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stainless steel metallography

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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
... in Fig. 1(b) . The crack has the branched, transgranular appearance typical of Cl-SCC in stainless steel. Metallography also indicated that prior cracks had not been completely removed before welding. It appears the original casting suffered SCC in a low-oxygen area high in chlorides from repeated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
.... The vessel had a type 304 stainless steel shroud around the catalyst bed as protection against the overheating that was possible if the gas bypassed the bed through the refractory material. The failure was observed to have begun at the toe of the shroud-support ring weld. The ring was found to have a number...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001059
EISBN: 978-1-62708-214-3
...Abstract Abstract Field metallography and replication were performed on a type 316 stainless steel column in diglycol amine vacuum service to determine the cause of visible OD pitting on the column in several areas above the insulation support rings. The examination revealed transgranular...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001905
EISBN: 978-1-62708-217-4
...Abstract Abstract A bomb retaining ring fabricated from type 302 stainless steel unwrapped during a practice flight, causing the bomb fins to deploy. The retaining ring was able to unwrap itself because it was thinner and softer than required. Hardness testing, metallography, and tensile...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001371
EISBN: 978-1-62708-215-0
...Results of spectrochemical analysis Table 1 Results of spectrochemical analysis Element Composition, wt% Chemical requirements for type 410 stainless steel Sample B Sample C Sample D Carbon 0.12 0.12 0.12 0.15 max Manganese 0.42 0.42 0.41 1.00 max...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001351
EISBN: 978-1-62708-215-0
...Results of chemical analysis Table 1 Results of chemical analysis Element Composition, wt% Bellows Chemical requirements for AISI 347 stainless steel Carbon 0.076 0.08 max Chromium 17.8 17–19 Nickel 9.4 9–13 Manganese 1.34 2.00 max Silicon 0.85 1.00 max...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0047447
EISBN: 978-1-62708-230-3
... the chloride concentration is considerable. The biggest problem was the bending of these parts. Deformed material with high residual stresses would always be susceptible to SCC. Redesign to lower stresses was essential. In addition, change to a high-strength duplex stainless steel with its higher strength...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001184
EISBN: 978-1-62708-235-8
... in a pipe 18/8 stainless steel. Longitudinal section through the weakly magnetized region. Etch: V2A pickle 10× Fig. 6 Foreign inclusion in a pipe 18/8 stainless steel. Longitudinal section through the weakly magnetized region. Etch: V2A pickle 500× Abstract Abstract Examples of metallic...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001352
EISBN: 978-1-62708-215-0
... Procedure and Results Discussion Conclusion and Recommendations Surface Examination Metallography Chemical Analysis Mechanical Properties The martensitic stainless steel stems of the ball valve had 27 mm (1.1 in.) long austenitic stainless steel sleeves around them. These sleeves were...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001360
EISBN: 978-1-62708-215-0
... Type 301 stainless steel sheet, cold rolled to 40% reduction (full hard), showing almost complete transformation to martensite in severely deformed austenite grains. 250×. Source: Ref 1 Abstract Abstract A blade from the engine cooling fan of a pickup truck fractured unexpectedly. The blade...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
... confusion later in the investigation. Fig. 3 (a) Residual-stress opening crack in silver-plated brass teapot. (b) Evidence of residual stress in stainless steel anchor ring Failures can be caused by a single factor but often are caused by a combination of factors. For example, stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001689
EISBN: 978-1-62708-233-4
...Abstract Abstract The drive shaft on a centrifugal pump fractured after five months of operation. The fracture occurred at a packing gland inside a sleeve against which the packing material sealed. The shaft and sleeve were of duplex stainless steel. In contrast to a previous conclusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
.... Klepfer H.H. , “Investigation of Cause of Cracking in Austenitic Stainless Steel Piping,” General Electric Company Report NEDO-21000-1, July 1975 7. Danko J.C. , in Proc. Conf. on Materials in Nuclear Technology, American Society for Metals , 1983 , p 181 – 188 8. Marston...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001090
EISBN: 978-1-62708-214-3
...Abstract Abstract A stainless steel flexible connector failed after a short period of service. Visual examination of the failed part revealed that a fracture had occurred in the thin-walled stainless steel bellows brazed into the flanges at each end. Surface examination by SEM fractography...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001336
EISBN: 978-1-62708-215-0
... requirements, except at bend areas. Metallography and chemical analysis confirmed that the sued new stock austenitic stainless steel pipe flange assemblies failed because of an austenite-martensite galvanic couple activated a chlorine bearing electrolyte. The undesirable martensitic areas were clearly...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001343
EISBN: 978-1-62708-215-0
... cracks at the inner surface of the material. Polished and etched Abstract Abstract A section of type 304 stainless steel pipe from a stand by system used for emergency injection of cooling water to a nuclear reactor failed during precommissioning. Leaking occurred in only one spot. Liquid...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
.../978-1-4684-9084-8_16 8. White W.E. Microscopy and the Study of Corrosion . Applied Metallography Van Nostrand Reinhold , 1986 , pp. 281 – 296 10.1007/978-1-4684-9084-8_17 9. “ Standard Test Methods for Estimating the Depth of Decarburization of Steel Specimens ,” E 1077...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001315
EISBN: 978-1-62708-215-0
... showing weld profiles and extent of fusion Fig. 3 Optical micrograph showing a cracklike opening that extends throughout the fusion zone. It is on the verge of separation Abstract Abstract AM350 stainless steel bellows used in the control rod drive mechanism of a fast breeder reactor...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001042
EISBN: 978-1-62708-214-3
.... However, subsequent microscopic examination of the cross section revealed the material to be sound. No lamination was found, only minor nonmetallic inclusions that are normal in a stainless steel. Surface Examination Metallography Chemical Analysis/Identification Fractography clearly...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001052
EISBN: 978-1-62708-214-3
...Abstract Abstract A failure analysis was conducted to determine the cause of recurring failure of flexible bellows in an exhaust hose assembly. The bellows were made of type 321 stainless steel. Visual examination showed that cracks followed a path along the seam weld in the bellows. Most...