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white iron

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047352
EISBN: 978-1-62708-221-1
... Abstract Two broken ball-mill liners from a copper-mine ore operation were submitted for failure analysis. These liners failed prematurely, having reached less than 20% of their expected life. The chemical composition of the liners was within specifications for high-chromium white cast iron...
Image
Published: 01 June 2019
Fig. 1 Wear surface of a shell liner cast from high-chromium white iron. The chip formation initiates at points of the brittle carbide (Cr 7 C 3 ) fracture. 125x More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0047234
EISBN: 978-1-62708-233-4
... Abstract Several deburring drums that fractured were filled with abrasive, water, and small parts, such as roller bearing rollers, and rotated on their axis at 36 rpm. Cracks were discovered very early in the service lives of these high-chromium white iron cast structures. All of the fractures...
Image
Published: 01 January 2002
Fig. 41 Section through the worn tip of a gray-iron cam lobe. The white islands are free ferrite in a field of type D graphite. The matrix is ferritic. Etched with 2% nital. 235× More
Image
Published: 30 August 2021
Fig. 1 Section through the worn tip of a gray iron cam lobe. The white islands are free ferrite in a field of type D graphite. The matrix is ferritic. Etched with 2% nital. Original magnification: 235× More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001058
EISBN: 978-1-62708-214-3
... Abstract A white cast iron water-line plug in a fire sprinkler systems split during leak repair. Examination revealed no material flaws, fatigue, or excessive corrosion. The plug head exhibited signs of excessive loads used in attempts to force the plug farther into the pipe. The evidence...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047347
EISBN: 978-1-62708-234-1
... Abstract A high-chromium white cast iron shell liner installed in an ore crusher sustained impact damage in the course of operation. Visual-optical examination revealed horizontal cracks on the surface of the liner along with particles that had fractured off. Metallographic examination...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001307
EISBN: 978-1-62708-215-0
... metal 153, 185, 141, 146, 156, 1129 155, 143, 130, 140, 131 Weld bead on inner surface 430, 426, 401 Weld bead on outer surface 366, 385, 397 Discussion The spring hanger was made from ferritic malleable cast iron. This is, of course, produced by the heat treatment of a white iron...
Image
Published: 30 August 2021
Fig. 27 (a) AISI 4150 alloy steel chuck jaw that broke because of the presence of a brittle white-etching nitride surface layer. The part was hardened and tempered before nitriding. (b) Micrograph of surface of broken chuck jaw tooth. The white layer at the surface is brittle iron nitride More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... crushers, and earth-moving tools, the manganese steels have been partially displaced by low-alloy quenched-and-tempered steels and martensitic white irons ( Ref 10 ). High-Stress, Or Grinding, Abrasion High-stress, or grinding, abrasion occurs when abrasive particles are compressed between two solid...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
...-moving tools, the manganese steels have been partially displaced by low-alloy quenched-and-tempered steels and martensitic white irons ( Ref 10 ). High-Stress, or Grinding, Abrasion High-stress, or grinding, abrasion occurs when abrasive particles are compressed between two solid surfaces...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001776
EISBN: 978-1-62708-241-9
... and excellent wear resistance [ 2 ]. While pearlitic white cast iron, martensitic cast iron, and austenitic manganese steel are all abrasion-resistant materials, martensitic cast irons may wear more slowly than the other materials under heavy blows or high compressive and structural stresses of crusher jaws...
Image
Published: 01 December 2019
Fig. 6 Micrographs of transverse of EEIPS wire: ( a ) an optical image representing a fine ferrite–pearlite structure after etching, and ( b ) an image taken by SEM with no etching. Black colonies are iron carbides distributed in white ferrite matrix More
Image
Published: 01 January 2002
Fig. 12 Light micrograph of an ion-nitrided H13 tool steel specimen mounted in epoxy thermosetting resin (Epomet). The arrows point to a white-etching iron nitride layer at the surface that probably would not have been observed if the specimen was nickel plated for edge protection. Specimen More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047297
EISBN: 978-1-62708-235-8
... are carbides. White regions in the fine type D graphite are ferrite. 400x. Both etched with nital Conclusions The cracks in these gray iron door closers that were present either before orduring the heat treatment are attributed to a substandard microstructure of the wrong type of graphite combined...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001591
EISBN: 978-1-62708-227-3
... Navigation Company. This latter company was better known as the White Star Line, named after the company pennant, a white star on a red field. The White Star Line was owned by the International Mercantile Marine Company, which was controlled by J.P. Morgan. After their meal, the two men planned the future...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001127
EISBN: 978-1-62708-214-3
... for this simple type of assembly. How Failure Could Have Been Prevented Zinc white paste usually has a 90% powdered oxide base with a 10% oil vehicle. Such a paste was apparently used to lubricate the iron ball-float rod so that it would screw into the ball more easily. Hydrocarbon oils...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001823
EISBN: 978-1-62708-241-9
... Table 2 for results of the testing. The hardness in the white portion of Mount A (Region 1) was ~800 HK, which is consistent with the high hardness of eutectic iron. Region 1 must have been carburized from the coating or hydrocarbon product. The hardness in Region 2 (hardness locations B and C) ranged...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0092155
EISBN: 978-1-62708-221-1
... than the required value of 58 HRC. Microstructure Microstructure of the cases and cores of the two components was examined at 500× on polished sections etched in 2% nital. There was a white layer (nitrogen-rich iron nitride, Fe 2 N) about 0.025 mm (0.001 in.) thick on the surfaces of the gear...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... , 33 ). These are critical in determining the development of the white layer and the subsequent crack nucleation and wear debris formation. Work has shown that treatment of materials such as cast iron or stainless steel via techniques such as laser hardening ( Ref 34 , 35 ), induction hardening...