-aided...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
...) from a body-centered cubic crystal structure (β phase) stable at high temperatures to a heaxagonal close-packed crystal structure (α phase) stable at low temperatures. This transformation generally results in a Widmanstätten structure of α-zirconium. The more rapid the cooling rate, the finer...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006786
EISBN: 978-1-62708-295-2
.... Fig. 1 Embrittlement and nonembrittlement couples in solid/liquid systems. hcp, hexagonal close-packed; bcc, body-centered cubic; fcc, face-centered cubic. Source: Ref 5 Metals that have been shown to cause liquid-metal-induced embrittlement, solid-metal-induced embrittlement, or both...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... atoms typically result in a crystalline structure, which in most engineering metals are face-centered cubic (fcc), body centered cubic (bcc), or hexagonal close-packed (hcp) structures. The formation of crystal lattices occurs as a result of bonding between atoms. Strong bonding forces between atoms...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001843
EISBN: 978-1-62708-241-9
... diffraction (XRD) was used. Since tin pest is the transformation of tin from a body centered tetragonal structure (beta tin) to a cubic structure (alpha tin), use of XRD on the affected areas provided conclusive evidence of the phase constituents present. Figure 6 shows the XRD spectra obtained...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... are rotated with respect to each other (polycrystalline). In most metals, metallic bonds between atoms typically result in a crystalline structure, which in most engineering metals are face-centered cubic (fcc), body-centered cubic (bcc), or hexagonal close-packed (hcp) structures. The formation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... form both at grain boundaries and within the grains. Sensitization develops as Cr is depleted from the areas surrounding the precipitates. 1 Toughness is also reduced by carbide precipitation. Between 370 and 480 °C (700 and 900 °F), precipitation of alpha prime, a body-centered cubic (bcc), Cr-rich...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001685
EISBN: 978-1-62708-235-8
..., the material is quenched from a body centered cubic crystallographic structure with titanium in solution to an orthorhombic structure consisting of α′-martensite that is supersaturated with titanium. Fine precipitates identified as U 2 Ti (δ phase) are evenly dispersed throughout the matrix [ 1 ]. However...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... markings that the dark region was the location of some material imperfection that initiated fracture. Typically, it is common for fracture initiation to occur within a relatively small region, where the center of the radial-fan markings provides a strong indication of the crack initiation region...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001803
EISBN: 978-1-62708-241-9
...Type of Implant Material, Chemical Composition, Survival Time in Body, and Reasons for Failure Table 1 Type of Implant Material, Chemical Composition, Survival Time in Body, and Reasons for Failure Type of Implant Composition Survival Time, yr Failure Reason Total hip prosthesis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... or determine σ 1 , σ 2 , σ 3 , and maximum shear stresses for a general 3D system of stresses. However, once σ 1 , σ 2 , and σ 3 are known from the solution of the cubic equation ( Eq 21 ), it is possible to draw three circles ( Fig. 6 ) having centers, C , at (Eq 24) C 1 = σ 1 + σ 2 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... from the solution of the cubic equation ( Eq 21 ), it is possible to draw three circles ( Fig. 6 ) having centers, C , at: (Eq 24) C 1 = σ 1 +   σ 2 2 ;   C 2 = σ 2 +   σ 3 2 ;   C 3 = σ 1 +   σ 3 2 and radii: (Eq 25) R 1...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... cubic (fcc) crystal structure, and one for a body-centered cubic (bcc) material that exhibits a ductile-to-brittle transition. Fig. 5 Diagram of the temperature dependence of elastic, plastic, and fracture behavior of polycrystalline materials that do not exhibit a solid-state transformation. bcc...