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High-temperature corrosion and oxidation

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001738
EISBN: 978-1-62708-220-4
... data-set; see figure 8 . This can be explained by the following. The creep rate of the data set is obtained from creep tests with relatively high stresses (σ > 40 MPa). The deformation mechanism at these relatively high stresses is power-law creep by climb. At low stresses however, a transition to...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090114
EISBN: 978-1-62708-229-7
... Udimet 520 Creep fracture/stress rupture Thermal fatigue fracture High-temperature corrosion and oxidation This case history illustrates how to evaluate creep, oxidation, and TMF in a first-stage gas turbine blade. Often, it is necessary to estimate the temperature and the applied stress to...
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
... coating but tend to make the coating less ductile. If a single coating can operate successfully over a range of temperatures with different forms of corrosion attack, such as types I and II hot corrosion and high-temperature oxidation, the coating essentially responds in such a way that it forms either...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
... in the dip tube. Figure 22 shows part of the remaining cone material removed for characterization. Metallurgical sections through this cone plate material indicated that the damage was predominately due to high-temperature oxidation and erosion. In addition, there were isolated regions that showed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091754
EISBN: 978-1-62708-229-7
... pressures of the gases within the duct, combined with the high temperatures, facilitated nitrogen pickup. No recommendations were made. Intergranular precipitation Oxidation Spalling Inconel 317 UNS N06617 High-temperature corrosion and oxidation The presence of carbides and carbonitrides in...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001824
EISBN: 978-1-62708-241-9
... series and in the presence of an aggressive environment (H 2 S, CO 2 , high salinity, temperature, and pressure). The severity can be increased when the unfavorable area ratio is applicable where the anodic is smaller than that of the cathodic area [ 4 , 5 ]. Stress-corrosion cracking (SCC) is well...
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
... sections, high-temperature environmental attack in the form of high-temperature oxidation and hot corrosion are the most common [ 1 ]. In utility gas turbines, the air and fuel frequently contain contaminants that can cause serious hot corrosion problems. A wide range of fuels from clean gas to crude...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... corrosion mechanisms insidious. If undetected, they can lead to catastrophic system failures. Certain environments induce specific corrosion failure modes. Hydrogen damage, liquid- and solid-metal-induced embrittlement, microbiologically influenced corrosion (MIC), and high-temperature corrosion are...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001061
EISBN: 978-1-62708-214-3
...). Corrosion-related deterioration was not found, indicating that the material was generally suitable for the intended service. High residual tensile stresses in the welds and HAZS, resulting from field welding under highly constrained conditions using inadequate weld procedures, were the most probable cause...
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
... corrosion Liners, corrosion Incoloy 800 UNS N08810 High-temperature corrosion and oxidation A 150 mm (6 in.) diam, 1.6 mm (0.065 in.) thick alloy 800 liner from an internal bypass line in a hydrogen reformer was removed from a waste heat boiler because of severe metal loss. Visual and...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001616
EISBN: 978-1-62708-229-7
... during assembly of the tubes reduced the corrosion problem. Flue gas BS-6323 Pitting corrosion High-temperature corrosion and oxidation Severe corrosion of carbon steel tubes in an air preheater was observed at a rice straw fired power plant. The plant has the capacity to produce...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001326
EISBN: 978-1-62708-215-0
... entrapped slag of very high basicity. The thermowells are used for the insertion of thermocouples at 306 inlet and 306 exit points of heavy-water coolant that enters the core in a nuclear power plant. Using the criterion of uniform corrosion, type 316L stainless steel was chosen for the application...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... galvanic corrosion, but tends to accelerate the corrosion of the other metal with which a galvanic couple is formed 8 . In a galvanic couple, the cathodic titanium may absorb the hydrogen evolved in the reaction to form hydrides if the temperature is sufficiently high. The formation of titanium hydrides...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001049
EISBN: 978-1-62708-214-3
... digester and of a proprietary high-nickel material on the bottom three-fourths. Examination revealed three distinct modes of deterioration. General corrosion was linked to the use of unspecified overlay metal. Cracking resulted during installation from the use of a material susceptible to hot cracking...
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
... UNS S30900 Incoloy 800 UNS N08800 Inconel 625 UNS N06625 Inconel 600 UNS N06600 Inconel C-276 UNS N10276 High-temperature corrosion and oxidation The thin plates within a type 309 stainless steel chlorinated solvent combustion preheater/heat exchanger showed severe...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... comprised circular cylinders fabricated by plating a thin layer of silver on each of the contact surfaces (uranium and stainless steel) and pressing the parts together at elevated temperature to solid-state bond the two silver surfaces. The manufacturing process produced a high level of residual stress at...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... vessel that was kept in storage for 1 year Clear evidence of sensitization was found in areas where IGSCC occurred. Sensitization was extensive in the dished end that had been exposed to sodium at high temperature, and it occurred in a narrow band similar to that typical of weld decay in the dished end...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001834
EISBN: 978-1-62708-241-9
...: waterside and fireside corrosion. Oxidative corrosion significantly reduces the thickness of tube walls, increases vapor temperature, and creates serious risks to high-temperature components in operation [ 4 , 5 ]. This study investigated a boiler explosion caused by the re-heater CrMo tubes of a...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... prominence. The intent is to provide not only products and systems that garner high customer satisfaction but also increase productivity, reduce costs, and meet delivery requirements. In general, high quality refers to products and systems manufactured to higher standards, in response to higher...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048331
EISBN: 978-1-62708-229-7
... 321 UNS S32100 2.25Cr-1Mo High-temperature corrosion and oxidation The top tube of a horizontal superheater bank in the reheat furnace of a steam generator ruptured as shown in Fig. 1 after about 7 1 2 years of service (normal service life would have been 30 years). The tube...