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internal discontinuities

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... Abstract The inspection of castings normally involves checking for shape and dimensions, coupled with aided and unaided visual inspection for external discontinuities and surface quality. This chapter discusses methods for determining surface quality, internal discontinuities, and dimensional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140047
EISBN: 978-1-62708-335-5
.... This chapter describes the causes and control of porosity and inclusions in aluminum castings as well as the combined effects of hydrogen, shrinkage, and inclusions on the properties of aluminum alloys. In addition, it discusses the applications of radiography to reveal internal discontinuities in aluminum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... forgings, NDI methods (other than visual) are generally limited to magnetic particle or liquid penetrant inspection (for surface discontinuities) or to ultrasonic inspection (for internal flaws). In general, the flaws likely to be found in open-die forgings are similar to those that may occur in other hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
... are the best methods for locating internal discontinuities. Because of the nature of the process, LOF is rare. If fusion is achieved on external material edges, then fusion is generally complete throughout. Cracking may occur either in the weld or the HAZ. Porosity may either take the form of a rounded...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410253
EISBN: 978-1-62708-280-8
... tolerances Radiographs for Internal Discontinuities All castings are checked radiographically for internal discontinuities according to ASTM E 1030, with an image quality indicator (IQI) having a sensitivity level of 2 to 2T, as defined in ASTM E 1025. Internal discontinuities (shrinkage, gas...
Image
Published: 01 August 1999
Fig. 12.6 (Part 1) Internal oxidation at high temperatures. 0.2% C (0.22C-1.41 Mn-0.05Si-0.07Cu, wt%). (a) Side face of an artificial discontinuity in a billet heated at 1200 °C for 15 min. White arrows indicate the location of the scale/metal interface. 1% nital. 250×. (b) Side face More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
... seeping from the discontinuity. ASTM has prepared standard procedures for liquid penetrant inspection in ASTM E-165, E-433. Acceptance criteria should be indicated at the time of order. Radiography Radiography has become the major non-destructive test method for determining the presence of internal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... abnormally during forging, these flaws may be formed without any evidence on the surface of the forging. Bursts can also occur. Aluminum alloys. The internal discontinuities that occur in aluminum alloy forgings are ruptures, cracks, inclusions, segregation, and occasionally porosity. Ruptures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... after welding Precipitation hardened: martensitic (17-4 PH, 13-8 Mo, 15-5 PH) Very weldable, similar to austenitic Use austenitic filler if high strengths are not required Age single-pass welds to full strength Use compatible filler 5.6 Overview of Weld Discontinuities Weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720411
EISBN: 978-1-62708-305-8
... Abstract Weldments made by the various welding processes may contain discontinuities that are characteristic of that process. This chapter discusses the different welding processes as well as the discontinuities typical of each process. It provides a detailed discussion on the methods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720001
EISBN: 978-1-62708-305-8
... of the inspection methods that will be covered in the remainder of this book. Visual Inspection Visual inspection provides a means of detecting and examining a variety of surface flaws, such as corrosion, contamination, surface finish, and surface discontinuities on joints (for example, welds, seals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240607
EISBN: 978-1-62708-251-8
.... , Discontinuous Reinforcements for Metal-Matrix Composites , Composites , Vol 21 , ASM Handbook , ASM International , 2001 6. Michaud V.J. , Liquid State Processing , Fundamentals of Metal-Matrix Composites , Butterworth-Heinemann , 1993 , p 3 – 22 7. Campbell F.C...
Image
Published: 01 November 2010
Fig. 20.7 Properties of silicon carbide particulate (SiC p ) discontinuously reinforced aluminum composites. CTE, coefficient of thermal expansion; International Annealed Copper Standard (IACS). Source: Ref 2 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... used to find discontinuities that are open to the surface of solid, essentially nonporous materials. Indications of flaws can be found regardless of the size, configuration, internal structure, and chemical composition of the workpiece being inspected, as well as flaw orientation. Liquid penetrants can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... these tests are used to detect surface cracks and discontinuities. Radiography is used mainly for internal examination. A photographic record of the results of nondestructive inspection is a necessary part of record keeping in the investigation. Magnetic-Particle Inspection Magnetic-particle inspection...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
... nonferrous alloy, and the reinforcement consists of high-performance carbon, metallic, or ceramic additions. Reinforcements, either continuous or discontinuous, may constitute from 10 to 70 vol% of the composite. Continuous fiber or filament (f) reinforcements include graphite, silicon carbide (SiC), boron...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420087
EISBN: 978-1-62708-310-2
... for everything from joining copper plumbing to soldering electrical circuits. However, there is an international effort to develop lead-free solders because of the health concerns associated with lead. Nevertheless, lead-tin solders are still widely used. Consider alloy 1 in the lead-tin phase diagram ( Fig. 5.7...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870537
EISBN: 978-1-62708-314-0
... Properties of silicon carbide particulate (SiC p ) discontinuously reinforced aluminum composites. CTE, coefficient of thermal expansion; International Annealed Copper Standard (IACS). Source: Ref 2 Fig. 20.8 Elevated-temperature properties of silicon carbide (SiC) particulate discontinuously...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630001
EISBN: 978-1-62708-270-9
...? If possible, check the part against the drawing from which it was made, for it may be dimensionally inaccurate. If metal has been lost by wear or corrosion, however, dimensional checks may not be possible. Manufacturing and Processing Are there internal discontinuities or stress concentrations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870179
EISBN: 978-1-62708-299-0
... to render composite processing reasonably convenient. Also, aluminum can accommodate a variety of reinforcing agents, as will be described below. Structural Characteristics Reinforcements, characterized as either continuous (fiber reinforced) or discontinuous (particle or whisker reinforced), can...