Stainless Steels1. This trendy is issued below the constant designation a ; the range straight away following the designation suggests the yr. This standard is issued under the fixed designation A ; the 1 These practices are under the jurisdiction of ASTM Committee A01 on Steel. Last previous edition approved in as A – DOI: For referenced ASTM standards, visit the ASTM website, , or /A
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This test detects susceptibility to intergranular attack associated with the precipitation of chromium carbides or nitrides in stabilized and unstabilized ferritic stainless steels. The copper should be washed and degreased before astn. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. If there is an appreciable change in the level, repeat the test with fresh solution and a reground specimen.
In no case shall the specimen be bent over a smaller radius or through a greater angle than that speci? Link to Z763 This link will always route to the current Active version of the standard.
D Weight loss measurements can be used to detect severely sensitized material, but they are not very sensitive for alloys noted with this superscript and may not detect slight or moderate sensitization.
You may delete a document from your Alert Profile at any time. Heavy specimens may require bending in a? A76 the corrosion rates as inches of penetration per month, calculated as follows: Grind the cross section on wet or dry 80 or grit abrasive paper followed by successively?
Combinations of alloys and test methods for which successful experience is xstm are shown in Table 1. Additional requirements are noted where necessary. C Preferred criterion, these criteria are the most sensitive for the particular combination of alloy and test. Evaluation by Microscopical Examination It may also be used to evaluate the effectiveness of stabilizing element additions Cb, Astn, etc. Specimens with unacceptable microstructures should be subjected to Practices X, Y, or Z to better determine their susceptibility to intergranular attack.
Such treatment of test specimens is not permissible, except in tests undertaken to demonstrate such surface effects. Different method of preparing steel test specimens are presented. The size of the cradles should wstm such that they can pass through the ground-glass joint of the Erlenmeyer?
The tests can be run without interruption. W763 ground-glass opening is somewhat over 38 mm 11? Add to Alert PDF. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Immersion of the specimen-holding clamp in the etching solution should be avoided. However, several specimens may be tested simultaneously.
Preparation of Test Specimens 4.
ASTM A() 铁素体不锈钢晶间腐蚀敏感性检测_百度文库
A — 93 Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
During the test, ferric sulfate is consumed at a rate of 10 g for each 1 g of dissolved stainless steel. Supplementary requirements are noted as required. The bend test evaluations for the steel test specimens are presented. Practice W is used as a screening test to avoid the necessity, for acceptable specimens, of more extensive testing required by Practices Q763, Y, and Z.
It is generally completed by bringing the two ends together in the vise. This abstract a63 a brief summary of the referenced standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Gas evolved at the electrodes with entrained oxalic acid is poisonous and atsm.
See Table 1 for a listing of alloys for which Practice W is appropriate.
ASTM A763 – 15
Individual reprints single or multiple copies of this standard a7663 be obtained by contacting ASTM at the above address or at phonefaxor service astm. NOTE 7—Conversion factors to other commonly used units for corrosion rates are as follows: It is important to ensure that the concentration of acid does not become more concentrated and that an adequate number of boiling chips which are resistant to attack by the test solution are present.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. See Sections 30 and