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Casting-related failures

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... Abstract This appendix provides detailed information on design deficiencies, material and manufacturing defects, and service-life anomalies. It covers ingot-related defects, forging and sheet forming imperfections, casting defects, heat treating defects, and weld discontinuities. It shows how...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630013
EISBN: 978-1-62708-270-9
... mechanical properties plastic deformation WHILE A DETAILED STUDY of mechanical properties of metals is beyond the scope of this work, there are certain facts that must be understood if the task of failure analysis is to be successfully undertaken. Because both fracture and wear are closely related...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060091
EISBN: 978-1-62708-355-3
...% offset yield strength Ultimate Tension Shear Cast irons Gray cast iron . . . 140 (20) 105 (15) 40 (6) 1 White cast iron . . . 415 (60) 140 (20) 55 (8) . . . Nickel cast iron, 1.5% nickel . . . 310 (45) 140 (20) 55 (8) 1 Malleable iron 230 (33) 345 (50) 170 (25) 70...
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
... are then reviewed. Details on product validation requirements and definitions of parameters related to the launch process are also provided. The chapter discusses the purpose of manufacturing control plan, along with an illustration of a manufacturing control plan outlined for a safety-critical suspension casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130311
EISBN: 978-1-62708-284-6
... Abstract This chapter focuses on the failure aspects of tool steels. The discussion covers the classification, chemical composition, main characteristics, and several failures of tool steels and their relation to heat treatment. The tool steels covered are hot work, cold work, plastic mold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... Structural analysis performed on samples from the fractured region. Etched with 3% nital. Original magnification: 200× It could be concluded that the failure cause was related to casting defects, such as connected shrinkage cavities and porosity colonies, associated with tensile loads applied during...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
..., or investigate structure-related effects. The chapter addresses each case, tailoring its guidelines and suggestions accordingly. metallographic evaluation Metallographic evaluation is a valuable tool in metal characterization, particularly for steels and cast irons. To guarantee that useful...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320049
EISBN: 978-1-62708-332-4
... modifications to the geometry for manufacturability. The casting engineer should have expertise related to alloys and modifications in order to achieve the properties and the quality required. The material engineer needs to have a working knowledge of the material properties and microstructure requirements...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.9781627082709
EISBN: 978-1-62708-270-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090257
EISBN: 978-1-62708-266-2
... were very limited, with most tests conducted above the yield strengths of the alloys ( Ref 9.12 ). Therefore, the basis for these claims is questionable. Also, as discussed in the section “Service Failures” in this chapter, a number of SCC failures of cast magnesium components have since been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200065
EISBN: 978-1-62708-354-6
... relate to codes and standards. The chapter describes processes involved in the selection of specifications for steel castings. Further, it provides information on the cost of specifications. certification nondestructive testing specifications steel castings welding Opening image...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200220
EISBN: 978-1-62708-354-6
... the prototype sampling program. The would include non-destructive examination techniques such as radiography, dimensional layout, hardness testing, etc. External Failure Costs are the credits against sales due to defective castings being shipped to customer’s plants, plus the in-house costs associated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
... Abstract This chapter briefly outlines some of the basic aspects of failure analysis, describing some of the basic steps and major concerns in conducting a failure analysis. A brief review of failure types from fracture, distortion, wear-assisted failure, and environmentally assisted failure...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630001
EISBN: 978-1-62708-270-9
... usually has a specific relation to the direction of the stress that caused the fracture to occur. How many fracture origins are there? The answer concerns the relative magnitude of the actual stress to the actual strength of the part at the locations of failure. Is there evidence of corrosion, paint...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200048
EISBN: 978-1-62708-354-6
...% are related to improper design, such as designed-in or machined-in notches and other stress raisers resulting from service conditions, the improper joining of sections, and the failure to observe the rules of good design. Steel castings are capable of giving long life in exacting service. Figure 3-22 shows...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200133
EISBN: 978-1-62708-354-6
... of design-related defects such as shrinkage so that modifications to the model can be made until a sound casting design is arrived at, even before a hard drawing has been made. Other examples are Rapid Prototyping Processes which offer the capability of producing accurate, scaled, hard models of castings...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... of elastic strain and stress on the material. Low-cycle fatigue test data are often presented as a plot of the plastic strain range, Δε p , versus cycles to failure, N . When plotted on log-log coordinates, a straight line is obtained that is described by the Coffin-Manson relation: (Eq 14.8) Δ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140061
EISBN: 978-1-62708-335-5
... by government agencies and technical societies. These documents specify testing frequency, tensile specimen type, casting lot definitions, testing procedures, and test limits. These requirements may also be separately negotiated. Brinell hardness (10 mm ball, 500 kg load, 30 s) is only approximately related...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630101
EISBN: 978-1-62708-270-9
...(a) is presented in Fig. 12(c) , showing a spherical pore. The texture surrounding the pore is indicative of fatigue-related cracking. An inexperienced failure analyst may incorrectly interpret the pore as an isolated ductile rupture. Fig. 12 (a) Fracture through an aluminum fatigue bar specimen (33...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270019
EISBN: 978-1-62708-301-0
... against the specifications and deviations, if any, and should be carefully considered as possible contributing factors. At this stage, expertise from other related disciplines would be quite useful in interpreting the data. A fund of information on various aspects of the failure would become available...