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cast corrosion resistant alloys

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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.c9001809
EISBN: 978-1-62708-241-9
... to dealloying. Temper-anneal heat treatment further diminishes dealloying by creating a microstructure that is more dealloying resistant [ 2 ]. Furthermore, ASTM B148, specification for aluminum– bronze sand castings, stipulates heat treatment of alloy C95800 to increase corrosion resistance...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047441
EISBN: 978-1-62708-234-1
... with the classic spongy appearance of cavitation. Two changes were proposed: streamlining the part to avoid abrupt changes in fluid flow; and a change in alloy to a more corrosion-resistant material (304 or preferably 316) to increase the tenacity of protective films. Cavitation Design Supports 8620...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001083
EISBN: 978-1-62708-214-3
... to prevent future failures were recommended: changing the impeller composition to a cast stainless steel, or implementing stricter nondestructive evaluation requirements for copper alloy castings. Boilers Sulfide attack C83600 UNS C83600 Intergranular corrosion Casting-related failures...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001681
EISBN: 978-1-62708-234-1
... ], containing both sulfidizing and oxidizing gases; also the temperatures are high (e.g., up to 1500 °C) [ 2 ]. Thus the burner must withstand a very aggressive environment, and it is clear that the Co-Cr-Fe alloy casting did not have adequate corrosion resistance to the coal gasification combustion environment...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c9001568
EISBN: 978-1-62708-230-3
... Abstract Two suction rolls at the first press section of a 25 ft. wide paper machine developed cracks within two years of service. The rolls were austenitic stainless steel castings made of ASTM A 351 Grade CF8M alloy containing molybdenum. The rolls were exposed to slightly acidic white water...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
... by metal dissolution or oxidation. The more cathodic material is more corrosion resistant (i.e., more noble). Fig. 3 Galvanic series of metals and alloys in seawater. Alloys are listed in order of the potential they exhibit in flowing seawater; those indicated by the black rectangle were tested...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001394
EISBN: 978-1-62708-234-1
... and is apparently a proprietary alloy. High chromium-nickel alloys of this composition mostly find application as heat-resisting alloys. To those of a lower chromium and/or nickel content an addition of molybdenum is usually made in order to improve their corrosion resistance. The pump had been in use...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... are prone to corrode by metal dissolution or electrochemical oxidation. The more cathodic material is more corrosion resistant (i.e., more noble). Fig. 3 Galvanic series of metals and alloys in seawater. Alloys are listed in order of the potential they exhibit in flowing seawater; those indicated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001820
EISBN: 978-1-62708-241-9
... cracking. Based on test data and cost, A217-WC9 cast Cr–Mo steel would be a better alloy for the application. valve body corrosion H2S exposure Cr-Mo steel pitting cracks chemical analysis corrosion resistance A216-WCC (cast carbon steel) UNS J02503 A217-WC9 cast Cr–Mo steel UNS K21590...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001224
EISBN: 978-1-62708-232-7
... for sigma phase formation would have had adequate corrosion resistance at the relatively low service temperature. Castings Heat resistant steels Recuperators Sigma-phase Tubes Fe-1.4C-2.3Si-28Cr (Other, general, or unspecified) fracture A recuperator for blast heating of a cupola furnace...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0091622
EISBN: 978-1-62708-230-3
.... If redesign was impossible, an alloy more resistant to Cl-SCC, such as a duplex stainless steel or a high-molybdenum (4 to 6%) austenitic stainless steel, should be used. Chlorides Digesters Paper machines CF-8M UNS J92900 Stress-corrosion cracking A CF-8M (cast type 316) neck liner or manway...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001718
EISBN: 978-1-62708-220-4
... hub. (0.7×) In addition to the pock-marked surface, the damaged impeller is peppered with corrosion pitting. The worst area of pitting is shown in Figure 4 . Zirconium and zirconium alloys are extremely resistant to corrosives, including the aqueous hydrochloric acid (HCl) service environment...
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
... corrosion resistance. Etching of the core structure showed a selective form of cast iron corrosion (spongiosis or graphitic corrosion) which lowered the strength of the cast iron enough that a knife could scrape off a black powder (10.85% C, 1.8% S, 1.45% P). Analysis showed that some of the “sulfate” found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001163
EISBN: 978-1-62708-234-1
... a welded joint by pickling is not possible 4 . Since the coherent fine oxide film, necessary for the corrosion resistance of the alloy, can only form at smooth surfaces, no shot with sharp edges may be used that might give a too rough surface. From the operating point of view, care must be taken to make...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001109
EISBN: 978-1-62708-214-3
...: modification of the processing parameters to reduce the salt deposition and / or change of bar materials to a more resistant alloy. Castings Fluxing Fused salts Hot gas corrosion Ironmaking Pelleting Sintering furnaces HH UNS J93503 High-temperature corrosion and oxidation Background...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001566
EISBN: 978-1-62708-229-7
... C3/C4, or ferritic stainless steel alloy per ASTM 182, Grade FXM27. Boilers Chlorides Diffuser nozzles Thermal stresses CF-8 Stress-corrosion cracking The desuperheater diffuser nozzle in the steam supply line failed within 9 months of service in a 8.25 MN/m 2 (1200 psig) steam line...
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
... and decarburization. Both of these definitions apply equally well to a casting or a weldment. Proper selection of casting process, alloy selection, part and mold design, solidification control, and grain refinement minimize hot cracking problems. Hot strength (resistance to cracking at solidification temperature...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001779
EISBN: 978-1-62708-241-9
.... Figure 6 is the potentiostat graph which clearly shows that the corrosion parameters of feed water are lower than distill water. Important data given in Table 6 disclosed the lower corrosion rate of feed water, so resistance to corrosion for this alloy in feed water is in “well” category [ 14...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... due to erosion/corrosion resulted in stress levels increasing to approximately 520 and 550 MPa. Such a stress increase significantly reduced alloy resistance and strain tolerance of the bucket in the presence of low temperature hot corrosion, as shown in Fig. 11 . 7 Due to the tip shroud stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001712
EISBN: 978-1-62708-234-1
... or carbonitrides, however these effects were not quantified in the references cited. Moreover, no mention was found on the effect of nitridation on alloy density. Therefore, the experiment was designed to help determine the effects of major elements Ni, Cr, Co, and Fe in cast heat resistant alloys. Ten alloys...