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Alloy cast iron

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0047307
EISBN: 978-1-62708-223-5
... Abstract An impact breaker bar showed signs of rapid wear. The nominal composition of this chromium alloy cast iron was Fe-2.75C-0.75Mn-0.5Si-0.5Ni-19.5Cr-1.1Mo. The measured hardness of this bar was 450 to 500 HRB. The desired hardness for this material after air hardening is 600 to 650 HRB...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001202
EISBN: 978-1-62708-234-1
.... Alloy cast iron Impellers Rotary pumps GGL NiCuCr 15 6 2 Cavitation wear The two damaged impellers made of austenitic cast iron came from a rotary pump used for pumping brine mixed with drifting sand. On one of the impellers, pieces were broken out of the back wall in four places...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090971
EISBN: 978-1-62708-222-8
... Abstract A die-cast zinc adapter used in a snowthrower failed catastrophically in a brittle overload manner. The component had a chemical composition similar to standard zinc alloy ZA-27 (UNS Z35840), although the iron content was much higher and the copper slightly lower. The mechanical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... iron, gray cast iron, malleable irons, ductile iron, low-alloy steel castings, austenitic steels, corrosion-resistant castings, and cast aluminum alloys are the materials discussed. The article describes the general types of discontinuities or imperfections for traditional casting with sand molds...
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
... the intended function is decreased. The article addresses factors that may cause failures in castings for each metal type, starting with gray iron and progressing to ductile iron, steel, aluminum, and copper-base alloys. It describes the general root causes of failure attributed to the casting material...
Image
Published: 01 January 2002
Fig. 58 As-cast gray cast iron loaded in tension. It is common to find little or no macroscale information visible on the fracture surface of many casting alloys to indicate the fracture origin and direction of crack propagation. There are exceptions to this, including the nodular irons More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
.... This happened in a calendaring machine in which a heavy cast iron calendar roller (of about 9 tons as reported) is supported at two ends by two copper alloy bearings. The failure occurred when a replacement bearing was installed at the end of the normal service life of the original one, which lasted...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001809
EISBN: 978-1-62708-241-9
... resistance of nickel–aluminum bronze . Paper No.03262, NACE Corrosion/2003, NACE International , Houston, Texas 10.3168/jds.2019-16489 2. Ferrara R.J. , Caton T.E. , Review of dealloying of cast aluminum bronze and nickel–aluminum bronze alloys in sea water service . Mater. Perform...
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.c9001303
EISBN: 978-1-62708-215-0
... Abstract A sand-cast LM6M aluminum alloy sprocket drive wheel in an all-terrain vehicle failed. Extensive cracking had occurred around each of the six bolt holes in the wheel. Evidence of considerable deformation in this area was also noted. Examination indicated that the part failed because...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0047220
EISBN: 978-1-62708-220-4
... Abstract Two oil-pump gears broke after four months of service in a gas compressor that operated at 1000 rpm and provided a discharge pressure of 7240 kPa (1050 psi). The compressor ran intermittently with sudden starts and stops. The large gear was sand cast from class 40 gray iron...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0046505
EISBN: 978-1-62708-219-8
... been in service approximately 21 months. The valve consisted of a cast copper alloy clapper plate that was held closed by a pivoted malleable iron latch ( Fig. 1a ). The latch and top surface of the clapper plate were usually in a sanitary-water environment (stabilized, chlorinated well water...
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 Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001198
EISBN: 978-1-62708-221-1
... of the cast iron should therefore be held in the hypoeutectic alloy range. It remained to be investigated what effect stress relief annealing had on the ferrite content of the structure. For this purpose a number of untreated caps were annealed for 2h at 550, 575, 600, 650 and 750° C, respectively, after...
Image
Published: 01 January 2002
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) Parabolic shear dimples in cast Ti-6Al-4V from torsional loading More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001165
EISBN: 978-1-62708-234-1
... as well as the pump housing consisted of cast iron alloyed with nickel. Chemical analysis of the non-corroded part of the impeller showed the following composition [in wt.%]: C ges./total Graphit/grapite 3,14 2,55 Ni S 3,12 0,15 The microstructure consisted of lamellar...
Image
Published: 01 June 2019
Fig. 1 Sprinkler system in which a malleable iron deluge clapper latch failed from galvanic attack caused by contact with a copper alloy clapper in stagnant water. (a) Schematic illustration of sprinkler system showing deluge clapper latch that failed. (b) Photograph of clapper latch showing More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001908
EISBN: 978-1-62708-235-8
.... In aluminum die-casting, especially Al-Si-Cu alloys containing iron (the alloy of the parts under investigation), intermetallic compounds (Fe-Al-Mn-Si combinations) form locally or throughout the melt in the form of grains or needlelike crystals due to excessively low temperature in the crucible holding...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001781
EISBN: 978-1-62708-241-9
... head separated away from the shaft and hit the ground Fig. 3 A commercial hybrid-iron golf club with relevant parts labeled Abstract A commercial hybrid-iron golf club fractured during normal use. The club fractured through its cast aluminum alloy hosel. Optical analysis revealed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001284
EISBN: 978-1-62708-215-0
... Abstract Compound bow handle risers that had failed in service and during assembly along with an unassembled riser were submitted for analysis. The risers were die cast from magnesium-base alloy AM60A. Inspection of the failed risers and metallurgical investigations conducted on the stock riser...