Purchase your copy of ASTM E – 08() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. Standard Practice for Preparing Sulfur Prints for Macrostructural Examination – ASTM E /ER 2 Sulfur prints of as-cast specimens generally reveal the. For referenced ASTM standards, visit the ASTM website, , or.
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ASTM E – 08() Standard Practice for Preparing Sulfur Prints for Macrostructural Evaluation
For specific precautionary astn, see Section 9. Under carefully controlled conditions, it is possible to compare print image intensities if the images are formed only by manganese sulfides. Very faint images in the sulfur print can be made more visible by scanning the sulfur print into a PC, and using a photo editor to increase the color saturation.
The experimental facility allows examining wstm droplet impingement erosion in the same conditions as the secondary e11800 piping in nuclear power plants by generating the magnetite on the surface of the test materials. It has been thought that wall thinning on the secondary side piping in nu-clear power plants is mostly caused by Flow-Accelerated Corrosion FAC. This paper presents a comparison of the mass loss rate of the tested materials between carbon steel A B and low alloy steel A P22 resulting from degradation effect.
ASTM E – 08 Standard Practice for Preparing Sulfur Prints for Macrostructural Evaluation
The layer of magnetite on the surface of A is thicker than that of A P22, due to the different amount of chrome content. Historical Version s – view previous versions of standard. In atm power plants, carbon steel piping having experienced wall thinning degradation is generally replaced with low-alloy steel piping.
However, after a certain period of time, the adtm loss rate of A P22 became greater than that of A B. The magnetite is formed by controlling the water chemistry and the temperature of fluid inside the facility.
The density of the print image should not be used to assess the sulfur content of a steel.
It is presumed that the results are caused by the different yield strengths of the test materials and the different degrees of buffer asym of the magnetite deposited on their surfaces. However, the materials e11180 pipes carrying two-phase flow should be selected considering their susceptibility to LDIE. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
An experimental facility was set up to develop a prediction model for clarifying multiple degradation mechanisms that occur together. Scientific Research An Academic Publisher. In the initial stage of the experiments, the mass loss rate of A B was greater than that of A P No wstm units of measurement are included in this standard.
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Standard Practice for Preparing Sulfur Prints for Macrostructural Examination
The sulfur print complements macroetch methods by providing an additional procedure for evaluating the homogeneity of a steel product. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Steels with compositions that produce predominantly titanium or chromium sulfides will not produce astj images.
Selection of appropriate printing practices including selection of aatm of emulsion coated media, acid type and strength, will yield satisfactory prints. Very low sulfur content steels will produce too faint an image to be useful for macrostructural evaluations.