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nodulizing agents

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001813
EISBN: 978-1-62708-241-9
...Abstract Abstract Graphitization, the formation of graphite nodules in carbon and low alloy steels, contributes to many failures in high-temperature environments. Three such failures in power-generating systems were analyzed to demonstrate the unpredictable nature of this failure mechanism...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... steels, HAZs can be sites for precipitated intergranular carbides; the resulting alloy-depleted zones surrounding the precipitates are potential origins for intergranular corrosion or cracking of the weldment. Chemical Analysis Information on corrosive agents is usually obtained by analysis...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... cooler tube containing a hole (arrow A) and nodules (one of which is indicated by arrow B) formed from a corrosion product. (b) Etched section through the pit at arrow A, which penetrated the tube wall. Original magnification: 100×. (c) Etched section through a pit beneath the nodule at arrow B...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... edges. (b) Drag side, with fewer raised areas and almost no broken-open surface. Original magnification of both: 50× Fig. 25 Longitudinal sections from the main-bearing journal. (a) From the cope side. (b) From the drag side. Note the more numerous graphite nodules and the clustering...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... Association of Corrosion Engineers International Production of Corrosive Metabolites Other microbial metabolites have been recognized as agents of MIC. The many scenarios involving various sulfur species that are produced and consumed by microorganisms have been reviewed ( Ref 35 ), and as-yet...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... of part of the fracture surface, which was covered with rust. (b) High-magnification view (approximately 2000×) of the rust nodules on the fracture surface. (c) View of the fracture surface at the position indicated by the arrow in (a), as recorded in the scanning electron microscope after being cleaned...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
...-brown from the rust present. Figure 13(b) is a high-magnification view showing the nodules typically observed on the rusty surface, and Fig. 13(c) shows the surface after it was cleaned using Dong's solution. Fig. 13 Fracture surface where a welded connection failed in a drill pipe connection...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
..., but the active corrosive agent is not always obvious. Consequently, collection and preservation of corrosion products, particularly loose, flaky, or powdery deposits, may be vital because chemical analysis of corrosion products can be a key factor in determination of cause. Characteristic Causes of Failure...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... that the corrosion current is small despite the large differences in the open-circuit potentials between these metals and aluminum. Galvanic current between aluminum and another metal also can be reduced by removing oxidizing agents from the electrolyte. Thus, the corrosion rate of aluminum coupled to copper...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... metal also can be reduced by removing oxidizing agents from the electrolyte. Thus, the corrosion rate of aluminum coupled to copper in seawater is greatly reduced wherever the seawater is deaerated. The criterion for cathodic protection of aluminum in soils and waters has been published by NACE...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... images of dimple-rupture fractures. (a) Fracture of low-alloy medium-carbon steel bolt (SAE grade 5). Original magnification: 1750×. (b) Equiaxed tensile dimples originating around the graphite nodules of ASTM 60-45-10 ductile iron. Original magnification: 350×. (c) Parabolic shear dimples in cast Ti-6Al...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... by cleavage in second-phase (silicon) particles and other second phases. Fig. 1 SEM images of dimple-rupture fractures. (a) Fracture of low-alloy medium-carbon steel bolt (SAE grade 5). 1750×. (b) Equiaxed tensile dimples originating around the graphite nodules of ASTM 60-45-10 ductile iron. 350×. (c...