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Vibratory stresses

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870085
EISBN: 978-1-62708-299-0
... develop across the width of the grains, and the grains become increasingly undulated. Eventually, the undulations develop into craters and material is lost by necking of the rims of the craters. Fig. 1 Scanning electron micrographs of polycrystalline aluminum exposed to vibratory cavitation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940451
EISBN: 978-1-62708-302-7
..., Nickel-Rich, Chromium-Bearing Alloys G 30, Practice for Making and Using U-Bend Stress-Corrosion Test Specimens G 31, Practice for Laboratory Immersion Corrosion Testing of Metals G 32, Test Method for Cavitation Erosion Using Vibratory Appara- tus G 33, Practice for Recording Data from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
... together. This energy may be supplied by a vibrating deck or grate, shaker pan conveyor, or any other type of vibratory mechanical action ( Figure 15-1 ). For small castings, the vibratory shakeout action may be combined with a means of conveying the casting to the location where the next operation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
... by applying heat or stress. The α′ phase is supersaturated alpha formed by a diffusionless shearlike transformation of the beta phase at or below the martensite start (M s ) temperature by rapid cooling beta-lean alloys. Figure 7.9 shows α′ in the Ti-6Al-4V alloy formed by water quenching the alloy from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060115
EISBN: 978-1-62708-355-3
... damping or internal friction in a metal or alloy subjected to cyclic or vibratory loads. Anelastic strains are one cause of stress relaxation in a tensile test when the test specimen is loaded and held at a fixed displacement. This stress relaxation is frequently called an “elastic aftereffect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200007
EISBN: 978-1-62708-354-6
...” of vibratory soil compactors. Feet (120 are used in the largest model) are tapered, flat top units about 5 in. (130 mm) high with a 14 in. 2 (90 cm) cross-sectional area. The hitch housing ( Figure 2-55 ) produced in medium carbon cast steel is a highly stressed part. The streamlined design prevents...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
...; d ε/ dt , minimum creep rate; e , base of natural logarithms; σ, stress; and T , absolute temperature (K). Other letters denote material constants. Note: The use of the same symbol in different equations does not mean that these constants have the same value. Source: Ref 1.4 Creep strain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... epitaxially and frequently is observed as a white-etching surface layer on steels. This zone exhibits high hardness, which is due to the presence of as-quenched martensite, and retained austenite. High residual tensile stresses are produced. Beneath the white-etching as-cast layer is a dark-etching heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270005
EISBN: 978-1-62708-301-0
.... Improper Design Underestimate of service stress Undesirable geometry Stress concentrators Inadequate radii at corners Inaccessibility for inspection Difficult to fabricate Improper choice of materials Improper choice of heat treatment Environmental effects Ad hoc...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
... Performance Allowable Contact Stress Allowable Bending Stress (<italic>S</italic><sub>ab</sub>) Impact and Fatigue Strength Quality Control and Inspection Inspection is one of the most important stages in gear production. Inspection and testing is done on dimensional specifications...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... used in an engine. The bearings similarly are tested, but the oils must withstand bench tests at an elevated temperature and 10,000 rpm in a rolling element bearing with heavy contact stresses, near the compressive strength of the bearing steel. Typically, only two out of ten candidate oils can qualify...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
... combinations of properties, such as ductility, formability, and machinability. The various heat treatment processes include annealing, stress relieving, normalizing, spheroidizing, and hardening by quenching and tempering (see Chapter 9, “Heat Treatment of Steel,” in this book). Quality Descriptors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780093
EISBN: 978-1-62708-268-6
... material strength, susceptibility to temperature and humidity cycles, and other related characteristics. Techniques in this area include stress analysis as well as testing for hardness, materials strength, fatigue, environment, and accelerated aging. Chemical and composition analysis for assessing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
..., edges, and corners of the parts, or to cause the parts to rub against each other, or both. This action may deburr, generate edge and corner radii, clean the parts by removing rust and scale, and modify the surface stress. The basic mass finishing processes include: Barrel finishing Vibratory...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030215
EISBN: 978-1-62708-282-2
..., localized corrosion, galvanic corrosion, intergranular corrosion, stress-corrosion cracking, hydrogen damage, and erosion-corrosion. In addition, the economic importance of cost-effective materials selection is also considered. materials selection corrosion control general corrosion localized...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... superalloys are extremely susceptible to what may appear to be minor changes in surface environment. For instance, residual stresses play an important role in the life of a component. Favorable residual stresses frequently are introduced by machining. An attempt to remove contaminants by mechanical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030115
EISBN: 978-1-62708-349-2
... to damage typically are less than one percent. Like the first surface, the second surface must be free of artifacts. Any artifact, especially on the top surface, can present a problem. When using transmitted-light microscopy, the residual stress and strain associated with the scratches will affect...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400245
EISBN: 978-1-62708-258-7
... heating to and holding at a suitable temperature followed by cooling at a suitable rate used primarily to soften metallic materials, but also to produce desired changes simultaneously in other properties or in microstructure. When applied only for the relief of stress, the process is called stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290207
EISBN: 978-1-62708-306-5
..., mechanical fastening provides better through-the-thickness reinforcement and is not as sensitive to peel stresses or residual stress affects. Mechanically fastened joints do not normally require nondestructive testing. Many mechanically fastened joints allow disassembly or panel removal. Some fasteners...