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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
... carefully controlled, especially with respect to the accuracy of the optical pyrometer temperature readout. Also, procedures must be developed such that forging blanks that trigger the over-temperature alarm are reliably and permanently removed from the production line. Crack propagation Forging...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089734
EISBN: 978-1-62708-235-8
... of the interior fillet welds on the surfaces of the flanges. Recommendations included using ultrasonic testing to identify the appropriate joints and then replacing them. Special attention to accuracy of fit-up in the replacement joints was also recommended to achieve smooth, notch-free contours on the interior...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
... rate H13 (hot-work tool steel) UNS T20813 Al-6063 (6xxx series, wrought aluminum-magnesium silicon alloy) UNS A96063 Introduction Observations on Die Failures in Local Extrusion Industry Fatigue Failure Approaches Employed Methodology Accuracy of Simulation Finite Element Analysis...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006758
EISBN: 978-1-62708-295-2
.... If available, material- and part-specific calibration standards can aid in the accuracy of the NDE efforts. It is also advisable for the customer to ensure NDE personnel are duly certified, whether through a recognized certifying organization or in-house by the NDE provider. The first and most...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
...). In most applications for failure analysis, qualitative results are adequate, but the method can determine quantitative elemental compositions to a precision of 0.01 wt% with relative accuracies of ±5%, depending on the specific material, type of x-ray detector used, the method of data analysis employed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
... validation by comparison with other industry-accepted forms of measurement to achieve an acceptable level of modeling accuracy or comparison with experimental data. A model can be defined as a representation of a physical system or process. Engineers and scientists commonly use models for both...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... 88%, was trimmed, and tensile test samples were taken from a fully formed extra length of the tube as per ASTM A 370 ( Fig. 3 ). The specified and achieved mechanical properties and dimensional accuracies are presented in Table 2 . Flow forming sequence with thickness and hardness variations...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001797
EISBN: 978-1-62708-241-9
..., dynamic and accuracy . Wiley , New York ( 1956 ) 7. Kim H.R. , Newcombe W.R. : The effect of cam profile errors and system flexibility on cam mechanism output . Mech. Mach. Theory 17 , 57 – 72 ( 1982 ) 10.1016/0094-114X(82)90024-6 8. Norton R.L. : Effect...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... testing, the assumptions made for the model should be well known and the model should be proven. If the model is being used in combination with testing, then the accuracy of the model is not as critical, because proper testing should determine the validity of the model. Whether modeling, testing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... limitations to hardness testing, including the appropriateness of averaging data; use of the appropriate hardness test, especially for bulk hardness; accuracy of hardness data; and so on. Hardness is usually used as a correlation to heat treatment condition and/or tensile strength. Therefore, any singular...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... of the personal computer), and equipment portability ( Ref 13 ). The importance of the XRD method resides in its ability to measure residual and applied stress with high spatial resolution, speed, and excellent accuracy, and, in many cases, measurements can be performed nondestructively ( Ref 14...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092131
EISBN: 978-1-62708-234-1
... in the undeformed spring. The estimates of yield strength were considered valid because of two factors: the accuracy of the hardness testing and characteristically consistent ratios of yield strength to tensile strength for the grades of steel commonly used in spring wire. The engine malfunctioned because one...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003528
EISBN: 978-1-62708-180-1
... resolution, speed, and excellent accuracy, and, in many cases, measurements can be performed nondestructively ( Ref 13 ). The measurement of residual stress via XRD is generally limited to polycrystalline materials ( Ref 6 ), that is, in materials with a grain structure (long-range ordering) as normally...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... Verification Before the details of the analytical method are discussed, it should be noted that there are few analytical methods that can be properly performed without knowledge of the intended composition. Most of the analytical methods in use today are instrumental methods whose accuracy depends...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001274
EISBN: 978-1-62708-215-0
.... The experiment was repeated four times for each of the three ovens. All test results were within experimental accuracy. To measure and verify the cooking temperatures of microwaveable dinners, sheathed-thermocouple meat thermometers were used at various stages in the cooking process. The thermocouples were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006762
EISBN: 978-1-62708-295-2
..., figures, charts, and other graphics. Mathematical and computational procedures and formulaic manipulations and equations should be described textually. If multiple equations are used, each should be numbered sequentially for reference. Testing and data accuracy should be addressed. The appropriate...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0089429
EISBN: 978-1-62708-223-5
... rating being “slight to medium.” A “medium” rating was permitted. Heat treatment and nitriding practices were consistent with those published by ASM International. After heat treatment, the drills were within the specified range of 64 to 66 HRC. Some twenty other inspections for dimensional accuracy...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... the critical excitation energy, E c —will be characteristic for that atom. By measuring the energies or the wavelengths of the x-rays emitted from a sample, the composition can be determined. The precision and accuracy of the determination depends on the type of x-ray detector used and how the analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003533
EISBN: 978-1-62708-180-1
... be determined. The precision and accuracy of the determination depends on the type of x-ray detector used and how the analysis is carried out. Detectors that determine composition based on the wavelength of the emitted x-ray are termed wavelength dispersive spectrometers or WDS. Using WDS and pure elemental...