... material and the solution. SEM-EDS analysis revealed chromium depletion at phase boundaries, which agrees with the location of preferential pit formation. Some other corrosion aspects of alloyed white irons have also been discussed. alloyed white irons corrosion mechanism erosion-corrosion chlorides...

...Abstract A number of research works have been conducted for clarification of the mechanism of intergranular stress corrosion cracking (IGSCC) in girth welds of high grade supermartensitic stainless steel (SMSS). Although some evidence indicates that the IGSCC is caused by chromium depletion due...

.... A number of research works have been conducted to clarify the mechanism and to establish the measures. The most likely mechanism of IGSCC is chromium depletion on grain boundary because it is observed in lean grade SMSS, which contains no molybdenum. However, neither depletion nor carbide of chromium has...

... developed for application in a laboratory test cell and a mobile test unit, as well. ERT electrochemical reactivation duplex stainless steel UNS S31803 austenitic stainless steel UNS S 31635 intergranular corrosion sensitisation chromium depletion testing method INTRODUCTION Stainless steels have...

... Practice E). In this context it can be demonstrated that the ERT is much more sensitive in detecting chromium-rich precipitations than the classic method is. First mobile measurements are presented, too. ERT austenitic stainless steel intergranular corrosion sensitisation chromium depletion UNS S...

... cyclic oxidation silicon effect scale spallation chromium depletion INTRODUCTION High temperature alloys need to form a protective external scale to resist high temperature oxidation. The properties of the external scale determine the extent to which protection can be provided. Ideally, the scale...

.... A strong correlation was found, for several heats of alloys, between grain-boundary chromium depletion and the susceptibility to stress-corrosion cracking. Most of the specimens were post-weld heat treated at 615 C for 10 h, simulating the stress-relief (SR) annealing given to BWR pressure vessels, while...

... in a greater decrease in pH. The changes in chloride concentration are much more modest, perhaps due to the formation of chloride complexes which can not be detected by the Ag/AgCl microelectrode. Presence of chromium depletion on the surface of alloy 825 in the crevice results in a more rapid decrease in pH...

... boiling water reactor sensitization chromium depletion δ-ferrite INTRODUCTION It is well known that sensitized Type 304 stainless steels develop acute susceptibility to intergranular stress corrosion cracking in high-temperature, high-purity water environments because of depletion of chromium (Cr...