1-20 of 289 Search Results for

induced crack size

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005419
EISBN: 978-1-62708-196-2
... rogue material defect (e.g., forge induced porosity, casting defect, or remnant unrecrystallized microstructure) or machining error, will not grow to a catastrophic size before a safety inspection or retirement ( Ref 1 ). This requires the application of crack-growth modeling on the specific component...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
... the propensity for surface cracking, and prevents internal defects from opening and growing. Radial forging was first conceived in Austria in 1946, and the first four-hammer machine was built in the 1960s. Today there are hundreds of machines worldwide in a number of different sizes and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003105
EISBN: 978-1-62708-199-3
... either by generally reducing its size (cross section) or by pitting, which not only reduces the effective cross section in the pitted region, but also introduces stress raisers that may initiate cracks. Obviously, any measure that reduces or eliminates corrosion will extend the life of a component and...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003821
EISBN: 978-1-62708-183-2
... pitting and crevice corrosion. Molybdenum also greatly increases the strength of the nickel-rich solid solution, by virtue of its large atomic size. Tungsten: This element behaves in the same way as molybdenum and is often used in combination with molybdenum. It is an even more effective solid...
Book Chapter

By Ted Kostilnik
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001235
EISBN: 978-1-62708-170-2
... variables, applications, and limitations of shot peening and provides information on peening action, surface coverage, and peening intensity. It discusses the equipment used for shot recycling and shot propelling as well as the types and sizes of media used for peening. The article describes the problems in...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006286
EISBN: 978-1-62708-169-6
..., section size, and martensitic transformation in quenched titanium alloys. It shows how residual stresses in titanium alloys are evaluated and controlled. Finally, the article describes the stress-relief treatments used to reduce residual stresses. alloying aluminum hardenability heat treatment...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
... a toughness test in air; the rate of crack growth was in the range of rapid, unstable fracture. Dimples in an extremely wide variety of sizes and channels formed by linear coalescence of voids are evident. See Fig. 330 , 331 , 332 , 333 , 334 , and 335 for the fracture behavior of this...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003233
EISBN: 978-1-62708-199-3
... inspect magnetic materials for defects such as cracks, voids, and inclusions and to assess other material properties, such as grain size, texture, and hardness. This article discusses the principles of such defect detection, providing details on the origin, generation, and assessment of leakage field data...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001837
EISBN: 978-1-62708-181-8
... Abstract The principal objective of quantitative fractography is to express the characteristics of features in the fracture surface in quantitative terms, such as the true area, length, size, spacing, orientation, and location. This article provides a detailed account of the development of more...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003836
EISBN: 978-1-62708-183-2
... nanocrystalline materials with nanometer grain sizes in at least three respects: Isolated crystals embedded in an amorphous matrix lack grain-boundary triple points with their associated defective structure. The remaining amorphous matrix surrounding a nanocrystal can collect slowly diffusing solute that...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
... malleable state into very strong, structurally useful engineering materials. The strengthening mechanism of precipitation hardening gave industry a strong, stiff, low-density material that was easily formable into many different shapes and sizes. Aviation was the driving force for the development of these...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003823
EISBN: 978-1-62708-183-2
.... With little impedance from impurities in Zr702, grains in the HAZ grow to much larger sizes, with an acicular structure ( Fig. 1b ). Weld metal exhibits a Widmanstätten structure, as shown in Fig. 1(c) . Welding has a great effect on the morphology of second-phase particles, which affects the...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
... initiation and propagation components, that is, N T = N i + N p , with the latter based on fracture mechanics correlations for crack growth, for example, da/dN = f (Δ K, K max ). The cyclic crack growth rate is a function of of the stress-intensity range and maximum stress intensity. The crack size...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000610
EISBN: 978-1-62708-181-8
... intergranular corrosion played a role in this fracture. Note how the “corrosion-etched grain size” in Fig. 686 is very similar to the etched grain size in this photomicrograph. 1000× (R.J. Gray, Consultant) Microvoid linking by creep in AISI type 316. Intergranular creep fracture depends on the nucleation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003058
EISBN: 978-1-62708-200-6
... applications in failure analysis of glass and ceramic materials. If the size and shape of a crack and the magnitude of the external stress can be determined, it is possible to identify a unique value of the crack tip stress intensity that will cause crack propagation in the material of interest. In practice...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000621
EISBN: 978-1-62708-181-8
... separation between the hub and web of the wheel half, as shown in Fig. 970 . See also Fig. 972 and 973 . Fig. 970 : ∼0.17×. Fig. 971 : Actual size Fig. 972 Enlarged view of the fatigue-crack origin in Fig. 971 , which plainly shows the region of initial penetration (light area). At arrow is a...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000609
EISBN: 978-1-62708-181-8
... duplex types consisting of sulfide and aluminate phases. Decreasing the size and number of inclusions, and the number of inclusions formations, is responsible for the improved FCP behavior in the through-thickness orientations of calcium-treated steels. Direction of FCP is toward the top. Δ K = 26 MPa...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005947
EISBN: 978-1-62708-166-5
... qualitatively for each material without phase transformation. Frerichs has shown that in addition to the Biot number, only five other dimensionless numbers are necessary for the description of thermal-stress-induced size changes of cylindrical bodies ( Ref 17 ). The relative length and diameter changes are...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005411
EISBN: 978-1-62708-196-2
... equation has been formulated to represent the dwell-time effects ( Ref 3 ): (Eq 1) d a d N = c 1 ( Δ K ) n 1 + c 2 ( Δ K ) n 2 ( t h ) where a is crack size; N is fatigue cycles; Δ K is the cyclic stress-intensity parameter; n 1...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... on materials, size, and methods of repair; however, the part or the entire device may be replaced. This possibility is not available when dealing with a human being. There are many more limitations on the materials placed in a biological system, some of which include biocompatibility, stress...