... corrosion corrosion fatigue INTRODUCTION Stress assisted corrosion (SAC) is a common damage mechanism in black liquor recovery boilers. In 2004, it was reported to affect up to 50% of recovery boilers. ¹ This mechanism is taken seriously because a leak can allow water to enter into the furnace...

... of these effects will be noted. The need for an improved understanding of combined mechanical and environmental stress effects is motivated. Atmospheric corrosion stress corrosion cracking corrosion fatigue anti-corrosion coatings INTRODUCTION Structural materials and component designs are often qualified...

...The study involved the following lists of tests: (1) general corrosion tests via Linear Polarization Resistance and weight loss, (2) fatigue in air and (3) corrosion fatigue. General corrosion tests were provided as first approximation of rods susceptibility to form crack initiation sites. Air...

... time and crack growth rate including galvanic couples, crevices, and protective coatings are being investigated. Environment-assisted cracking corrosion fatigue atmospheric corrosion protective coatings INTRODUCTION High strength aluminum alloys, such as the 7xxx series, are susceptible...

... to assess growth rate sensitivity of various weld microstructures to cyclic frequency, and the fatigue response at the low end of the frequency range was explored in greater detail. wellhead structural casing X80 8630 corrosion fatigue environmental testing cathodic protection hydrogen charging HPHT...

.... Case studies are presented from the power and pulp and paper industries. deaerator corrosion fatigue flow accelerated corrosion boiler equipment INTRODUCTION Prior to about 1983, deaerator (DAs) vessels were considered low-risk equipment and were inspected and tested infrequently. The first...

... that conforms to MIL-PRF-23377 ²¹ . RESULTS AND DISCUSSION Abstract Research shows that chromate can offer a large, 10 fold, reduction in corrosion fatigue crack growth rates when added to a bulk sodium chloride (NaCl) solution in high concentrations, and can inhibit corrosion fatigue when added...

... was undertaken, which was conducted on a daily basis, extending to weekly for longer term tests. Mechanical loading Abstract The growth rate of small and long stress corrosion and corrosion fatigue cracks in 12Cr steam turbine blade steels in low conductivity water containing 35 ppm Cl^- (simulating...

... to the increase of the fatigue loads, higher mechanical properties are required. Under the combined effect of those conditions, sucker rod failures can take place mainly due to corrosion fatigue (CF). Considering this scenario, the development of a sucker rod with adequate performance in those environments...

... elsewhere. ^{4 - 6} The corrosion fatigue (CF) behavior of passive metals such as stainless steels and Ni alloys is in fact strongly influenced by its corrosion behavior under alternating loading. Four different models for EAC according to Spaehn ⁷ are summarized in Table 1 . Under...

...Abstract Engine components, such as injection systems, encounter a large number of load cycles (N > 10⁷) during their lifetime and are exposed to potentially corrosive media such as fossil fuels. For this reason, corrosion fatigue in the very high cycle fatigue (VHCF) regime has...

...Abstract Corrosion fatigue (CF) of duplex stainless steel X2CrNiMoN22-5-3 was investigated in situ under geothermal conditions of Northern German Basin (NGB) aquifer solution. The specimens, which were placed in the corrosion chamber, underwent purely alternating axial cyclic push/pull load...

... properties, constitute an attractive alternative especially for the challenging conditions observed in geothermal formations; basically due to higher temperatures, and depending on the location, due to the presence of corrosive environments. ^{3 - 5} Fatigue and corrosion fatigue examinations were...

... that may suffer from fatigue failure. fatigue corrosion fatigue steel fatigue crack growth digital image correlation strain INTRODUCTION Most works look at the use of DIC in air however; some works have started to develop the technique for use in-situ in a liquid environment. DIC has been used...

... performed after corrosion fatigue tests in neutral pH solution at 20 and 200°C, respectively. These investigations revealed that the environment temperature affected not only the crack propagation mode but also the general corrosion behavior. This paper discusses effects of the production fluid temperature...

... is similar within each environment, air, deaerated synthetic seawater, and sour environment. Corrosion fatigue air fatigue S-N curve generation H₂S deaerated synthetic seawater unbonded flexible pipe 4-point-bending INTRODUCTION For the last 40 years, unbonded flexible pipes have been a key...

... and Offloading system (FPSOs). They can suffer from a failure mechanism known as corrosion fatigue, which is brought about by flooding of the pipe annulus initiated by either damage to the outer sheath (which causes ingress of seawater into the annulus) or by the transport of condensed water through the inner...

... by corrosion fatigue mechanism. The pipe-pressure fluctuation accelerates the stress corrosion cracking development significantly but the effect of loading consequence is likely negligible. The crack growth is less sensitive to environmental changes that in gas lines does. In addition, the fatigue crack growth...

... In geothermal power plants materials, e.g. pumps are exposed to extreme corrosive thermal water. This results in corrosion fatigue and so inevitably the reduction of the lifetime of these components. Also in the field of the carbon dioxide storage technology (carbon capture and storage, CCS) components...

... based on the tolerable engineering standards for conversion of the directive for pressure machines (97/23/EG). All parts of the system are resistant against corrosion medium, pressure and temperature. high pressure corrosion fatigue corrosion chamber INTRODUCTION 3.2 Test stand Engineering rules...