1-20 of 401 Search Results for

fatigue limit

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
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005323
EISBN: 978-1-62708-187-0
... properties and specifications of test bar. It discusses the properties of gray iron, such as fatigue limit, pressure tightness, impact resistance, machinability, and dimensional stability, at both room and elevated temperature. Wear behavior of gray iron castings during sliding contact under conditions of...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003107
EISBN: 978-1-62708-199-3
... Abstract This article provides information on the classification, microstructure, castability and section sensitivity of gray iron. It describes properties of the test bar and provides a short note on fatigue limit in reversed bending. Although the ASTM size B test bar is the bar most commonly...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001838
EISBN: 978-1-62708-181-8
... planar curves, by which the same apparent roughness and configuration are always observed regardless of the magnification ( Ref 11 ). This behavior has been found in only a few cases, such as the pathological Koch figures, whose boundaries can be increased without limit ( Ref 11 , 14 ). Fig. 1...
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
... contributed significantly to the qualitative knowledge of fracture geometry ( Ref 28 ). However, low magnifications and an unsatisfactory depth of field limited the usefulness of this technique. With the advent of fracture replicas and the transmission electron microscope, great strides were achieved in the...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
... 3 by using an integral over the volume rather than assuming the entire stressed region experiences the maximum stress, as well as introducing the concept of a fatigue limit, resulting in: (Eq 5) ln ( 1 / S ) = a ∫ V N e ( τ max − τ ∞ ) τ 0 c z 0 h...
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
... depend both on the applied stress amplitude as well as whether or not the specimens or components are notched. The ratio of the nucleation fatigue life to N t for smooth uniaxial specimens, for example, qualitatively has the sigmoidal shape shown in Fig. 2(a) , approaching 0 in the limit at N t →1...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... be defined and limited. The conventional design methods are supplemented by the fracture mechanics methods, in which cracklike flaws in the structure are anticipated and included in the design. These methods have all contributed to a better understanding of fatigue crack nucleation in regions of high...
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
.... For example, Niinomi and his coworkers ( Ref 298 , 299 ) have performed fatigue tests on a β-titanium alloy Ti-29Nb-13Ta-4.6Zr. He found that, at 10 Hz ( R = 0.1), the fatigue limit was 700 MPa (102 ksi) when the alloy was given a 1 h solution treatment at 800 °C (1470 °F), and then aged at 400 °C...
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
..., thermomechanical fatigue; NDE, nondestructive evaluation; LCF, low-cycle fatigue; HCF, high-cycle fatigue. Source: Ref 2 In the past, some limited elevated-temperature hold-time studies have been performed in vacuum to investigate the relative contribution of the environment and creep deformation to the...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... article. While the term thermomechanical fatigue is also broadly applied to define testing procedures, generic environmental exposure (both high- and low-temperature exposure), and other aspects of material evolution, this article limits the application of the term thermomechanical fatigue to the...
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
... applicability but are useful in specific, limited regions of analyses. Generally, they effectively capture the stress-ratio effects and the term (1 − R ) w is found in many “Walkerized” fatigue models. Effects of temperature, frequency, and corrosive environments are introduced into the models by conducting...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... exhibiting striations are usually isolated and limited in extent. For similar reasons, fatigue striations are generally not visible in heavily filled polymers. Revised from R.A. Lund and S. Sheybany, Fatigue Fracture Appearances , Failure Analysis and Prevention , Volume 11, ASM Handbook , ASM...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... creep-related failures, where the mechanical strength of a material becomes limited by creep rather than by its elastic limit. The majority of information provided is applicable to metallic materials, and only general information regarding creep-related failures of polymeric materials is given. The...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003143
EISBN: 978-1-62708-199-3
... for airframe structures where strength higher than that of Ti-6Al-4V is required. Usage is generally limited to secondary structures because attractiveness of higher-strength efficiency is minimized by lower fracture toughness and fatigue properties. Ti-6-2-4-6; Ti-6246. R56260. 5.5 to 6.5...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003190
EISBN: 978-1-62708-199-3
... electrochemical machining (ECM) and electrical discharge machining (EDM) of Inconel 718 produced a 35 and 63% drop, respectively, in endurance limit compared to gentle grinding. Generally, ECM, ELP, and CM produce a stress-free surface. These surfaces exhibit reduced fatigue strength when compared to a gently...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003128
EISBN: 978-1-62708-199-3
... alloys. The article discusses the typical mechanical properties and mechanical-property limits for aluminum sand casting alloys, permanent mold casting and die casting alloys based on tests of separately cast specimens; and typical mechanical properties of premium-quality aluminum alloy castings and...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
... Abstract Magnetic-particle inspection is a method of locating surface and subsurface discontinuities in ferromagnetic materials. This article discusses the applications and advantages and limitations of magnetic-particle inspection. It describes magnetic fields in terms of magnetized ring...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... Abstract This article begins with an overview of the fundamentals of adhesive technology, including functions, limitations, adhesive joint types, and the key factors in the selection of adhesives, including application, type of joint, process limitation, mechanical requirement, and service...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006442
EISBN: 978-1-62708-190-0
... Abstract This article discusses the principles and limitations of micromagnetic techniques, namely, magnetic Barkhausen noise (MBN) and magnetoacoustic emission (MAE). It also discusses various factors limiting the establishment of acceptance criteria for test components as they pertain to the...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000624
EISBN: 978-1-62708-181-8
... intrinsic brittleness of iridium makes it unique among face-centered cubic metals. This ordinarily application-limiting property has been taken advantage of here to provide striking examples of exclusively intergranular fracture. Fig. 1240 : Fracture surface of disk aged 18 h at 1500 °C (2730 °F) and then...