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aluminum-silicon system

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001029
EISBN: 978-1-62708-214-3
... originated in hot tear locations in the castings. Microprobe analysis of fracture surfaces in the hot tear region indicated a much higher silicon-to-aluminum ratio compared with the overload fracture area. No microstructural anomalies related to the failure were found during metallographic examination...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001364
EISBN: 978-1-62708-215-0
... compressor Impellers Mechanical properties Melting Reactions (chemical) Rubbing Aluminum-silicon alloy (Other, miscellaneous, or unspecified) failure Background Applications A centrifugal refrigeration system depends upon centrifugal force to compress the refrigerant vapors...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001628
EISBN: 978-1-62708-234-1
... elements are suggestive of the presence of erosion and/or corrosion debris from metallic components within the cooling system. The deposit that was scraped from the cylinder was found to contain primarily carbon and nickel, along with detectable iron, silicon, aluminum, calcium, sulfur, and oxygen...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001760
EISBN: 978-1-62708-241-9
... for 10 s. In Fig. 11 , it is seen that the microstructure of the cylinder head material consisted of a solid solution of aluminum-silicon (rich phase is made of aluminum) and a uniform distribution of a eutectic silicon phase and also intermetallic phases. In general, the microstructure conforms...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... basic systems are discussed briefly: the silicon-lithium detector and the silicon-drift detector. Silicon-Lithium Detector Until recent years, the lithium-drifted silicon or Si-Li (i.e., “silly”) energy-dispersive spectrometer (EDS) has been the workhorse in x-ray spectroscopy because of its low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001691
EISBN: 978-1-62708-234-1
.... Never leave stagnant water in a system that is susceptible to corrosion; drain and dry the system if the water is not flowing. High-strength aluminum alloys depend on precipitated phases for strengthening and are susceptible to intergranular corrosion and pitting. Duraluminum-type alloys (Al-Cu...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001323
EISBN: 978-1-62708-215-0
... of the gouge shown in Fig. 6 . The results show the presence of sodium, aluminum, silicon, phosphorus, sulfur, potassium, calcium, titanium, and iron. Sodium in the form of sodium hydroxide caused the gouging, and the attack was probably aggravated by the presence of silicon and sulfur (silicates and sulfur...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... background material. EDS Results of Processing Fluids Table 1 EDS Results of Processing Fluids Element Cutting Fluid Relative Weight Percent Rinse Water Residue Coolant 1 Coolant 2 Detergent Iron … … … … 0.5 Silicon … … … … 1.3 Aluminum … … 0.1 … … Sodium...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001701
EISBN: 978-1-62708-219-8
... analysis using scanning electron microscopy and energy dispersive x-ray analysis revealed a significant presence of calcium, silicon, and sulfur in the products. No notable presence of chlorides was evident. Trace amounts of aluminum, silicon and manganese were observed. The products appeared to have...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001320
EISBN: 978-1-62708-215-0
... spectroscope (EDS) to determine the elements present. The pit deposits were found to contain major amounts of chlorine and potassium, a moderate amount of iron, and minor to trace amounts of sulfur, silicon, sodium, and aluminum ( Fig. 5 ). The presence of chlorine (chlorides) in the pit deposits indicates...
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...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001366
EISBN: 978-1-62708-215-0
... ). The impeller microstructure exhibited copious amounts of insoluble phases along the grain boundaries ( Fig. 10 ), EDX analyses identified the phases as being composed predominantly of magnesium and silicon (presumably Mg 2 Si) and iron and aluminum (Fe 3 A1). The structure otherwise appeared typical...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001344
EISBN: 978-1-62708-215-0
... carryover of caustic (NaOH) into the steam system. SEM-EDS analysis of a fracture surface Table 2 SEM-EDS analysis of a fracture surface Element Composition, % Iron 67.5 Chromium 17.0 Sodium 6.0 Nickel 6.0 Silicon 2.0 Calcium 1.0 Aluminum <0.5 Sulfur <0.5...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... refractories, magnesia-dolomite and alumina-based systems with carbon and graphite. Also, the roles of oxycarbides, oxynitrides, and silicon-aluminum oxynitrides, as well as metals and alloys in refractories, have been documented. These aspects are treated in the following paragraphs and sections...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001789
EISBN: 978-1-62708-241-9
... metallography stress intensity Al-Si bronze (wrought aluminum-silicon bronze) UNS C64200 Ni-Al bronze (wrought nickel-aluminum bronze) UNS C63200 Introduction The good general corrosion performance of bronze alloys in marine environments is well known [ 1 ], and the combination of strength...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001099
EISBN: 978-1-62708-214-3
... Abstract Uncoated high-strength alloy steel cap screws retaining a cast aluminum (356.0) diffuser assembly in a centrifugal refrigerant compressor failed in a brittle manner a short time after the system was placed in operation. Evidence obtained during the failure analysis indicated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090460
EISBN: 978-1-62708-234-1
... concentrations of silicon, calcium, and aluminum, with lesser amounts of sulfur and sodium in addition to carbon and oxygen. The results were consistent with a mineral- and glass-filled nylon resin. Analysis of the surface material, which exhibited obvious degradation, showed a generally similar elemental...
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
... the degradation of various protective systems, such as corrosion inhibitors and lubricants. The article describes the failure analysis of steel, iron, copper, aluminum, and their alloys. It also discusses the probes available to monitor conditions relevant to MIC in industrial systems and the sampling...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001357
EISBN: 978-1-62708-215-0
..., and cobalt; titanium, aluminum, and molybdenum were minor alloying elements. Tungsten, niobium, and tantalum were not detected. A more accurate chemical analysis revealed the following composition: 53.7% Ni, 18 to 20% Cr, 18.2% Co, 3.7% Ti, 3.7% Mo, 2.5% Al, 0.1 to 0.2% Fe, <0.1% Nb, 0.085% C, and 0.006...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... the analyst is not very familiar with the alloy system in question. For example, the potential consequences of exceeding impurity limits for zinc and aluminum casting alloys are discussed in various articles in Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, Volume 2 of ASM...