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single-tooth impact test

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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
... or wedge-shaped cracks at grain triple points • Reaction scales or internal precipitation • Some cold flow in last stages of failure Contributing factors • Load exceeded the strength of the part • Check for proper alloy and processing by hardness check or destructive testing, chemical analysis...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... producing currents in the part by direct contact with the electrodes, eddy currents are induced in the part by an alternating electromagnetic field from an induction coil. In single-coil tests, disruptions in the eddy current path due to any defect that changes the resistivity of the material are detected...
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
...), exhibits a fracture surface containing only radial marks. All at 8× These four light fractographs show the surfaces of impact fractures in Charpy specimens of AISI 4340 steel heat treated to a hardness of 27 HRC and depict the changes in surface characteristics as test temperature was decreased. The...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003986
EISBN: 978-1-62708-185-6
... feasibility for forging gears with teeth was established, the resulting gears were fatigue tested and found to have superior low-cycle fatigue life and better endurance limits than conventionally processed spur gears ( Ref 5 , 6 ). The effort was eventually directed at more complex gears. The gears shown...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005967
EISBN: 978-1-62708-166-5
... reversal ( Ref 17 ). Figure 19 shows shape changes due to thermal changes and phase transformation. If the steel transformation occurs before the thermal stress maximum, the ferrite-pearlite structure of a cylindrical test specimen will be distorted into a barrel shape. If the transformation occurs...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... 10.8 mm (0.425 by 0.425 in.) square (for impact testing) were then cut from forged billets. These specimens were used for heat treatment. Three heat treatments were used in developing the properties of the prealloyed powder forged materials: case carburizing, blank carburizing, and through hardening...
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
... tend to show classical fatigue patterns with clear crack origins, beach marks, and distinct patterns of striations. For CP Ti Brånemark single-tooth replacements, striation morphology of fracture surfaces of fixture portions that had failed were consistent with CF and had a spacing on the order of 0.5...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
... also discussed with an emphasis on the underlying philosophy for the selection and design of validation tests. The article also discusses the applications, capabilities, and limitations of heat treatment simulations via selected industrial case studies for a better understanding of the effect of...
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
... Rolling Time to spall (failure) Ref 18 Ball-rod testing apparatus Three 12.5 mm (½ in.) balls are loaded against a 9.5 mm (⅜ in.) central rod via springs; the rod is spun about its axis by an electric motor Rolling Time to spall (failure) Ref 19 Single-ball testing apparatus A ball is...
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
...) Rotating bending Machined 4340 steel (277 HB) Plain (R.R. Moore) Rotating bending Machined 4118 steel (60 HRC) Single gear tooth Unidirectional bending Machined 8620 steel (58 HRC) Single gear tooth Unidirectional bending Machined S-11 steel (n) Grooved, 7 mm (0.3 in.) D (o...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005682
EISBN: 978-1-62708-198-6
... different types of tissue responses to the biomaterial. The article discusses the testing of implant failure, such as in vitro and in vivo assessment of tissue compatibility. biomaterials biomedical devices cardiovascular applications ceramic implants dental applications functionally-graded hip...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006016
EISBN: 978-1-62708-172-6
... details postcoating application quality requirements, including measuring of dry-film thickness, assessing intercoat cleanliness, verifying minimum and maximum recoat intervals, performing holiday/pinhole detection, conducting cure/hardness testing, and assessing adhesion of the applied coating system...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005968
EISBN: 978-1-62708-166-5
... well as the importance of time, and temperature control in heat treatment. Temperature Uniformity Survey, a testing procedure intended to map variations in temperature throughout the furnace work zone, helps in precise control of temperature. The article focuses on the measuring instruments used to...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001320
EISBN: 978-1-62708-170-2
..., i Σ l i , in a P vs. i Σ l i plot obtained in indentation tests. Source: Ref 44 Table 2 Typical properties of cermets Composition Vickers hardness, kg/mm 2 Modulus of rupture, MPa Fracture toughness K Ic , MPa m Young's modulus, GPa (Ti,Mo/W...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005677
EISBN: 978-1-62708-198-6
... be 0.1 mm or less per year for acrylic resin teeth ( Ref 211 , 212 ) and less for porcelain teeth ( Ref 211 ). Clinical wear of a single acrylic tooth for one year has been measured from computer-generated data obtained from a reflex microscope and is 7.2 mm 3 ( Ref 213 ). Two-body abrasion of...
Book Chapter

By Volker Heuer
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005770
EISBN: 978-1-62708-165-8
... core of the Q-probe were measured to obtain these data ( Ref 1 ). Table 3 additionally shows the calculated α-values, derived from Eq 2 . The measured values correspond well with the calculated values. However, it is important to realize that the constant C = 0.10535 is only valid for the tested...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... indicators of the different damage modes. With this knowledge, the possibilities can be narrowed down to probabilities. In failure analysis, many techniques are used to determine the physical cause of the problem. If the results of the different tests point toward the same sequence of damage, the...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000606
EISBN: 978-1-62708-181-8
... final fracture occurred. 1.2× Fig. 166 “Cup and cone” tensile fracture of cylindrical test specimen is typical for ductile metals; in this case, annealed AISI 1035. Fracture originates near the center of the section with multiple cracks that join and spread outward. When cracks reach a region...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005807
EISBN: 978-1-62708-165-8
... some cases, however ( Ref 2 ). Examples of modern flame heads are shown in Fig. 6 . Fig. 6 Representative flame head designs. (a) Gear tooth-hardening flame head. (b) Sheave-hardening flame head. Source: Ref 3 The success of many flame-hardening applications depends...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... (570 °F), and (c) 550 °C (1020 °F). Etched in aqueous saturated picric acid containing sodium tridecylbenzene sulfonate (1 g per 100 mL solution) For carbon and alloy steels with carbon contents below 0.25%, the McQuad-Ehn test may be used. In this, a specimen of the steel is carburized at 927...