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process-controlled resonant testing

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005341
EISBN: 978-1-62708-187-0
... Abstract The commonly used nondestructive testing of cast products include liquid penetrant inspection, radiographic inspection, fluoroscopic inspection and automated defect recognition, ultrasonic inspection, eddy current inspection, process-controlled resonant testing (PCRT), leak test, and...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002360
EISBN: 978-1-62708-193-1
... resonance rotational-bending servomechanical system specimen size FATIGUE is generally understood to be a process dominated by cyclic plastic deformation, such that fatigue damage can occur at stresses below the monotonic yield strength. The process of fatigue cracking generally begins from locations...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005806
EISBN: 978-1-62708-165-8
... atmosphere control depends on various potentials. The article summarizes the methods of measuring potentials in nitriding and nitrocarburizing, provides useful information on the furnaces used, and the safety precautions to be followed in the nitriding process. It also describes the sample preparation...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001750
EISBN: 978-1-62708-178-8
... thermocouple can also be connected to an automatic temperature controller that regulates the temperature of the gas blowing past the sample. Another method for obtaining high temperatures consists of placing the microwave-resonant cavity in an oven. Cryogenic temperatures near 4 K are generally obtained by...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
...; Processes , Ultrasonic Testing , Vol 17 , Nondestructive Testing Handbook , Birks A. , and Green B. Jr. , Ed., American Society for Nondestructive Testing , 1991 , p 514 – 548 40. Christensen R.M. , Mechanics of Composite Materials , Wiley , New York 1981 41. Mal...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003315
EISBN: 978-1-62708-176-4
... constructed easily from commercially available parts. Tien et al. ( Ref 16 ) describe the construction of a test machine using ultrasonic components normally used in ultrasonic joining processes. This machine, an open-loop test stand, contains the basic equipment needed for testing. Information on test stands...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... in Composites during Fatigue , Res. Nondestruct. Eval. , Vol 10 , 1998 , p 147 – 162 10.1080/09349849809410023 39. Bar-Cohen Y. et al. , Ultrasonic Testing Applications in Advanced Materials and Processes , Ultrasonic Testing , Vol 17 , Nondestructive Testing Handbook...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003321
EISBN: 978-1-62708-176-4
... ). Hardness testing is a very common mechanical test applied to materials. Hardness testing is used extensively in quality control, where data can be collected that relate the mechanical properties of a given material, its microstructure, and processing methods. Over the years, many researchers have...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006402
EISBN: 978-1-62708-192-4
..., or time) Modern test equipment and data-processing capability have evolved significantly for robust tribological testing in terms of variability of test conditions. This has enabled the concept of dynamic testing, where critical parameters are repeatedly varied in a controlled manner during a...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003028
EISBN: 978-1-62708-200-6
... processes. aging factors chemical corrosion environmental corrosion photooxidative degradation plastic materials service temperature determination thermal degradation thermal oxidative degradation weathering testing ALL ENGINEERING PLASTICS are affected by their environment. Weathering and...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005731
EISBN: 978-1-62708-171-9
... Abstract The raw materials used in thermal spray processes are a critical parameter in the finished coating because the variations in their size, morphology, chemistry, and phase composition can significantly impact coating properties. Therefore, it is important to test and characterize the raw...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
... plasticity is always a necessary ingredient for the nucleation process. Although the scenario described above is simplified, it provides phenomenological insight into the gradual, progressive nature of the fatigue process that is useful in understanding cyclic testing in the low-, intermediate-, and high...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003295
EISBN: 978-1-62708-176-4
... in excess of 10 4 s −1 , the lower yield stress is often found to be directly proportional to strain rate, rather than to the logarithm of strain rate. This implies a new region of mechanical response controlled by a viscous damping mechanism, in contrast to thermally activated processes at strain...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003317
EISBN: 978-1-62708-176-4
... that the K max at the end of precracking does not exceed levels expected at the start of a test. For most metals, precracking is a relatively simple process that can be performed under load or displacement control conditions. Moderate growth rates (1 × 10 −5 m/cycle) can be selected by estimating...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003442
EISBN: 978-1-62708-195-5
... resin content lower, and the fiber content higher. Measurement of per ply thickness is useful as an indication of resin content and a quality control check on the fabrication process. Thickness measurements are required for mechanical properties testing to determine the cross-sectional area of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... product Establish the possibilities of total process automation (as in the cement industry) Acquire knowledge of competing products The chemical composition of a material is defined by the quality and quantity of its constituent chemical elements. These elements can be categorized according...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005149
EISBN: 978-1-62708-186-3
... monitor changes in a particular grade of material caused by changes in processing that may affect formability. For steels, hardness measurements correlate well with yield strength values ( Ref 47 ). Therefore, hardness testing is useful in quality control to ensure that the material in use is the...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003328
EISBN: 978-1-62708-176-4
... the pressurizing medium and had already been filled in the pipe during the heating process. The internal pressure was controlled in parallel with the heating temperature so that no steam could develop inside the pipes (for safety). After reaching the test temperature, the pressure was raised...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003257
EISBN: 978-1-62708-176-4
... engineering in the development of products and processes, and an integral aspect of design is the use of mechanical properties derived from mechanical testing. The basic objective of product design is to specify the materials and geometric details of a part, component, and assembly so that a system meets its...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006441
EISBN: 978-1-62708-190-0
... insulation, it is simple to repeat the inspection at any future date just by connecting the instrument at the separate connector. Such a setup is useful when the test location is difficult or expensive to access. The setup also allows the processing of signals over a period of time to identify, with much...