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Nonmetallic inclusions

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220129
EISBN: 978-1-62708-259-4
.... continuous casting hot cracking ingot casting macrosegregation microporosity nonmetallic inclusions solidification shrinkage steel Modern steelmaking and refining processes are capable of producing large masses of highly homogeneous steel, both chemically and thermally. However, these liquid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140047
EISBN: 978-1-62708-335-5
...Inclusion sources and types in aluminum alloy castings Table 5.1 Inclusion sources and types in aluminum alloy castings Classification Types observed Potential source(s) Nonmetallic exogenous Various refractory particles, Al 4 C 3 , etc. Refractory degradation, remelt ingot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770099
EISBN: 978-1-62708-337-9
...(32.4) 320(32.6) Fatigue anisotropy, transverse/longitudinal 0.82 0.85 Fatigue ratio, longitudinal fatigue/ultimate tensile strength 0.5 0.54 Source: Ref 56 Hardness of nonmetallic inclusions Table 5.9 Hardness of nonmetallic inclusions Nonmetallic inclusion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220353
EISBN: 978-1-62708-259-4
... their effect. It describes the effect of hot working on nonmetallic inclusions and the many properties influenced by them. It discusses the recrystallization mechanism by which hot working produces microstructural changes and explains how to control it by adjusting temperature, degree of reduction, and cooling...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270150
EISBN: 978-1-62708-301-0
... originating from nonmetallic inclusions in the blade root. compressor blades energy-dispersive X-ray spectrophotometry fatigue fracture SEM fractography visual examination Summary Background Visual Examination of General Physical Features Testing Procedure and Results A compressor...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410163
EISBN: 978-1-62708-265-5
... Inclusions and chemical segregation are factors in many process-induced failures involving steel parts. Inclusions are nonmetallic compounds introduced during production; segregation is a type of chemical partitioning that occurs during solidification. This chapter discusses the origins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220039
EISBN: 978-1-62708-259-4
... is finished, the surface should be cleaned carefully again with a piece of clean cloth or cotton ball. At this point of the preparation, some important features can be observed: porosity, bubbles, pipe, large nonmetallic inclusions, and some weld defects are already evident without etching. Another...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220069
EISBN: 978-1-62708-259-4
... . Oblique (or inclined) illumination may be used to highlight some aspects of the microstructure or to change the way contrast is perceived (see Fig. 8.38 in Chapter 8, “Solidification, Segregation, and Nonmetallic Inclusions,” in this book). The most common form of illumination, however, is parallel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220009
EISBN: 978-1-62708-259-4
... is to affect how steel solidifies. These processes are discussed in more detail in Chapter 8, “Solidification, Segregation, and Nonmetallic Inclusions.” The classical process for reduction of iron ores takes place in the blast furnace, which is the result of more than 500 years of technical development...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220403
EISBN: 978-1-62708-259-4
... of large grains that grow from cold-worked ones meeting at various points, as shown in Fig. 12.41 ( Ref 21 ). To ensure a high magnetic permeability and low hysteresis losses, these steels have a carbon content lower than 30 ppm, the minimum achievable amount of nonmetallic inclusions, and minimum...
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
... to the forging operation. Some, but again by no means all, of the service problems that occur with forgings can be traced to imperfections originating in the ingot. Chemical Segregation Ingot Pipe and Centerline Shrinkage High Hydrogen Content Nonmetallic Inclusions Unmelted Electrodes and Shelf...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
..., type, size, and distribution of nonmetallic inclusions in production samples as well as give a microcleanliness rating for the specimen analyzed. Some image analysis systems are programmed to give the steel an ASTM E 45 ranking for sulfides, silicates, aluminum oxides, and globular oxides. Many...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220667
EISBN: 978-1-62708-259-4
... an examination aimed at quantifying the nonmetallic inclusion population and distribution was carried out close to the axle surface (caused by the observations of Fig. 18.1 ) was a weld repair in the fracture initiation region detected. Railroad axles are not supposed to be welded or weld repaired...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220519
EISBN: 978-1-62708-259-4
..., for instance, are as much dependent on the amount and type of nonmetallic inclusions in the steel as on the level of segregation in the product. 15.1 Quenched and Tempered Steels 15.2 Coatings 15.3 Medium and High-Carbon Steels References References 1. Sandor L.T. , Influência do teor...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220193
EISBN: 978-1-62708-259-4
...: Metal de Solda, Soldagem e Materiais , Arquivo Técnico , Vol 1 ( No. 2 ), 1993 , p 18 – 25 81. Fox A.G. and Brothers D.G. , The Role of Titanium in the Nonmetallic Inclusions Which Nucleate Acicular Ferrite in the Submerged Arc Weld (SAW) Fusion Zone of Navy HY-100 Steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220101
EISBN: 978-1-62708-259-4
... the discussion is limited to transformations that do not involve the liquid phase (see Chapter 8, “Solidification, Segregation, and Nonmetallic Inclusions,” in this book). Thus, we are only concerned with BCC, FCC, and the iron carbide Fe 3 C, called cementite. In this situation, the constituents present...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560309
EISBN: 978-1-62708-291-4
... of δ ferrite and of austenite. 1% nital + bromine-methyl alcohol. 100×. (d) Weld interface. 1% nital + bromine-methyl alcohol. 50×. (e) Weld metal. Arrows indicate typical nonmetallic inclusions. Unetched. 1000×. (f) Weld interface. Arrows indicate the width of partly melted zone at the weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560081
EISBN: 978-1-62708-291-4
... to the difference in carbon content. There is a corresponding, although small, difference in hardness (see caption to Fig. 5.1 ). The junction between rim and core is just distinguishable ( Fig. 5.1 (Part 2) h ), more so where ferrite-rich regions containing numerous small nonmetallic inclusions (probably oxides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
... steels Semifinished for forging Forging quality Special hardenability Special internal soundness Nonmetallic inclusion requirement Special surface Carbon steel structural sections Structural quality Carbon steel plates Regular quality Structural quality Cold-drawing quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220085
EISBN: 978-1-62708-259-4
... to Ref 27 , the technique is extremely useful for the in-situ observation of liquid metal, chemical reactions, phase transformations, and so on. Examples of the application of the technique are presented in Chapter 8, “Solidification, Segregation, and Nonmetallic Inclusions.” Orrling et al. ( Ref 27...