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alloy composition

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Published: 01 December 1992
Fig. 8 EDS scan of polished specimen for alloy composition. Element Composition, % Iron 84.66 Chromium 12.61 Nickel 0.98 Silicon 0.27 Manganese 1.48 Molybdenum 0.00 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0090959
EISBN: 978-1-62708-222-8
... level than is lower bainite. The observed structure suggests that the austempering heat treatment was performed too close to the nominal martensite start temperature (M s ). Alternate bands of slightly different alloy composition, which resulted from rolling practice and are not unusual for this alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091330
EISBN: 978-1-62708-234-1
... was then replaced by alloy 686 plate (N06686) welded with 686 CPT. Conclusions Though the original materials are recognized for their resistance to corrosion and heat, the 686 alloy composition has superior pitting resistance as indicated by higher PREN (pitting resistance equivalent number) values according...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048620
EISBN: 978-1-62708-225-9
... impurities, such as lead, tin, or cadmium. This composition problem with zinc alloys was recognized many years ago, and particular attention has been directed toward ensuring that high-purity zinc is used. This corrective measure reportedly resulted in virtual elimination of this type of defect...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001107
EISBN: 978-1-62708-214-3
... analysis of the liner material was performed using scanning electron rricroscopy/energy-dispersive spectroscopy Results indicated that the alloy composition was representative of alloy 800. Corrosion or Wear Deposits X-ray diffraction analysis indicated that the carbides were primarily chromium...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001775
EISBN: 978-1-62708-241-9
... intense corrosive activity, SCC, and/or hydrogen-induced cracking of Monel 400. Failures of this alloy can be grouped in four categories: The chemical composition of the tube is presented in Table 2 , along with the alloy composition specified for Monel 400 according to ASTM B 366-95b. As shown...
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
... The actuator castings were manufactured per AMS 4218, class 2, grade C and were not 100% radiographically inspected. The chemical composition requirements for A356 aluminum alloy were met (nominal composition, Al-7.0Si-0.35Mg). Visual Examination of General Physical Features One of the as-received...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001330
EISBN: 978-1-62708-215-0
... Analysis/Identification Material Analysis Portions of tube 1 and 2 from either side of the weld joint were tested for chemical analysis using optical emission spectroscopy (OES) to determine the alloy composition. The results ( Table 1 ) confirmed that tube 1 and the portion of tube 2 containing...
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
.../Identification Material A portion of the tubing was chemically analyzed by optical emission spectroscopy (OES) to determine the alloy composition. Table 1 indicates that the tube was in compliance with the chemical requirements of ASTM A213 specifications for Grade 304H austenitic stainless steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0065827
EISBN: 978-1-62708-221-1
... Abstract Failure analysis results were employed to identify a better alloy. Chipper knives used in the field to chip logs failed frequently. The knives were made of alloys with a composition of Fe-0.48C-0.30Mn-0.90Si-8.50Cr-1.35Mo-1.20W-0.30V. The development of tougher alloy steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001727
EISBN: 978-1-62708-225-9
... vehicle failed at Cape Kennedy ( Fig. 2 ). They were made of 17-4 PH in the H900 condition — a martensitic, age-hardening alloy. In the H900 condition (solution treated and aged 1 hr at 900 F), the material had nominal strengths of 180,000 psi yield and 200,000 psi tensile. The alloy's composition: 0.07 C...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001046
EISBN: 978-1-62708-214-3
... commercially produced sheet and were not polished prior to exposure. Typical chemical compositions are given in Table 1 . Also included in Table 1 are compositions for Inconel alloys 601, 617, and 690 and type 347 stainless steel, which were included in the laboratory testing (discussed below). Typical...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001085
EISBN: 978-1-62708-214-3
... scans of the material, as well as the approximate alloy constituents of both the base metal and the weld metal. The scans show that the casting was welded with a weld material similar in composition to the casting material, in accordance with specifications. Fig. 8 EDS scan of polished specimen...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001020
EISBN: 978-1-62708-214-3
... are shown in Table 1 . Comparisons of this composition within the range of known commercial alloys of this general type showed it to correspond closely to type 7014. Results of chemical analysis Table 1 Results of chemical analysis Element Composition, % Strut alloy 7014 alloy...
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 Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001827
EISBN: 978-1-62708-241-9
... are more stable than the sulfides. The oxidation of the sulfides releases elemental sulfur, which then diffuses deeper into the metal, producing more sulfides, and the process repeats itself [ 1 ]. Various parameters may affect the development of these two forms, including alloy composition...
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
... handling wavelength-dispersive spectrometry CHEMICAL ANALYSIS is often a useful tool for failure analysis. There are two main categories of chemical analysis that are often used by failure analysts: Bulk composition evaluation: often performed in order to determine whether the correct alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001595
EISBN: 978-1-62708-235-8
... of alloying elements. A comparison measure, identified as the critical diameter(D I ), was implemented to estimate the hardening response of a steel from the chemical composition. The critical diameter calculated for a given steel composition can thereafter be used to create an approximate through-thickness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001638
EISBN: 978-1-62708-228-0
... of sulfidation is influenced by such variables as the alloy composition, exposure time, partial pressures of H 2 and H 2 S, and temperature. Concentrations of H 2 S as low as 1 ppm have been known to cause sulfidation. 1 The effluent stream from the furnace is not expected to contain CO or CO 2 . Instead...