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sulfide inclusions

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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.c9001780
EISBN: 978-1-62708-241-9
... Abstract A number of failures involving carbon and alloy steels were analyzed to assess the effects of inclusions and their influence on mechanical properties. Inclusions, including brittle oxides and more ductile manganese sulfides (MnS), affect fatigue endurance limit, fatigue crack...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001126
EISBN: 978-1-62708-214-3
... oxide and covered on the back surfaces with an adherent black polyethylene plastic. Macro fractography, SEM fractography, EDX analysis, and photo elasticimetry were conducted on four of the shattered panels. Small nickel sulfide inclusions were found at the failure origins. Failure of the panels...
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Published: 01 January 2002
Fig. 14 Average angle of sulfide inclusions relative to the longitudinal axle axis as a function of distance from the fracture face. Specimen was taken from the area near the centerline at the fracture face. Compare to the qualitative examples in Fig. 12 and 13 . More
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Published: 01 January 2002
Fig. 14 Significant volume fraction of manganese sulfide inclusions in wedge-shaped tapered ring microstructure. 73× More
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Published: 01 December 2019
Fig. 3 Manganese sulfide inclusions on a plane of ductile overload perpendicular to the rolling direction. The inclusions are not symmetric since the original rolled blank was used in a later forging operation More
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Published: 01 December 2019
Fig. 5 Manganese sulfide inclusions ( arrows ) present in a hardened, bainitic microstructure More
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Published: 01 December 2019
Fig. 11 Manganese sulfide inclusions ( arrows ) near a fatigue origin More
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Published: 01 December 2019
Fig. 14 SEM image of manganese sulfide inclusions (vertical features) on a longitudinal fracture plane of embrittled material, hence the intergranular fracture of the matrix More
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Published: 01 June 2019
Fig. 6 Significant volume fraction of manganese sulfide inclusions in wedge-shaped tapered ring microstructure. 73× More
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Published: 15 January 2021
Fig. 13 Significant volume fraction of manganese sulfide inclusions in wedge-shaped tapered ring microstructure. Original magnification: 73 × More
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Published: 01 June 2019
Fig. 10 The SEM micrograph shows sulfide inclusions A and B in the fracture surface of the transverse Charpy specimen from the RMS Titanic plate tested at −34 °C. Reproduced with permission of the Iron & Steelmaker. 13 More
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Published: 01 June 2019
Fig. 8 EPMA scans of TiN associated sulfide inclusion in roll sample HSM #3 showing (a) BSE image, (b) Ti x-ray map, (c) Mn x-ray map, and (d) S x-ray map; magnification 1000× More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0047860
EISBN: 978-1-62708-218-1
... of the main-bearing journals. A crack along the fillet, almost entirely through the web, was observed in one of the main-bearing journals. Numerous coarse segregates, identified as sulfide inclusions, were identified by macroetching the surface during metallographic examination of a section taken through...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001289
EISBN: 978-1-62708-215-0
.... Subsurface cracks were found to be zigzag and discontinuous as well as intergranular in nature. A mixed mode of fracture involving ductile and brittle flat facets was observed. Micropores and rod-shaped manganese sulfide inclusions were also noted. The material had a hydrogen content of 22 ppm, and cracking...
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Published: 01 December 2019
Fig. 8 SEM micrographs and spectrum diagram of inclusions ( a , d ) oxide inclusions and sulfide inclusion; ( b , e ) oxide inclusions, carbonitride inclusion, and sulfide inclusion; ( c , f ) oxide inclusions and sulfide inclusion More
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Published: 01 June 2019
Fig. 9 a. In the unaffected part. Change of shape and distribution of the manganese sulfide inclusions as the weld seam is approached, longitudinal polished section, unetched. 500 × b). In the proximity of the weld seam. Change of shape and distribution of the manganese sulfide inclusions More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0089254
EISBN: 978-1-62708-225-9
...-open fracture surface (b) of failed wedge-shaped middle tapered ring. 6× Fig. 5 Higher-magnification view of fracture surface shown in Fig. 12 at origin of cracking. Arrows indicate large manganese sulfide inclusion at origin. Chemical analysis of the material revealed a resulfurized...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0089338
EISBN: 978-1-62708-224-2
.... The directionality of the features was found to be suggestive of shear overload. It was observed that fracture preferentially followed the nonmetallic inclusions. The fracture was revealed to be parallel to the direction of the manganese sulfide stringer inclusions. The presence of significant banding of the ferrite...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001787
EISBN: 978-1-62708-241-9
... an inclusion that appears round with diameter of 8 μm, as oxide inclusions and sulfide inclusions by energy spectrum analysis including aluminum oxide, calcium oxide, magnesium oxide, and manganese sulfide. Figure 8b , e shows an inclusion that appears round with diameter of 10 μm, as oxide inclusions...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001206
EISBN: 978-1-62708-235-8
... ); their origin is probably due to the inclusions precipitated at the austenite grain boundaries ( Fig. 8 ). These inclusions are optically isotropic and, judging by their shape and color, appear to be sulfides of manganese. These manganese sulfides exhibit an elongated shape in the longitudinal section taken...